---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 04/23/15: 19 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:02 AM - GT YAK blades (ALEXGTPROPELLERS) 2. 06:34 AM - WI Formation Clinic - NEW PARTICIPANT! (Rico Jaeger) 3. 06:46 AM - Re: WI Formation Clinic - NEW PARTICIPANT! (Richard Hess) 4. 08:51 AM - Re: Air Leak Advice (AcroGimp) 5. 09:41 AM - Re: Re: Air Leak Advice (Bitterlich, Mark G CIV NAVAIR, WD) 6. 10:27 AM - Re: Air Leak Advice (AcroGimp) 7. 11:12 AM - Re: Re: Air Leak Advice (Rico Jaeger) 8. 01:28 PM - Re: Air Leak Advice (AcroGimp) 9. 02:19 PM - Re: Re: Air Leak Advice (Bitterlich, Mark G CIV NAVAIR, WD) 10. 02:22 PM - Re: Re: Air Leak Advice (Frank Stelwagon) 11. 02:50 PM - Re: Air Leak Advice (AcroGimp) 12. 04:37 PM - Re: GT YAK blades (Ttail) 13. 04:43 PM - Re: Re: GT YAK blades (Kregg Victory) 14. 04:44 PM - Re: Re: GT YAK blades-- Retract (Kregg Victory) 15. 06:37 PM - Re: Re: Air Leak Advice (Roger Kemp) 16. 07:24 PM - Re: Re: Air Leak Advice (Roger Kemp) 17. 07:26 PM - Re: Re: Air Leak Advice (Roger Kemp) 18. 07:39 PM - Re: Re: Air Leak Advice (Roger Kemp) 19. 07:59 PM - Re: Re: Air Leak Advice (Roger Kemp) ________________________________ Message 1 _____________________________________ Time: 06:02:05 AM PST US Subject: Yak-List: GT YAK blades From: "ALEXGTPROPELLERS" HI Yakkers, I am glad to inform you that we at GT-Propellers will soon celebrate the production of the 600th M14 blade which is compatible with the V530 D hub. Great performance and trouble free! See attached file with recent Australian Warbirds approval and an image of the new squared blade properly sized to match 20" spinner. Wood composite has a long, long history in aviation and guarantees no bad surprises! Thanks all and Ciao Alex Tonini PS See another outstanding RV project radial powered with one of our custom CS electric prop styled like a YAK ! https://www.facebook.com/radialconversions?fref=ts Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441165#441165 Attachments: http://forums.matronics.com//files/press_release_yak_blades_268.pdf http://forums.matronics.com//files/press_release_yak_blades_139.pdf http://forums.matronics.com//files/immagine_i_phone_013_4723_988.jpg ________________________________ Message 2 _____________________________________ Time: 06:34:56 AM PST US From: Rico Jaeger Subject: Yak-List: WI Formation Clinic - NEW PARTICIPANT! The 1st CJ is on board! And he (OK=2C I) would like to issue a challenge to other CJ drivers to step up! We're now at 5 aircraft. Please consider join ing us for all the Red Star flying and cheese curds you can eat! :) Mmmm...deep fried cheese curds...the breakfast of champions! Rico Jaeger 915 S. 11th Ave. Wausau=2C WI. 54401 715.529.7426 // 1966 Cessna 150F ^/---//-X N8558G //Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK //Hangar #21 / AUW ________________________________ Message 3 _____________________________________ Time: 06:46:44 AM PST US From: Richard Hess Subject: Re: Yak-List: WI Formation Clinic - NEW PARTICIPANT! Rico, I will do my best to be there with Mongoose, N600YK. Cheers Richard Hess President International Jets, Inc. Cell 404-964-4885 -----Original Message----- From: Rico Jaeger Sent: Thu, Apr 23, 2015 9:35 am Subject: Yak-List: WI Formation Clinic - NEW PARTICIPANT! The 1st CJ is on board! And he (OK, I) would like to issue a challenge to other CJ drivers to step up! We're now at 5 aircraft. Please consider joining us for all the Red Star flying and cheese curds you can eat! :) Mmmm...deep fried cheese curds...the breakfast of champions! Rico Jaeger 915 S. 11th Ave. Wausau, WI. 54401 715.529.7426 // 1966 Cessna 150F ^/---//-X N8558G // Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK // Hangar #21 / AUW ________________________________ Message 4 _____________________________________ Time: 08:51:31 AM PST US Subject: Yak-List: Re: Air Leak Advice From: "AcroGimp" Failed the glove check, looks like compressor shear shaft. Mechanic's spare compressor is here so I checked on it to see what it should look like, nothing on the plane. So next question is just how bad is removing the compressor, and other than the occasional kickback, what other causes for shearing the shaft? Thanks in advance. 