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When to service the propeller?

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rv10rob(at)gmail.com
Guest

Posted: Mon Dec 28, 2020 8:59 pm Post subject: When to service the propeller?

My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new.   To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!



-Rob



-- 

Rob Kochman

RV-10 Flying since March 2011

 Kirkland, WA

philperry9

Joined: 23 Nov 2011
Posts: 381

Posted: Mon Dec 28, 2020 9:14 pm Post subject: When to service the propeller?

Since it’s experimental, you can send it to the prop shop to be disassembled and inspected.   If there is little wear, you can have them reassemble with new seals and grease.  “Pack and Seal”



If it’s worn beyond limits, an overhaul is in the works.   But a pack and seal is a middle of the road option for low time props. 



Phil



Sent from my iPhone



 	  Quote: 	
		   On Dec 28, 2020, at 10:03 PM, Rob Kochman <rv10rob(at)gmail.com> wrote:

 

 

 My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

 

 -Rob

 

 -- 

 Rob Kochman

 RV-10 Flying since March 2011

 Kirkland, WA

philperry9

Joined: 23 Nov 2011
Posts: 381

Posted: Mon Dec 28, 2020 9:23 pm Post subject: When to service the propeller?

I should have added this to my previous message.  Some of those seals have a limited shelf life (rubber or synthetics).  So they need to be replaced on a schedule once they begin to reach the end of their useful life. 

Phil

Sent from my iPhone

 	  Quote: 	
		   On Dec 28, 2020, at 10:13 PM, Phil Perry <philperry9(at)gmail.com> wrote:

 Since it’s experimental, you can send it to the prop shop to be disassembled and inspected.   If there is little wear, you can have them reassemble with new seals and grease.  “Pack and Seal”

 If it’s worn beyond limits, an overhaul is in the works.   But a pack and seal is a middle of the road option for low time props. 

 Phil

 Sent from my iPhone

> On Dec 28, 2020, at 10:03 PM, Rob Kochman <rv10rob(at)gmail.com> wrote:

> 

> 

> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

> 

> -Rob

> 

> -- 

> Rob Kochman

> RV-10 Flying since March 2011

> Kirkland, WA

Tim Olson

Joined: 25 Jan 2007
Posts: 2877

Posted: Mon Dec 28, 2020 9:25 pm Post subject: When to service the propeller?

Rob,

You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

But, I did have mine re-sealed a few years ago.  I am sure that your

prop will still be functioning fine a while from now, but, I'd say

plan on a 10 year at least.



I've had mine off a few times for various reasons.  Inside the

crank cavity into the prop hub, you've almost certainly got a lot of

gray paste build-up that happens over time.   I've cleaned mine

out whenever the prop has been off.  This winter I plan to get

the prop overhauled, and it will be interesting to hear how it

goes.  I agree that 6 years and 550 hours would seem pretty short.

To me it's like how Lycoming recommends an engine rebuild in 12 years

or 2000 hours.  But, there still is a point where an overhaul is due

and I think I'm there. I intended to do it when I replaced the engine

this summer, but this wasn't a good year for it $$$.



I have heard overhauls run $2500, but the place near me charges

$3000.  Would be nice to hear what kinds of quotes other people have

gotten, and where they recommend.

Tim

On 12/28/20 10:58 PM, Rob Kochman wrote:

 	  Quote: 	
		   My RV-10 has the standard Hartzell 2-blade constant speed prop, 

 purchased new. To this point, I've done nothing but lubricate and 

 inspect it annually, as well as file out nicks. I know Hartzell says 6 

 years for an overhaul, but given limited use (550 hours total time) and 

 the fact that it's always hangared, that seemed excessively 

 conservative. It's also not leaking any oil (still looks like new inside 

 the spinner). However, I'm now approaching 10 years, so curious to hear 

 what people recommend. Thanks!

 

 -Rob

 

 -- 

 Rob Kochman

 RV-10 Flying since March 2011

 Kirkland, WA

Lenny Iszak

Joined: 23 Mar 2008
Posts: 270

Posted: Mon Dec 28, 2020 9:51 pm Post subject: When to service the propeller?

I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

Lenny

 	  Quote: 	
		   On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

 Rob,

 You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

 But, I did have mine re-sealed a few years ago.  I am sure that your

 prop will still be functioning fine a while from now, but, I'd say

 plan on a 10 year at least.

 I've had mine off a few times for various reasons.  Inside the

 crank cavity into the prop hub, you've almost certainly got a lot of

 gray paste build-up that happens over time.   I've cleaned mine

 out whenever the prop has been off.  This winter I plan to get

 the prop overhauled, and it will be interesting to hear how it

 goes.  I agree that 6 years and 550 hours would seem pretty short.

 To me it's like how Lycoming recommends an engine rebuild in 12 years

 or 2000 hours.  But, there still is a point where an overhaul is due

 and I think I'm there. I intended to do it when I replaced the engine

 this summer, but this wasn't a good year for it $$$.

 I have heard overhauls run $2500, but the place near me charges

 $3000.  Would be nice to hear what kinds of quotes other people have

 gotten, and where they recommend.

