Today's Message Index:
----------------------
1. 04:12 AM - Re: When to service the propeller? (Kelly McMullen)
2. 05:28 AM - Re: When to service the propeller? (Kelly McMullen)
3. 07:26 AM - Re: When to service the propeller? (Tim Olson)
4. 07:53 AM - Re: When to service the propeller? (Bob Leffler)
5. 08:15 AM - Re: When to service the propeller? (Tim Olson)
6. 11:58 AM - Re: When to service the propeller? (Phil Perry)
Message 1
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| Subject: | Re: 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:
>
> 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 its otherwise unobtanium from the popular
aircraft parts stores.
>
> Lenny
>
>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim@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
>>
>>
>>
>
>
>
>
>
Message 2
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| Subject: | Re: 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:
>
> 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 its otherwise unobtanium from the popular
aircraft parts stores.
>
> Lenny
>
>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim@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
>>
>>
>>
>
>
>
>
>
Message 3
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| 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@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 its otherwise unobtanium from the popular
aircraft parts stores.
>> Lenny
>>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim@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
>>>
>>>
>>>
>
>
>
Message 4
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| Subject: | Re: When to service the propeller? |
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| Subject: | Re: 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:
> 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@matronics.com
> <owner-rv10-list-server@matronics.com> on behalf of Tim Olson
> <Tim@MyRV10.com>
> *Sent:* Tuesday, December 29, 2020 10:26:10 AM
> *To:* rv10-list@matronics.com <rv10-list@matronics.com>
> *Subject:* Re: RV10-List: 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@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 its otherwise
> unobtanium from the popular aircraft parts stores.
> >> Lenny
> >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim@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>
>
>
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| Subject: | Re: When to service the propeller? |
In Texas, we just keep the grease in the hangar fridge. =F0=9F=A4=A3. Next
to the cold beer.
Sent from my iPhone
> On Dec 29, 2020, at 9:20 AM, Tim Olson <Tim@myrv10.com> wrote:
>
> =EF=BB 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, w
ith that
> spring pressing against the grease. You don't see it happen with fresh tu
bes
> sitting on shelves, as far as I've seen. So I pull the springs back all t
he 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 p
ressure
> 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. T
he 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 lea
king from the gun during hot weather? With just six pumps per condition in
spection, it would be nice to use a tube on more than one inspection.
>>
>> Get Outlook for iOS
>> From: owner-rv10-list-server@matronics.com <owner-rv10-list-server@matron
ics.com> on behalf of Tim Olson <Tim@MyRV10.com>
>> Sent: Tuesday, December 29, 2020 10:26:10 AM
>> To: rv10-list@matronics.com <rv10-list@matronics.com>
>> Subject: Re: RV10-List: 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 typ
e of grease from there on.
>> Tim
>>
>> > On Dec 29, 2020, at 7:45 AM, Kelly McMullen <kellym@aviating.com> wrote
:
>> >
ng.com>
>> >
>> > As for the grease in the prop, you should use whatever the prop shop in
stalled when it was last reassembled, and there should be a sticker identify
ing 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 Pal
m Beach Aircraft Propeller, for $2845 + tax.
>> >> The seals in it where in pretty bad shape, it was covering my windshie
ld with grease after every flight. A pretty good sign that it needed some TL
C.
>> >> Btw, Hartzell recommends a new grease now, so if you do get an overhau
l, grab a couple of tubes from the prop shop, as it=99s otherwise unob
tanium from the popular aircraft parts stores.
>> >> Lenny
>> >>>> On Dec 29, 2020, at 12:24 AM, Tim Olson <Tim@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, purc
hased new. To this point, I've done nothing but lubricate and inspect it ann
ually, as well as file out nicks. I know Hartzell says 6 years for an overha
ul, but given limited use (550 hours total time) and the fact that it's alwa
ys 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
>> >>>
>> >>>
>> >>>
>> >
>> >
>> >
>>
>> FAQ,
>> href="http://www.matronics.com/Navigator?RV10-List" moz-do-not-send="
true">http://www.matronics.com/Navigator?RV10-List
>> moz-do-not-send="true">http://forums.matronics.com
>> moz-do-not-send="true">http://wiki.matronics.com
>> href="http://www.matronics.com/contribution" moz-do-not-send="true">h
ttp://www.matronics.com/contribution
>>
>>
>>
>
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