'Gimp -------- Owner/Pilot N6209F 1987 Yak-52 COMM/ASEL/IFR/HP-Complex/TW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441175#441175 ________________________________ Message 5 _____________________________________ Time: 09:41:22 AM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: RE: Yak-List: Re: Air Leak Advice Age, gunk getting into compressor, compressor internal part failure, and just simply wearing out, etc. Which is why I asked you how many hours were on it. Removing the compressor is difficult and patience is required. You are going to need the special tool that comes in the Russian tool kit. Otherwise you are going to need to make special tools. Jill at M14P sells a special kit that includes some special wrenches. I want to say she reduces the nut size from 14mm to 10mm, but don't quote me on that .. ask her. Regardless, you still have to take the original one off. I assume you are going to replace the coupler and also put on a new or rebuild compressor. Jill also has the correct gaskets needed, and be careful putting them on, as they are easy to get backwards which will block an oil passage. Simply put, it is not a lot of fun but do-able ... and it helps to have someone with long thin fingers! -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of AcroGimp Sent: Thursday, April 23, 2015 11:50 AM Subject: Yak-List: Re: Air Leak Advice Failed the glove check, looks like compressor shear shaft. Mechanic's spare compressor is here so I checked on it to see what it should look like, nothing on the plane. So next question is just how bad is removing the compressor, and other than the occasional kickback, what other causes for shearing the shaft? Thanks in advance. 'Gimp -------- Owner/Pilot N6209F 1987 Yak-52 COMM/ASEL/IFR/HP-Complex/TW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441175#441175 ________________________________ Message 6 _____________________________________ Time: 10:27:28 AM PST US Subject: Yak-List: Re: Air Leak Advice From: "AcroGimp" Checked the logs and compressor has 41 hrs of operation. I have had a reverse rotation/dieseling event I think twice in about 15-16 flights, both times only a couple of blades but still it did happen. Last occurrence was flight prior to flight where everything pumped up correctly, so 3 flights ago. When I overhauled the snot valve side check valve it was very dirty, the fill side was clean, so I am planning to overhaul PRV and snot valve during this down cycle, as well as putting a serious clean on the little piston valve in the coupler at the bottom of the compressor. Until I remove the old compressor I won't know if it is a shear shaft issue or something else but I will absolutely check the compressor gasket for the oil passage. Would you guys go back to the mech for compensation if the gasket was installed incorrectly (asking, first airplane and all)? Thanks for the support and info... 'Gimp -------- Owner/Pilot N6209F 1987 Yak-52 COMM/ASEL/IFR/HP-Complex/TW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441181#441181 ________________________________ Message 7 _____________________________________ Time: 11:12:12 AM PST US From: Rico Jaeger Subject: RE: Yak-List: Re: Air Leak Advice Nuts are 11 mm. Trust me...I've birthed this baby 5 times. And you are corr ect=2C probably impossible w/o the curved / flexing 11 mm Russian wrench. T he lock washers are also very tough to align before even approaching w/ a n ut since there is extremely little work space - and (looking at the compres sor) the nut at about the 10:00 position in the most challenging. I used a kind of "paste" to stick the hardware to my fingers because often you can o nly get one (1) finger into the work space where the stud is. Once the nuts are threaded=2C torquing is a cinch! Save yourself some time and invent so me new curse words now. Not fun=2C but if you do it enough it can get to be a less painful routine... Rico Jaeger 915 S. 11th Ave. Wausau=2C WI. 54401 715.529.7426 // 1966 Cessna 150F ^/---//-X N8558G //Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK //Hangar #21 / AUW > From: mark.bitterlich@navy.mil > To: yak-list@matronics.com > Subject: RE: Yak-List: Re: Air Leak Advice > Date: Thu=2C 23 Apr 2015 16:40:20 +0000 > mark.bitterlich@navy.mil> > > Age=2C gunk getting into compressor=2C compressor internal part failure =2C and just simply wearing out=2C etc. Which is why I asked you how many hours were on it. > > Removing the compressor is difficult and patience is required. You are g oing to need the special tool that comes in the Russian tool kit. Otherwis e you are going to need to make special tools. > > Jill at M14P sells a special kit that includes some special wrenches. I want to say she reduces the nut size from 14mm to 10mm=2C but don't quote me on that .. ask her. Regardless=2C you still have to take the original one off. I assume you are going to replace the coupler and also put on a n ew or rebuild compressor. Jill also has the correct gaskets needed=2C and be careful putting them on=2C as they are easy to get backwards which will block an oil passage. Simply put=2C it is not a lot of fun but do-able . .. and it helps to have someone with long thin fingers! > > -----Original Message----- > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@m atronics.com] On Behalf Of AcroGimp > Sent: Thursday=2C April 23=2C 2015 11:50 AM > To: yak-list@matronics.com > Subject: Yak-List: Re: Air Leak Advice > > > Failed the glove check=2C looks like compressor shear shaft. Mechanic's spare compressor is here so I checked on it to see what it should look like =2C nothing on the plane. > > So next question is just how bad is removing the compressor=2C and other than the occasional kickback=2C what other causes for shearing the shaft? > > Thanks in advance. > > 'Gimp > > -------- > Owner/Pilot N6209F 1987 Yak-52 > COMM/ASEL/IFR/HP-Complex/TW > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=441175#441175 > > > > > > > > > > > > =========== =========== =========== =========== > > > ________________________________ Message 8 _____________________________________ Time: 01:28:13 PM PST US Subject: Yak-List: Re: Air Leak Advice From: "AcroGimp" Another question, is there supposed to be a cooling horn pointed at the compressor? Current install has a cooling tube from the front of the engine side that just ends facing aft near the motor mount and could have had something on it direct cooling air at the compressor but nothing I can see for this right now. Just curious... 'Gimp -------- Owner/Pilot N6209F 1987 Yak-52 COMM/ASEL/IFR/HP-Complex/TW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441186#441186 ________________________________ Message 9 _____________________________________ Time: 02:19:57 PM PST US From: "Bitterlich, Mark G CIV NAVAIR, WD" Subject: RE: Yak-List: Re: Air Leak Advice Roger on 11 mm. I am pretty sure Jill's "better way of doing it" uses 10 mm to allow for a little more space. Not saying that is the best way to go, just saying I bought it to take a look and see. And yes Gimp, there is supposed to be an air tube with a fitting on the end that provides cooling air around the compressor. Sounds like you might be missing the fitting. I forgot to mention "HEAT" as one of the things that can make a compressor fail earlier than normal. :-) Good luck and thanks Rico. Mark ________________________________ From: owner-yak-list-server@matronics.com [owner-yak-list-server@matronics.com] on behalf of Rico Jaeger [rocknpilot@hotmail.com] Sent: Thursday, April 23, 2015 2:11 PM Subject: RE: Yak-List: Re: Air Leak Advice Nuts are 11 mm. Trust me...I've birthed this baby 5 times. And you are correct, probably impossible w/o the curved / flexing 11 mm Russian wrench. The lock washers are also very tough to align before even approaching w/ a nut since there is extremely little work space - and (looking at the compressor) the nut at about the 10:00 position in the most challenging. I used a kind of "paste" to stick the hardware to my fingers because often you can only get one (1) finger into the work space where the stud is. Once the nuts are threaded, torquing is a cinch! Save yourself some time and invent some new curse words now. Not fun, but if you do it enough