 Tim

 On 12/28/20 10:58 PM, Rob Kochman wrote:

> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

> -Rob

> -- 

> Rob Kochman

> RV-10 Flying since March 2011

> Kirkland, WA

_________________
Lenny Iszak
Palm City, FL
2014 RV-10, N311LZ - 500 hrs

Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Tue Dec 29, 2020 4:12 am Post subject: When to service the propeller?

The main issue with props (assuming no bad nicks, etc.) is the life of 

the seals for the blades. It isn't just that they may start seeping oil. 

The more serious issue is their allowing moisture under the seal at the 

hub grooves.

You really don't want to have an overhaul done unless the blade has been 

filed enough to need reprofiling. An overhaul absolutely requires 

removal of a thin layer of aluminum, so that a prop's life can only take 

3, maybe 4 overhauls. Even on certified planes an inspect and reseal is 

perfectly legal.

I too believe than hangaring greatly increases prop life, except in 

corrosive/humid environments.



On 12/28/2020 10:50 PM, Lenny Iszak wrote:

 	  Quote: 	
		   

 

 I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

 The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

 

 Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

 

 Lenny

 

> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

>

> 

>

> Rob,

> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

> But, I did have mine re-sealed a few years ago.  I am sure that your

> prop will still be functioning fine a while from now, but, I'd say

> plan on a 10 year at least.

>

> I've had mine off a few times for various reasons.  Inside the

> crank cavity into the prop hub, you've almost certainly got a lot of

> gray paste build-up that happens over time.   I've cleaned mine

> out whenever the prop has been off.  This winter I plan to get

> the prop overhauled, and it will be interesting to hear how it

> goes.  I agree that 6 years and 550 hours would seem pretty short.

> To me it's like how Lycoming recommends an engine rebuild in 12 years

> or 2000 hours.  But, there still is a point where an overhaul is due

> and I think I'm there. I intended to do it when I replaced the engine

> this summer, but this wasn't a good year for it $$$.

>

> I have heard overhauls run $2500, but the place near me charges

> $3000.  Would be nice to hear what kinds of quotes other people have

> gotten, and where they recommend.

> Tim

> On 12/28/20 10:58 PM, Rob Kochman wrote:

>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

>> -Rob

>> -- 

>> Rob Kochman

>> RV-10 Flying since March 2011

>> Kirkland, WA

>

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Tue Dec 29, 2020 5:28 am Post subject: When to service the propeller?

As for the grease in the prop, you should use whatever the prop shop 

installed when it was last reassembled, and there should be a sticker 

identifying that grease. Most until recent years used Aeroshell 6.



On 12/28/2020 10:50 PM, Lenny Iszak wrote:

 	  Quote: 	
		   

 

 I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

 The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

 

 Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

 

 Lenny

 

> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

>

> 

>

> Rob,

> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

> But, I did have mine re-sealed a few years ago.  I am sure that your

> prop will still be functioning fine a while from now, but, I'd say

> plan on a 10 year at least.

>

> I've had mine off a few times for various reasons.  Inside the

> crank cavity into the prop hub, you've almost certainly got a lot of

> gray paste build-up that happens over time.   I've cleaned mine

> out whenever the prop has been off.  This winter I plan to get

> the prop overhauled, and it will be interesting to hear how it

> goes.  I agree that 6 years and 550 hours would seem pretty short.

> To me it's like how Lycoming recommends an engine rebuild in 12 years

> or 2000 hours.  But, there still is a point where an overhaul is due

> and I think I'm there. I intended to do it when I replaced the engine

> this summer, but this wasn't a good year for it $$$.

>

> I have heard overhauls run $2500, but the place near me charges

> $3000.  Would be nice to hear what kinds of quotes other people have

> gotten, and where they recommend.

> Tim

> On 12/28/20 10:58 PM, Rob Kochman wrote:

>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

>> -Rob

>> -- 

>> Rob Kochman

>> RV-10 Flying since March 2011

>> Kirkland, WA

>

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

Tim Olson

Joined: 25 Jan 2007
Posts: 2877

Posted: Tue Dec 29, 2020 7:26 am Post subject: When to service the propeller?

On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.

Tim



 	  Quote: 	
		   On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:

 

 

 

 As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.

 

> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

> 

> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

> Lenny

>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

>> 

>> 

>> 

>> Rob,

>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

>> But, I did have mine re-sealed a few years ago.  I am sure that your

>> prop will still be functioning fine a while from now, but, I'd say

>> plan on a 10 year at least.

>> 

>> I've had mine off a few times for various reasons.  Inside the

>> crank cavity into the prop hub, you've almost certainly got a lot of

>> gray paste build-up that happens over time.   I've cleaned mine

>> out whenever the prop has been off.  This winter I plan to get

>> the prop overhauled, and it will be interesting to hear how it

>> goes.  I agree that 6 years and 550 hours would seem pretty short.

>> To me it's like how Lycoming recommends an engine rebuild in 12 years

>> or 2000 hours.  But, there still is a point where an overhaul is due

>> and I think I'm there. I intended to do it when I replaced the engine

>> this summer, but this wasn't a good year for it $$$.

>> 

>> I have heard overhauls run $2500, but the place near me charges

>> $3000.  Would be nice to hear what kinds of quotes other people have

>> gotten, and where they recommend.

