---------------------------------------------------------- RV10-List Digest Archive --- Total Messages Posted Tue 12/29/20: 6 ---------------------------------------------------------- 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 _____________________________________ Time: 04:12:30 AM PST US Subject: Re: RV10-List: When to service the propeller? From: Kelly McMullen 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 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 _____________________________________ Time: 05:28:22 AM PST US Subject: Re: RV10-List: When to service the propeller? From: Kelly McMullen 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 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 _____________________________________ Time: 07:26:47 AM PST US From: Tim Olson 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 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 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 _____________________________________ Time: 07:53:30 AM PST US From: Bob Leffler Subject: Re: RV10-List: When to service the propeller? SSB3YXMgc3VycHJpc2VkIHdpdGggdGhhdCBhcyB3ZWxsIHdoZW4gSSBoYWQgbXkgcHJvcCBzZXJ2 aWNlZCByZWNlbnRseS4gIFRoZSBzaG9wIGluY2x1ZGVkIGEgdHViZSBvZiB0aGUgbmV3IGdyZWFz ZS4gICBJIGhhdmUgeWV0IHRvIGZpbmQgYSBzb3VyY2UgZm9yIHRoZSBuZXcgZ3JlYXNlIG90aGVy IHRoYW4gYSBwcm9wIHNob3AuDQoNCkFueW9uZSBoYXZlIGEgc29sdXRpb24gZm9yIHN0b3BwaW5n IHRoZSBncmVhc2UgZnJvbSBicmVha2luZyBkb3duIGFuZCBsZWFraW5nIGZyb20gdGhlIGd1biBk dXJpbmcgaG90IHdlYXRoZXI/ICAgV2l0aCBqdXN0IHNpeCBwdW1wcyBwZXIgY29uZGl0aW9uIGlu c3BlY3Rpb24sIGl0IHdvdWxkIGJlIG5pY2UgdG8gdXNlIGEgdHViZSBvbiBtb3JlIHRoYW4gb25l IGluc3BlY3Rpb24uDQoNCkdldCBPdXRsb29rIGZvciBpT1M8aHR0cHM6Ly9ha2EubXMvbzB1a2Vm Pg0KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCkZyb206IG93bmVyLXJ2MTAtbGlz dC1zZXJ2ZXJAbWF0cm9uaWNzLmNvbSA8b3duZXItcnYxMC1saXN0LXNlcnZlckBtYXRyb25pY3Mu Y29tPiBvbiBiZWhhbGYgb2YgVGltIE9sc29uIDxUaW1ATXlSVjEwLmNvbT4NClNlbnQ6IFR1ZXNk YXksIERlY2VtYmVyIDI5LCAyMDIwIDEwOjI2OjEwIEFNDQpUbzogcnYxMC1saXN0QG1hdHJvbmlj cy5jb20gPHJ2MTAtbGlzdEBtYXRyb25pY3MuY29tPg0KU3ViamVjdDogUmU6IFJWMTAtTGlzdDog V2hlbiB0byBzZXJ2aWNlIHRoZSBwcm9wZWxsZXI/DQoNCi0tPiBSVjEwLUxpc3QgbWVzc2FnZSBw b3N0ZWQgYnk6IFRpbSBPbHNvbiA8VGltQG15cnYxMC5jb20+DQoNCk9uIHRoYXQgbm90ZSxJIHJl YWQgcmVjZW50bHkgdGhhdCBoYXJ0emVsbCBzdGFydGVkIHVzaW5nIGEgbmV3IGdyZWFzZSBub3Qg