>> Tim

>> 

>> 

>> On 12/28/20 10:58 PM, Rob Kochman wrote:

>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

>>> -Rob

>>> -- 

>>> Rob Kochman

>>> RV-10 Flying since March 2011

>>> Kirkland, WA

>> 

>> 

>>

rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Tue Dec 29, 2020 7:53 am Post subject: When to service the propeller?

I was surprised with that as well when I had my prop serviced recently. �The shop included a tube of the new grease. ��I have yet to find a source for the new grease other than a prop shop. 

 

 

 Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather? ��With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection. 

 

 

 

 Get Outlook for iOS

 

  From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson <Tim(at)MyRV10.com>

 Sent: Tuesday, December 29, 2020 10:26:10 AM

 To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>

 Subject: Re: RV10-List: When to service the propeller? �

 

  --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com>

 

 On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.

 Tim

 

 > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:

 > 

 > --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com>

 > 

 > As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.

 > 

 >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

 >> --> RV10-List message posted by: Lenny Iszak <lenard(at)rapiddecision.com>

 >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

 >> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

 >> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

 >> Lenny

 >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

 >>> 

 >>> --> RV10-List message posted by: Tim Olson <Tim(at)MyRV10.com>

 >>> 

 >>> Rob,

 >>> You're not alone.� I am overdue on my Hartzell also.� Nearly 15 years.

 >>> But, I did have mine re-sealed a few years ago.� I am sure that your

 >>> prop will still be functioning fine a while from now, but, I'd say

 >>> plan on a 10 year at least.

 >>> 

 >>> I've had mine off a few times for various reasons.� Inside the

 >>> crank cavity into the prop hub, you've almost certainly got a lot of

 >>> gray paste build-up that happens over time.�� I've cleaned mine

 >>> out whenever the prop has been off.� This winter I plan to get

 >>> the prop overhauled, and it will be interesting to hear how it

 >>> goes.� I agree that 6 years and 550 hours would seem pretty short.

 >>> To me it's like how Lycoming recommends an engine rebuild in 12 years

 >>> or 2000 hours.� But, there still is a point where an overhaul is due

 >>> and I think I'm there. I intended to do it when I replaced the engine

 >>> this summer, but this wasn't a good year for it $$$.

 >>> 

 >>> I have heard overhauls run $2500, but the place near me charges

 >>> $3000.� Would be nice to hear what kinds of quotes other people have

 >>> gotten, and where they recommend.

 >>> Tim

 >>> 

 >>> 

 >>> On 12/28/20 10:58 PM, Rob Kochman wrote:

 >>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

 >>>> -Rob

 >>>> -- 

 >>>> Rob Kochman

 >>>> RV-10 Flying since March 2011

 >>>> Kirkland, WA

 >>> 

 >>> 

 >>> 

 > 

 > 

 >

_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

Tim Olson

Joined: 25 Jan 2007
Posts: 2877

Posted: Tue Dec 29, 2020 8:15 am Post subject: When to service the propeller?

I had that happen to me once where the grease broke down and the     thin more liquid

     portion separated out and leaked out.  Made me real irritated.

     I *think* it may be due to storing the grease in the gun under     pressure, with that

     spring pressing against the grease.  You don't see it happen with     fresh tubes

     sitting on shelves, as far as I've seen.  So I pull the springs back     all the way when

     I'm not using the gun.  It may be even better to just remove the     tube, but I hate

     it when the gun doesn't want to prime again.

     

     Does anyone know if pneumatic grease guns don't use springs, and     release pressure

     completely when not being used?  Or maybe the new lithium electric     ones?  I would

     be willing to spend $150 on a grease gun that would fully release     pressure on my

     grease tube, and always prime well for me.

     

     

     

     On 12/29/2020 9:53 AM, Bob Leffler       wrote:

     

      	  Quote: 	
		                                    I was surprised with that as well             when I had my prop serviced recently.  The shop included a             tube of the new grease.   I have yet to find a source for             the new grease other than a prop shop.           

           

           

           Anyone have a solution for             stopping the grease from breaking down and leaking from the             gun during hot weather?   With just six pumps per condition             inspection, it would be nice to use a tube on more than one             inspection.             

         

         

         

         Get Outlook             for iOS

       

              From:           owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)           <owner-rv10-list-server(at)matronics.com> (owner-rv10-list-server(at)matronics.com) on behalf of Tim           Olson <Tim(at)MyRV10.com> (Tim(at)MyRV10.com)

           Sent: Tuesday, December 29, 2020 10:26:10 AM

           To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)           <rv10-list(at)matronics.com> (rv10-list(at)matronics.com)

           Subject: Re: When to service the propeller?          

       

                    --> RV10-List message posted by:               Tim Olson <Tim(at)myrv10.com> (Tim(at)myrv10.com)

               

               On that note,I read recently that hartzell started using a               new grease not long ago. So if you have a new prop or get               an overhaul or reseal, make sure to verify the type of               grease because you may need to order that special type of               grease from there on.

               Tim

               

               > On Dec 29, 2020, at 7:45 AM, Kelly McMullen               <kellym(at)aviating.com> (kellym(at)aviating.com) wrote:

               > 

               > --> RV10-List message posted by: Kelly McMullen               <kellym(at)aviating.com> (kellym(at)aviating.com)

               > 

               > As for the grease in the prop, you should use               whatever the prop shop installed when it was last               reassembled, and there should be a sticker identifying               that grease. Most until recent years used Aeroshell 6.

               > 

               >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

               >> --> RV10-List message posted by: Lenny Iszak               <lenard(at)rapiddecision.com> (lenard(at)rapiddecision.com)

               >> I had mine (2009 prop with 700 hrs) overhauled a               few months ago at Palm Beach Aircraft Propeller, for $2845               + tax.

               >> The seals in it where in pretty bad shape, it was               covering my windshield with grease after every flight. A               pretty good sign that it needed some TLC.

               >> Btw, Hartzell recommends a new grease now, so if               you do get an overhaul, grab a couple of tubes from the               prop shop, as it’s otherwise unobtanium from the popular               aircraft parts stores.

               >> Lenny

               >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson               <Tim(at)MyRV10.com> (Tim(at)MyRV10.com) wrote:

               >>> 

               >>> --> RV10-List message posted by: Tim Olson               <Tim(at)MyRV10.com> (Tim(at)MyRV10.com)

               >>> 

               >>> Rob,

               >>> You're not alone.  I am overdue on my               Hartzell also.  Nearly 15 years.

               >>> But, I did have mine re-sealed a few years               ago.  I am sure that your

               >>> prop will still be functioning fine a while               from now, but, I'd say

               >>> plan on a 10 year at least.

               >>> 

               >>> I've had mine off a few times for various               reasons.  Inside the

               >>> crank cavity into the prop hub, you've almost               certainly got a lot of

               >>> gray paste build-up that happens over time.                 I've cleaned mine

               >>> out whenever the prop has been off.  This               winter I plan to get

               >>> the prop overhauled, and it will be               interesting to hear how it

               >>> goes.  I agree that 6 years and 550 hours               would seem pretty short.

               >>> To me it's like how Lycoming recommends an               engine rebuild in 12 years

               >>> or 2000 hours.  But, there still is a point               where an overhaul is due

               >>> and I think I'm there. I intended to do it               when I replaced the engine

               >>> this summer, but this wasn't a good year for               it $$$.

               >>> 

               >>> I have heard overhauls run $2500, but the               place near me charges

               >>> $3000.  Would be nice to hear what kinds of               quotes other people have

               >>> gotten, and where they recommend.

               >>> Tim

               >>> 

               >>> 

               >>> On 12/28/20 10:58 PM, Rob Kochman wrote:

               >>>> My RV-10 has the standard Hartzell               2-blade constant speed prop, purchased new. To this point,               I've done nothing but lubricate and inspect it annually,               as well as file out nicks. I know Hartzell says 6 years               for an overhaul, but given limited use (550 hours total               time) and the fact that it's always hangared, that seemed               excessively conservative. It's also not leaking any oil               (still looks like new inside the spinner). However, I'm               now approaching 10 years, so curious to hear what people               recommend. Thanks!

               >>>> -Rob

               >>>> -- 

               >>>> Rob Kochman

               >>>> RV-10 Flying since March 2011

               >>>> Kirkland, WA

               >>> 

               >>> 

               >>> 

               > 

               > 

               > 

               

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philperry9

Joined: 23 Nov 2011
Posts: 381

Posted: Tue Dec 29, 2020 11:58 am Post subject: When to service the propeller?

In Texas, we just keep the grease in the hangar fridge.  🤣.  Next to the cold beer. 





Sent from my iPhone



[quote] On Dec 29, 2020, at 9:20 AM, Tim Olson <Tim(at)myrv10.com> wrote:

 

  I had that happen to me once where the grease broke down and the thin more liquid

 portion separated out and leaked out.  Made me real irritated.

 I *think* it may be due to storing the grease in the gun under pressure, with that

 spring pressing against the grease.  You don't see it happen with fresh tubes

 sitting on shelves, as far as I've seen.  So I pull the springs back all the way when

 I'm not using the gun.  It may be even better to just remove the tube, but I hate

 it when the gun doesn't want to prime again.

 

 Does anyone know if pneumatic grease guns don't use springs, and release pressure

 completely when not being used?  Or maybe the new lithium electric ones?  I would

 be willing to spend $150 on a grease gun that would fully release pressure on my

 grease tube, and always prime well for me.

 

 

 

 On 12/29/2020 9:53 AM, Bob Leffler wrote:

> I was surprised with that as well when I had my prop serviced recently.  The shop included a tube of the new grease.   I have yet to find a source for the new grease other than a prop shop.

> 

> Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather?   With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection.

> 

> Get Outlook for iOS

> From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson <Tim(at)MyRV10.com>

> Sent: Tuesday, December 29, 2020 10:26:10 AM

> To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>

> Subject: Re: When to service the propeller?

>  

> 

> 

> On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.

> Tim

> 

> > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:

> > 

> > 

> > 

> > As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.

> > 

> >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

> >> 

> >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

> >> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

> >> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

> >> Lenny

> >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

> >>> 

> >>> 

> >>> 

> >>> Rob,

> >>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years

Bob Turner

Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA

Posted: Thu Dec 31, 2020 5:21 pm Post subject: Re: When to service the propeller?