bG9uZyBhZ28uIFNvIGlmIHlvdSBoYXZlIGEgbmV3IHByb3Agb3IgZ2V0IGFuIG92ZXJoYXVsIG9y IHJlc2VhbCwgbWFrZSBzdXJlIHRvIHZlcmlmeSB0aGUgdHlwZSBvZiBncmVhc2UgYmVjYXVzZSB5 b3UgbWF5IG5lZWQgdG8gb3JkZXIgdGhhdCBzcGVjaWFsIHR5cGUgb2YgZ3JlYXNlIGZyb20gdGhl cmUgb24uDQpUaW0NCg0KPiBPbiBEZWMgMjksIDIwMjAsIGF0IDc6NDUgQU0sIEtlbGx5IE1jTXVs bGVuIDxrZWxseW1AYXZpYXRpbmcuY29tPiB3cm90ZToNCj4NCj4g77u/LS0+IFJWMTAtTGlzdCBt ZXNzYWdlIHBvc3RlZCBieTogS2VsbHkgTWNNdWxsZW4gPGtlbGx5bUBhdmlhdGluZy5jb20+DQo+ DQo+IEFzIGZvciB0aGUgZ3JlYXNlIGluIHRoZSBwcm9wLCB5b3Ugc2hvdWxkIHVzZSB3aGF0ZXZl ciB0aGUgcHJvcCBzaG9wIGluc3RhbGxlZCB3aGVuIGl0IHdhcyBsYXN0IHJlYXNzZW1ibGVkLCBh bmQgdGhlcmUgc2hvdWxkIGJlIGEgc3RpY2tlciBpZGVudGlmeWluZyB0aGF0IGdyZWFzZS4gTW9z dCB1bnRpbCByZWNlbnQgeWVhcnMgdXNlZCBBZXJvc2hlbGwgNi4NCj4NCj4+IE9uIDEyLzI4LzIw MjAgMTA6NTAgUE0sIExlbm55IElzemFrIHdyb3RlOg0KPj4gLS0+IFJWMTAtTGlzdCBtZXNzYWdl IHBvc3RlZCBieTogTGVubnkgSXN6YWsgPGxlbmFyZEByYXBpZGRlY2lzaW9uLmNvbT4NCj4+IEkg aGFkIG1pbmUgKDIwMDkgcHJvcCB3aXRoIDcwMCBocnMpIG92ZXJoYXVsZWQgYSBmZXcgbW9udGhz IGFnbyBhdCBQYWxtIEJlYWNoIEFpcmNyYWZ0IFByb3BlbGxlciwgZm9yICQyODQ1ICsgdGF4Lg0K Pj4gVGhlIHNlYWxzIGluIGl0IHdoZXJlIGluIHByZXR0eSBiYWQgc2hhcGUsIGl0IHdhcyBjb3Zl cmluZyBteSB3aW5kc2hpZWxkIHdpdGggZ3JlYXNlIGFmdGVyIGV2ZXJ5IGZsaWdodC4gQSBwcmV0 dHkgZ29vZCBzaWduIHRoYXQgaXQgbmVlZGVkIHNvbWUgVExDLg0KPj4gQnR3LCBIYXJ0emVsbCBy ZWNvbW1lbmRzIGEgbmV3IGdyZWFzZSBub3csIHNvIGlmIHlvdSBkbyBnZXQgYW4gb3ZlcmhhdWws IGdyYWIgYSBjb3VwbGUgb2YgdHViZXMgZnJvbSB0aGUgcHJvcCBzaG9wLCBhcyBpdOKAmXMgb3Ro ZXJ3aXNlIHVub2J0YW5pdW0gZnJvbSB0aGUgcG9wdWxhciBhaXJjcmFmdCBwYXJ0cyBzdG9yZXMu DQo+PiBMZW5ueQ0KPj4+PiBPbiBEZWMgMjksIDIwMjAsIGF0IDEyOjI0IEFNLCBUaW0gT2xzb24g PFRpbUBNeVJWMTAuY29tPiB3cm90ZToNCj4+Pg0KPj4+IC0tPiBSVjEwLUxpc3QgbWVzc2FnZSBw b3N0ZWQgYnk6IFRpbSBPbHNvbiA8VGltQE15UlYxMC5jb20+DQo+Pj4NCj4+PiBSb2IsDQo+Pj4g WW91J3JlIG5vdCBhbG9uZS4gIEkgYW0gb3ZlcmR1ZSBvbiBteSBIYXJ0emVsbCBhbHNvLiAgTmVh cmx5IDE1IHllYXJzLg0KPj4+IEJ1dCwgSSBkaWQgaGF2ZSBtaW5lIHJlLXNlYWxlZCBhIGZldyB5 ZWFycyBhZ28uICBJIGFtIHN1cmUgdGhhdCB5b3VyDQo+Pj4gcHJvcCB3aWxsIHN0aWxsIGJlIGZ1 bmN0aW9uaW5nIGZpbmUgYSB3aGlsZSBmcm9tIG5vdywgYnV0LCBJJ2Qgc2F5DQo+Pj4gcGxhbiBv biBhIDEwIHllYXIgYXQgbGVhc3QuDQo+Pj4NCj4+PiBJJ3ZlIGhhZCBtaW5lIG9mZiBhIGZldyB0 aW1lcyBmb3IgdmFyaW91cyByZWFzb25zLiAgSW5zaWRlIHRoZQ0KPj4+IGNyYW5rIGNhdml0eSBp bnRvIHRoZSBwcm9wIGh1YiwgeW91J3ZlIGFsbW9zdCBjZXJ0YWlubHkgZ290IGEgbG90IG9mDQo+ Pj4gZ3JheSBwYXN0ZSBidWlsZC11cCB0aGF0IGhhcHBlbnMgb3ZlciB0aW1lLiAgIEkndmUgY2xl YW5lZCBtaW5lDQo+Pj4gb3V0IHdoZW5ldmVyIHRoZSBwcm9wIGhhcyBiZWVuIG9mZi4gIFRoaXMg d2ludGVyIEkgcGxhbiB0byBnZXQNCj4+PiB0aGUgcHJvcCBvdmVyaGF1bGVkLCBhbmQgaXQgd2ls bCBiZSBpbnRlcmVzdGluZyB0byBoZWFyIGhvdyBpdA0KPj4+IGdvZXMuICBJIGFncmVlIHRoYXQg NiB5ZWFycyBhbmQgNTUwIGhvdXJzIHdvdWxkIHNlZW0gcHJldHR5IHNob3J0Lg0KPj4+IFRvIG1l IGl0J3MgbGlrZSBob3cgTHljb21pbmcgcmVjb21tZW5kcyBhbiBlbmdpbmUgcmVidWlsZCBpbiAx MiB5ZWFycw0KPj4+IG9yIDIwMDAgaG91cnMuICBCdXQsIHRoZXJlIHN0aWxsIGlzIGEgcG9pbnQg d2hlcmUgYW4gb3ZlcmhhdWwgaXMgZHVlDQo+Pj4gYW5kIEkgdGhpbmsgSSdtIHRoZXJlLiBJIGlu dGVuZGVkIHRvIGRvIGl0IHdoZW4gSSByZXBsYWNlZCB0aGUgZW5naW5lDQo+Pj4gdGhpcyBzdW1t ZXIsIGJ1dCB0aGlzIHdhc24ndCBhIGdvb2QgeWVhciBmb3IgaXQgJCQkLg0KPj4+DQo+Pj4gSSBo YXZlIGhlYXJkIG92ZXJoYXVscyBydW4gJDI1MDAsIGJ1dCB0aGUgcGxhY2UgbmVhciBtZSBjaGFy Z2VzDQo+Pj4gJDMwMDAuICBXb3VsZCBiZSBuaWNlIHRvIGhlYXIgd2hhdCBraW5kcyBvZiBxdW90 ZXMgb3RoZXIgcGVvcGxlIGhhdmUNCj4+PiBnb3R0ZW4sIGFuZCB3aGVyZSB0aGV5IHJlY29tbWVu ZC4NCj4+PiBUaW0NCj4+Pg0KPj4+DQo+Pj4gT24gMTIvMjgvMjAgMTA6NTggUE0sIFJvYiBLb2No bWFuIHdyb3RlOg0KPj4+PiBNeSBSVi0xMCBoYXMgdGhlIHN0YW5kYXJkIEhhcnR6ZWxsIDItYmxh ZGUgY29uc3RhbnQgc3BlZWQgcHJvcCwgcHVyY2hhc2VkIG5ldy4gVG8gdGhpcyBwb2ludCwgSSd2 ZSBkb25lIG5vdGhpbmcgYnV0IGx1YnJpY2F0ZSBhbmQgaW5zcGVjdCBpdCBhbm51YWxseSwgYXMg d2VsbCBhcyBmaWxlIG91dCBuaWNrcy4gSSBrbm93IEhhcnR6ZWxsIHNheXMgNiB5ZWFycyBmb3Ig YW4gb3ZlcmhhdWwsIGJ1dCBnaXZlbiBsaW1pdGVkIHVzZSAoNTUwIGhvdXJzIHRvdGFsIHRpbWUp IGFuZCB0aGUgZmFjdCB0aGF0IGl0J3MgYWx3YXlzIGhhbmdhcmVkLCB0aGF0IHNlZW1lZCBleGNl c3NpdmVseSBjb25zZXJ2YXRpdmUuIEl0J3MgYWxzbyBub3QgbGVha2luZyBhbnkgb2lsIChzdGls bCBsb29rcyBsaWtlIG5ldyBpbnNpZGUgdGhlIHNwaW5uZXIpLiBIb3dldmVyLCBJJ20gbm93IGFw cHJvYWNoaW5nIDEwIHllYXJzLCBzbyBjdXJpb3VzIHRvIGhlYXIgd2hhdCBwZW9wbGUgcmVjb21t ZW5kLiBUaGFua3MhDQo+Pj4+IC1Sb2INCj4+Pj4gLS0NCj4+Pj4gUm9iIEtvY2htYW4NCj4+Pj4g UlYtMTAgRmx5aW5nIHNpbmNlIE1hcmNoIDIwMTENCj4+Pj4gS2lya2xhbmQsIFdBDQo+Pj4NCj4+ Pg0KPj4+DQo+DQo+DQo+DQoNCl8tPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09DQpfLT0gICAgICAgICAgLSBUaGUgUlYxMC1MaXN0IEVt YWlsIEZvcnVtIC0NCl8tPSBVc2UgdGhlIE1hdHJvbmljcyBMaXN0IEZlYXR1cmVzIE5hdmlnYXRv ciB0byBicm93c2UNCl8tPSB0aGUgbWFueSBMaXN0IHV0aWxpdGllcyBzdWNoIGFzIExpc3QgVW4v U3Vic2NyaXB0aW9uLA0KXy09IEFyY2hpdmUgU2VhcmNoICYgRG93bmxvYWQsIDctRGF5IEJyb3dz