I too had an oily liquid run out from a grease gun with Aeroshell 6 on a warm summer day. I cannot recall if I had stored it with the spring pulled back, or not. I did note that you can mix Aeroshell 6 with 5, if you placard the plane not to be operated in temperatures below some number that I forget. Also, like everyone else, I did a cursory search for the new recommended grease, and could not find any retail source. I did find that it cannot be mixed with Aeroshell. BTW, the cautions not to mix incompatible greases should be taken seriously. I still recall Alaskan Airlines loosing an MD80 just offshore from LAX after they had mixed greases on the horizontal stabilizer jack screw.

_________________
Bob Turner
RV-10 QB

Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Thu Dec 31, 2020 5:59 pm Post subject: When to service the propeller?

I know it goes against the grain of CSOB pilots, but a tube of aeroshell 6 is what? Maybe 10-12 bucks, 	  Quote: 	
		  Sent from my TRS-80 Model 100 	






On Thu, Dec 31, 2020 at 6:25 PM Bob Turner <bobturner(at)alum.rpi.edu (bobturner(at)alum.rpi.edu)> wrote:



 	  Quote: 	
		  --> RV10-List message posted by: "Bob Turner" <bobturner(at)alum.rpi.edu (bobturner(at)alum.rpi.edu)>

 

 I too had an oily liquid run out from a grease gun with Aeroshell 6 on a warm summer day. I cannot recall if I had stored it with the spring pulled back, or not. I did note that you can mix Aeroshell 6 with 5, if you placard the plane not to be operated in temperatures below some number that I forget. Also, like everyone else, I did a cursory search for the new recommended grease, and could not find any retail source. I did find that it cannot be mixed with Aeroshell. BTW, the cautions not to mix incompatible greases should be taken seriously. I still recall Alaskan Airlines loosing an MD80 just offshore from LAX after they had mixed greases on the horizontal stabilizer jack screw.

 

 --------

 Bob Turner

 RV-10 QB

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=499934#499934

 

 

 

 

 

 

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Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Sun Jan 03, 2021 3:21 am Post subject: When to service the propeller?

Here’s a photo of the new grease Hartzell is now using. ��It appears that it’s only available through Hartzell authorized service centers. �The shop I used wanted $20~$25 per tube. �

 

 

 It would be nice if one of the major retailers would start stocking. �I suspect it may take some time for them to begin aware of the change and demand to warrant stocking. 

 

 

 If anyone finds alternate sources, please let the list know. 

 

 

 Bob

 

 

 

 

 [img]cid:83991414-D473-4DEA-8AC3-49B70D66673A[/img]

 

 Get Outlook for iOS

 

 

  From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Bob Leffler <bob(at)thelefflers.com>

 Sent: Tuesday, December 29, 2020 10:53:09 AM

 To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>

 Subject: Re: RV10-List: When to service the propeller? �

 

    I was surprised with that as well when I had my prop serviced recently. �The shop included a tube of the new grease. ��I have yet to find a source for the new grease other than a prop shop. 

 

 

 Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather? ��With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection. 

 

 

 

 Get Outlook for iOS

 

  From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson <Tim(at)MyRV10.com>

 Sent: Tuesday, December 29, 2020 10:26:10 AM

 To: rv10-list(at)matronics.com <rv10-list(at)matronics.com>

 Subject: Re: RV10-List: When to service the propeller? �

 

  --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com>

 

 On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.

 Tim

 

 > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:

 > 

 > --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com>

 > 

 > As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.

 > 

 >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

 >> --> RV10-List message posted by: Lenny Iszak <lenard(at)rapiddecision.com>

 >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

 >> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

 >> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

 >> Lenny

 >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

 >>> 

 >>> --> RV10-List message posted by: Tim Olson <Tim(at)MyRV10.com>

 >>> 

 >>> Rob,

 >>> You're not alone.� I am overdue on my Hartzell also.� Nearly 15 years.

 >>> But, I did have mine re-sealed a few years ago.� I am sure that your

 >>> prop will still be functioning fine a while from now, but, I'd say

 >>> plan on a 10 year at least.

 >>> 

 >>> I've had mine off a few times for various reasons.� Inside the

 >>> crank cavity into the prop hub, you've almost certainly got a lot of

 >>> gray paste build-up that happens over time.�� I've cleaned mine

 >>> out whenever the prop has been off.� This winter I plan to get

 >>> the prop overhauled, and it will be interesting to hear how it

 >>> goes.� I agree that 6 years and 550 hours would seem pretty short.

 >>> To me it's like how Lycoming recommends an engine rebuild in 12 years

 >>> or 2000 hours.� But, there still is a point where an overhaul is due

 >>> and I think I'm there. I intended to do it when I replaced the engine

 >>> this summer, but this wasn't a good year for it $$$.

 >>> 

 >>> I have heard overhauls run $2500, but the place near me charges

 >>> $3000.� Would be nice to hear what kinds of quotes other people have

 >>> gotten, and where they recommend.

 >>> Tim

 >>> 

 >>> 

 >>> On 12/28/20 10:58 PM, Rob Kochman wrote:

 >>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

 >>>> -Rob

 >>>> -- 

 >>>> Rob Kochman

 >>>> RV-10 Flying since March 2011

 >>>> Kirkland, WA

 >>> 

 >>> 

 >>> 

 > 

 > 

 >

Image.jpeg

Description:

Filesize:

2.45 MB

Viewed:

15500 Time(s)

_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Sun Jan 03, 2021 6:31 am Post subject: When to service the propeller?

The only one I found is:

https://www.skygeek.com/nyco-gn-148-blue-grease-400-gram-cartridge.html

$23

On 1/3/2021 4:20 AM, Bob Leffler wrote:

 	  Quote: 	
		   Here’s a photo of the new grease Hartzell is now using.   It appears 

 that it’s only available through Hartzell authorized service centers. 

   The shop I used wanted $20~$25 per tube.

 

 It would be nice if one of the major retailers would start stocking.  I 

 suspect it may take some time for them to begin aware of the change and 

 demand to warrant stocking.

 

 If anyone finds alternate sources, please let the list know.

 

 Bob

 

 Image.jpeg

 Get Outlook for iOS <https://aka.ms/o0ukef>

 ------------------------------------------------------------------------

 *From:* owner-rv10-list-server(at)matronics.com 

 <owner-rv10-list-server(at)matronics.com> on behalf of Bob Leffler 

 <bob(at)thelefflers.com>

 *Sent:* Tuesday, December 29, 2020 10:53:09 AM

 *To:* rv10-list(at)matronics.com <rv10-list(at)matronics.com>

 *Subject:* Re: When to service the propeller?

 I was surprised with that as well when I had my prop serviced recently. 

   The shop included a tube of the new grease.   I have yet to find a 

 source for the new grease other than a prop shop.

 

 Anyone have a solution for stopping the grease from breaking down and 

 leaking from the gun during hot weather?   With just six pumps per 

 condition inspection, it would be nice to use a tube on more than one 

 inspection.

 

 Get Outlook for iOS <https://aka.ms/o0ukef>

 ------------------------------------------------------------------------

 *From:* owner-rv10-list-server(at)matronics.com 

 <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson 

 <Tim(at)MyRV10.com>

 *Sent:* Tuesday, December 29, 2020 10:26:10 AM

 *To:* rv10-list(at)matronics.com <rv10-list(at)matronics.com>

 *Subject:* Re: When to service the propeller?

 

 

 On that note,I read recently that hartzell started using a new grease 

 not long ago. So if you have a new prop or get an overhaul or reseal, 

 make sure to verify the type of grease because you may need to order 

 that special type of grease from there on.

 Tim

 

> On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:

> 

> 

> 

> As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.

> 

>> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

>> 

>> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

>> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

>> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

>> Lenny

>>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

>>> 

>>> 

>>> 

>>> Rob,

>>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

>>> But, I did have mine re-sealed a few years ago.  I am sure that your

>>> prop will still be functioning fine a while from now, but, I'd say

>>> plan on a 10 year at least.

>>> 

>>> I've had mine off a few times for various reasons.  Inside the

>>> crank cavity into the prop hub, you've almost certainly got a lot of

>>> gray paste build-up that happens over time.   I've cleaned mine

>>> out whenever the prop has been off.  This winter I plan to get

>>> the prop overhauled, and it will be interesting to hear how it

>>> goes.  I agree that 6 years and 550 hours would seem pretty short.

>>> To me it's like how Lycoming recommends an engine rebuild in 12 years

>>> or 2000 hours.  But, there still is a point where an overhaul is due

>>> and I think I'm there. I intended to do it when I replaced the engine

>>> this summer, but this wasn't a good year for it $$$.

>>> 

>>> I have heard overhauls run $2500, but the place near me charges

>>> $3000.  Would be nice to hear what kinds of quotes other people have

>>> gotten, and where they recommend.

>>> Tim

>>> 

>>> 

>>> On 12/28/20 10:58 PM, Rob Kochman wrote:

>>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed 

 excessively conservative. It's also not leaking any oil (still looks 

 like new inside the spinner). However, I'm now approaching 10 years, so 

 curious to hear what people recommend. Thanks!

>>>> -Rob

>>>> -- 

>>>> Rob Kochman

>>>> RV-10 Flying since March 2011

>>>> Kirkland, WA

>>> 

>>> 

>>> 

> 

> 

> 

 

 <http://www.matronics.com/Navigator?RV10-List>

 <http://www.matronics.com/contribution>

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

wgreenley

Joined: 09 Jan 2010
Posts: 100
Location: Dowagiac, MI

Posted: Sun Jan 03, 2021 9:24 am Post subject: When to service the propeller?

The manufacturer describes is as follows: (interesting that they list it as a wheel bearing grease)

The newest high-temperature range grease for longer wheel bearing lifeDESCRIPTION

NYCO GREASE GN 3058 is a white lithium complex thickened synthetic grease designed to operate in salty and humid environment in a very wide temperature range going from -54°C to +175°C.APPLICATIONSWheels
Landing gears
Heavy loaded systems
MAIN BENEFITSHigh load carrying capabilities,
Outstanding resistance to water washout and to high temperatures,
Very good protection against corrosion even in the presence of salt water.



On Sun, Jan 3, 2021 at 10:47 AM Lenard Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)> wrote:



 	  Quote: 	
		  This is what they put in my prop:

 

 

 

 

 

 Lenny

 

 

 > On Jan 3, 2021, at 9:54 AM, Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:

 > 

 > --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

 > 

 > The only one I found is:

 > https://www.skygeek.com/nyco-gn-148-blue-grease-400-gram-cartridge.html

 > $23

 >> On 1/3/2021 4:20 AM, Bob Leffler wrote:

 >> Here’s a photo of the new grease Hartzell is now using.   It appears that it’s only available through Hartzell authorized service centers.   The shop I used wanted $20~$25 per tube.