ZSwgQ2hhdCwgRkFRLA0KXy09IFBob3Rvc2hhcmUsIGFuZCBtdWNoIG11Y2ggbW9yZToNCl8tPQ0K Xy09ICAgLS0+IGh0dHA6Ly93d3cubWF0cm9uaWNzLmNvbS9OYXZpZ2F0b3I/UlYxMC1MaXN0DQpf LT0NCl8tPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09DQpfLT0gICAgICAgICAgICAgICAtIE1BVFJPTklDUyBXRUIgRk9SVU1TIC0NCl8t PSBTYW1lIGdyZWF0IGNvbnRlbnQgYWxzbyBhdmFpbGFibGUgdmlhIHRoZSBXZWIgRm9ydW1zIQ0K Xy09DQpfLT0gICAtLT4gaHR0cDovL2ZvcnVtcy5tYXRyb25pY3MuY29tDQpfLT0NCl8tPT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09DQpf LT0gICAgICAgICAgICAgIC0gTkVXIE1BVFJPTklDUyBMSVNUIFdJS0kgLQ0KXy09IEFkZCBzb21l IGluZm8gdG8gdGhlIE1hdHJvbmljcyBFbWFpbCBMaXN0IFdpa2khDQpfLT0gICAtLT4gaHR0cDov L3dpa2kubWF0cm9uaWNzLmNvbQ0KXy09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT0NCl8tPSAgICAgICAgICAgICAtIExpc3QgQ29udHJp YnV0aW9uIFdlYiBTaXRlIC0NCl8tPSAgVGhhbmsgeW91IGZvciB5b3VyIGdlbmVyb3VzIHN1cHBv cnQhDQpfLT0gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAtTWF0dCBEcmFsbGUsIExpc3Qg QWRtaW4uDQpfLT0gICAtLT4gaHR0cDovL3d3dy5tYXRyb25pY3MuY29tL2NvbnRyaWJ1dGlvbg0K Xy09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT0NCg0KDQoNCg= ________________________________ Message 5 _____________________________________ Time: 08:15:49 AM PST US Subject: Re: RV10-List: When to service the propeller? From: Tim Olson 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@matronics.com > on behalf of Tim Olson > > *Sent:* Tuesday, December 29, 2020 10:26:10 AM > *To:* 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 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 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 6 _____________________________________ Time: 11:58:30 AM PST US From: Phil Perry Subject: Re: RV10-List: 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 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 on behalf of Tim Olson >> Sent: Tuesday, December 29, 2020 10:26:10 AM >> To: 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 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 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 >> >> >> > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv10-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV10-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv10-list Browse Digests http://www.matronics.com/digest/rv10-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.