 >> It would be nice if one of the major retailers would start stocking.  I suspect it may take some time for them to begin aware of the change and demand to warrant stocking.

 >> If anyone finds alternate sources, please let the list know.

 >> Bob

 >> Image.jpeg

 >> Get Outlook for iOS <https://aka.ms/o0ukef>

 >> ------------------------------------------------------------------------

 >> *From:* owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) <owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)> on behalf of Bob Leffler <bob(at)thelefflers.com (bob(at)thelefflers.com)>

 >> *Sent:* Tuesday, December 29, 2020 10:53:09 AM

 >> *To:* rv10-list(at)matronics.com (rv10-list(at)matronics.com) <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>

 >> *Subject:* Re: When to service the propeller?

 >> I was surprised with that as well when I had my prop serviced recently.   The shop included a tube of the new grease.   I have yet to find a source for the new grease other than a prop shop.

 >> Anyone have a solution for stopping the grease from breaking down and leaking from the gun during hot weather?   With just six pumps per condition inspection, it would be nice to use a tube on more than one inspection.

 >> Get Outlook for iOS <https://aka.ms/o0ukef>

 >> ------------------------------------------------------------------------

 >> *From:* owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) <owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)> on behalf of Tim Olson <Tim(at)MyRV10.com>

 >> *Sent:* Tuesday, December 29, 2020 10:26:10 AM

 >> *To:* rv10-list(at)matronics.com (rv10-list(at)matronics.com) <rv10-list(at)matronics.com (rv10-list(at)matronics.com)>

 >> *Subject:* Re: When to service the propeller?

 >> --> RV10-List message posted by: Tim Olson <Tim(at)myrv10.com (Tim(at)myrv10.com)>

 >> On that note,I read recently that hartzell started using a new grease not long ago. So if you have a new prop or get an overhaul or reseal, make sure to verify the type of grease because you may need to order that special type of grease from there on.

 >> Tim

 >>>> On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)> wrote:

 >>> --> RV10-List message posted by: Kelly McMullen <kellym(at)aviating.com (kellym(at)aviating.com)>

 >>> As for the grease in the prop, you should use whatever the prop shop installed when it was last reassembled, and there should be a sticker identifying that grease. Most until recent years used Aeroshell 6.

 >>>> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

 >>>> --> RV10-List message posted by: Lenny Iszak <lenard(at)rapiddecision.com (lenard(at)rapiddecision.com)>

 >>>> I had mine (2009 prop with 700 hrs) overhauled a few months ago at Palm Beach Aircraft Propeller, for $2845 + tax.

 >>>> The seals in it where in pretty bad shape, it was covering my windshield with grease after every flight. A pretty good sign that it needed some TLC.

 >>>> Btw, Hartzell recommends a new grease now, so if you do get an overhaul, grab a couple of tubes from the prop shop, as it’s otherwise unobtanium from the popular aircraft parts stores.

 >>>> Lenny

 >>>>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

 >>>>> --> RV10-List message posted by: Tim Olson <Tim(at)MyRV10.com>

 >>>>> Rob,

 >>>>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

 >>>>> But, I did have mine re-sealed a few years ago.  I am sure that your

 >>>>> prop will still be functioning fine a while from now, but, I'd say

 >>>>> plan on a 10 year at least.

 >>>>> I've had mine off a few times for various reasons.  Inside the

 >>>>> crank cavity into the prop hub, you've almost certainly got a lot of

 >>>>> gray paste build-up that happens over time.   I've cleaned mine

 >>>>> out whenever the prop has been off.  This winter I plan to get

 >>>>> the prop overhauled, and it will be interesting to hear how it

 >>>>> goes.  I agree that 6 years and 550 hours would seem pretty short.

 >>>>> To me it's like how Lycoming recommends an engine rebuild in 12 years

 >>>>> or 2000 hours.  But, there still is a point where an overhaul is due

 >>>>> and I think I'm there. I intended to do it when I replaced the engine

 >>>>> this summer, but this wasn't a good year for it $$$.

 >>>>> I have heard overhauls run $2500, but the place near me charges

 >>>>> $3000.  Would be nice to hear what kinds of quotes other people have

 >>>>> gotten, and where they recommend.

 >>>>> Tim

 >>>>> On 12/28/20 10:58 PM, Rob Kochman wrote:

 >>>>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, purchased new. To this point, I've done nothing but lubricate and inspect it annually, as well as file out nicks. I know Hartzell says 6 years for an overhaul, but given limited use (550 hours  total time) and the fact that it's always hangared, that seemed 

 >> excessively conservative. It's also not leaking any oil (still looks like new inside the spinner). However, I'm now approaching 10 years, so curious to hear what people recommend. Thanks!

 >>>>>> -Rob

 >>>>>> -- 

 >>>>>> Rob Kochman

 >>>>>> RV-10 Flying since March 2011

 >>>>>> Kirkland, WA

 >> <http://www.matronics.com/Navigator?RV10-List>

 >> <http://www.matronics.com/contribution>

 ===========

 ===========

 ===========

 ===========

 ===========

 > 

 > 

 >

TimRVator(at)comcast.net
Guest

Posted: Sun Jan 03, 2021 3:03 pm Post subject: When to service the propeller?

 	  Quote: 	
		   Anyone have a solution for stopping the grease from breaking down and 

 leaking from the gun during hot weather?   With just six pumps per 

 condition inspection, it would be nice to use a tube on more than one 

 inspection. 


	


On my grease gun, I can pull the T handle all the way back, rotate the 

handle (takes some trial and error) to find the T handle orientation 

where the handle stays pulled out.  This keeps the grease from being 

under constant spring pressure, which helps prevent the oil from 

separating from the wax (on Aeroshell 6).



BTW, Aeroshell now extends the shelf life of Aeroshell 6 if unopened and 

stored at constant temp:

https://jota.net.pl/wp-content/uploads/2020/03/Change-of-AeroShell-Grease-Shelf-Life-12062019.pdf



-- 

Tim Lewis -- HEF (Manassas, VA)

CFI, A&P

RV-6A N47TD -- 1104 hrs - sold

RV-10 N31TD -- 1200 hrs



Bob Leffler wrote on 12/29/2020 10:53 AM:

 	  Quote: 	
		   I was surprised with that as well when I had my prop serviced 

 recently.  The shop included a tube of the new grease.   I have yet to 

 find a source for the new grease other than a prop shop.



 Anyone have a solution for stopping the grease from breaking down and 

 leaking from the gun during hot weather?   With just six pumps per 

 condition inspection, it would be nice to use a tube on more than one 

 inspection.



 Get Outlook for iOS <https://aka.ms/o0ukef>

 ------------------------------------------------------------------------

 *From:* owner-rv10-list-server(at)matronics.com 

 <owner-rv10-list-server(at)matronics.com> on behalf of Tim Olson 

 <Tim(at)MyRV10.com>

 *Sent:* Tuesday, December 29, 2020 10:26:10 AM

 *To:* rv10-list(at)matronics.com <rv10-list(at)matronics.com>

 *Subject:* Re: When to service the propeller?

 



 On that note,I read recently that hartzell started using a new grease 

 not long ago. So if you have a new prop or get an overhaul or reseal, 

 make sure to verify the type of grease because you may need to order 

 that special type of grease from there on.

 Tim



 > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym(at)aviating.com> wrote:

 >

 > 

 >

 > As for the grease in the prop, you should use whatever the prop shop 

 installed when it was last reassembled, and there should be a sticker 

 identifying that grease. Most until recent years used Aeroshell 6.

 >

 >> On 12/28/2020 10:50 PM, Lenny Iszak wrote:

 >> 

 >> I had mine (2009 prop with 700 hrs) overhauled a few months ago at 

 Palm Beach Aircraft Propeller, for $2845 + tax.

 >> The seals in it where in pretty bad shape, it was covering my 

 windshield with grease after every flight. A pretty good sign that it 

 needed some TLC.

 >> Btw, Hartzell recommends a new grease now, so if you do get an 

 overhaul, grab a couple of tubes from the prop shop, as it’s otherwise 

 unobtanium from the popular aircraft parts stores.

 >> Lenny

 >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim(at)MyRV10.com> wrote:

 >>>

 >>> 

 >>>

 >>> Rob,

 >>> You're not alone.  I am overdue on my Hartzell also.  Nearly 15 years.

 >>> But, I did have mine re-sealed a few years ago.  I am sure that your

 >>> prop will still be functioning fine a while from now, but, I'd say

 >>> plan on a 10 year at least.

 >>>

 >>> I've had mine off a few times for various reasons.  Inside the

 >>> crank cavity into the prop hub, you've almost certainly got a lot of

 >>> gray paste build-up that happens over time. I've cleaned mine

 >>> out whenever the prop has been off.  This winter I plan to get

 >>> the prop overhauled, and it will be interesting to hear how it

 >>> goes.  I agree that 6 years and 550 hours would seem pretty short.

 >>> To me it's like how Lycoming recommends an engine rebuild in 12 years

 >>> or 2000 hours.  But, there still is a point where an overhaul is due

 >>> and I think I'm there. I intended to do it when I replaced the engine

 >>> this summer, but this wasn't a good year for it $$$.

 >>>

 >>> I have heard overhauls run $2500, but the place near me charges

 >>> $3000.  Would be nice to hear what kinds of quotes other people have

 >>> gotten, and where they recommend.

 >>> Tim

 >>>

 >>>

 >>> On 12/28/20 10:58 PM, Rob Kochman wrote:

 >>>> My RV-10 has the standard Hartzell 2-blade constant speed prop, 

 purchased new. To this point, I've done nothing but lubricate and 

 inspect it annually, as well as file out nicks. I know Hartzell says 6 

 years for an overhaul, but given limited use (550 hours total time) 

 and the fact that it's always hangared, that seemed excessively 

 conservative. It's also not leaking any oil (still looks like new 

 inside the spinner). However, I'm now approaching 10 years, so curious 

 to hear what people recommend. Thanks!

 >>>> -Rob

 >>>> --

 >>>> Rob Kochman

 >>>> RV-10 Flying since March 2011

 >>>> Kirkland, WA

 >>>

 >>>

 >>>

 >

 >

 >



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