it can get to be a less painful routine... Rico Jaeger 915 S. 11th Ave. Wausau, WI. 54401 715.529.7426 // 1966 Cessna 150F ^/---//-X N8558G // Hangar #35 / AUW // 1992 Yakovlev Yak 52 ^/---//-X N21YK // Hangar #21 / AUW > From: mark.bitterlich@navy.mil > To: yak-list@matronics.com > Subject: RE: Yak-List: Re: Air Leak Advice > Date: Thu, 23 Apr 2015 16:40:20 +0000 > > > Age, gunk getting into compressor, compressor internal part failure, and just simply wearing out, etc. Which is why I asked you how many hours were on it. > > Removing the compressor is difficult and patience is required. You are going to need the special tool that comes in the Russian tool kit. Otherwise you are going to need to make special tools. > > Jill at M14P sells a special kit that includes some special wrenches. I want to say she reduces the nut size from 14mm to 10mm, but don't quote me on that .. ask her. Regardless, you still have to take the original one off. I assume you are going to replace the coupler and also put on a new or rebuild compressor. Jill also has the correct gaskets needed, and be careful putting them on, as they are easy to get backwards which will block an oil passage. Simply put, it is not a lot of fun but do-able ... and it helps to have someone with long thin fingers! > > -----Original Message----- > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of AcroGimp > Sent: Thursday, April 23, 2015 11:50 AM > To: yak-list@matronics.com > Subject: Yak-List: Re: Air Leak Advice > > > Failed the glove check, looks like compressor shear shaft. Mechanic's spare compressor is here so I checked on it to see what it should look like, nothing on the plane. > > So next question is just how bad is removing the compressor, and other than the occasional kickback, what other causes for shearing the shaft? > > Thanks in advance. > > 'Gimp > > -------- > Owner/Pilot N6209F 1987 Yak-52 > COMM/ASEL/IFR/HP-Complex/TW > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=441175#441175 > > > Archive Search & Download, 7-Day Browse, Chat, FAQ, >====================== &g==================== > > ________________________________ Message 10 ____________________________________ Time: 02:22:56 PM PST US From: "Frank Stelwagon" Subject: Re: Yak-List: Re: Air Leak Advice Byron Fox on this list has composite cooling horns. Frank ----- Original Message ----- From: "AcroGimp" Sent: Thursday, April 23, 2015 1:27 PM Subject: Yak-List: Re: Air Leak Advice > > Another question, is there supposed to be a cooling horn pointed at the > compressor? Current install has a cooling tube from the front of the > engine side that just ends facing aft near the motor mount and could have > had something on it direct cooling air at the compressor but nothing I can > see for this right now. > > Just curious... > > 'Gimp > > -------- > Owner/Pilot N6209F 1987 Yak-52 > COMM/ASEL/IFR/HP-Complex/TW > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=441186#441186 > > > ________________________________ Message 11 ____________________________________ Time: 02:50:46 PM PST US Subject: Yak-List: Re: Air Leak Advice From: "AcroGimp" pfstelwagon(at)earthlink. wrote: > Byron Fox on this list has composite cooling horns. > > Frank > --- Thanks Frank, I expect to see Blitz tomorrow at Porterville and will ask when I see him. Thanks 'Gimp -------- Owner/Pilot N6209F 1987 Yak-52 COMM/ASEL/IFR/HP-Complex/TW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441194#441194 ________________________________ Message 12 ____________________________________ Time: 04:37:49 PM PST US Subject: Yak-List: Re: GT YAK blades From: "Ttail" Has the AWAL Revised YAK52 Maintenancee Schedule been published ? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441196#441196 ________________________________ Message 13 ____________________________________ Time: 04:43:03 PM PST US From: "Kregg Victory" Subject: RE: Yak-List: Re: GT YAK blades No I don't think so. Are you out the United States? I will not ship out of the United States, Just a FYI Thanks, Kregg Victory Aero 2502 John Montgomery Dr. San Jose, CA 95148 408-836-5122 www.victoryhangar.com www.balancemyprop.com -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Ttail Sent: Thursday, April 23, 2015 4:37 PM Subject: Yak-List: Re: GT YAK blades Has the AWAL Revised YAK52 Maintenancee Schedule been published ? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441196#441196 ________________________________ Message 14 ____________________________________ Time: 04:44:15 PM PST US From: "Kregg Victory" Subject: RE: Yak-List: Re: GT YAK blades-- Retract Disregard my last email. It was sent in Error to the wrong email address.. Kregg V -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Ttail Sent: Thursday, April 23, 2015 4:37 PM Subject: Yak-List: Re: GT YAK blades Has the AWAL Revised YAK52 Maintenancee Schedule been published ? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=441196#441196 ________________________________ Message 15 ____________________________________ Time: 06:37:59 PM PST US Subject: Re: Yak-List: Re: Air Leak Advice From: Roger Kemp The A/C probably had more kick backed before you got it. It will sheer also it the compressor is working against a high pressure to protect the compressor accessory drive gears. Doc Sent from my iPad > On Apr 23, 2015, at 10:50 AM, AcroGimp wrote: > > > Failed the glove check, looks like compressor shear shaft. Mechanic's spare compressor is here so I checked on it to see what it should look like, nothing on the plane. > > So next question is just how bad is removing the compressor, and other than the occasional kickback, what other causes for shearing the shaft? > > Thanks in advance. > > 'Gimp > > -------- > Owner/Pilot N6209F 1987 Yak-52 > COMM/ASEL/IFR/HP-Complex/TW > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=441175#441175 > > > > > > > > > > ________________________________ Message 16 ____________________________________ Time: 07:24:04 PM PST US Subject: Re: Yak-List: Re: Air Leak Advice From: Roger Kemp Gimp, Which gasket are you referring to? The aluminum crush washer on the check valve or the gasket on the accessory drive case. It is real tough to get the gasket forming the oil seal on base of the compressor as it mates to the accessory case wrong. I guess if you really worked hard at it one could though. Doc Sent from my iPad > On Apr 23, 2015, at 12:27 PM, AcroGimp wrote: > > > Checked the logs and compressor has 41 hrs of operation. > > I have had a reverse rotation/dieseling event I think twice in about 15-16 flights, both times only a couple of blades but still it did happen. Last occurrence was flight prior to flight where everything pumped up correctly, so 3 flights ago. > > When I overhauled the snot valve side check valve it was very dirty, the fill side was clean, so I am planning to overhaul PRV and snot valve during this down cycle, as well as putting a serious clean on the little piston valve in the coupler at the bottom of the compressor. > > Until I remove the old compressor I won't know if it is a shear shaft issue or something else but I will absolutely check the compressor gasket for the oil passage. Would you guys go back to the mech for compensation if the gasket was installed incorrectly (asking, first airplane and all)? > > Thanks for the support and info... > > 'Gimp > > -------- > Owner/Pilot N6209F 1987 Yak-52 > COMM/ASEL/IFR/HP-Complex/TW > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=441181#441181 > > > > > > > > > > ________________________________ Message 17 ____________________________________ Time: 07:26:03 PM PST US Subject: Re: Yak-List: Re: Air Leak Advice From: Roger Kemp Yes, for the 52 but not the 50. Doc Sent from my iPad > On Apr 23, 2015, at 3:27 PM, AcroGimp wrote: > > > Another question, is there supposed to be a cooling horn pointed at the compressor? Current install has a cooling tube from the front of the engine side that just ends facing aft near the motor mount and could have had something on it direct cooling air at the compressor but nothing I can see for this right now. > > Just curious... > > 'Gimp > > -------- > Owner/Pilot N6209F 1987 Yak-52 > COMM/ASEL/IFR/HP-Complex/TW > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=441186#441186 > > > > > > > > > > ________________________________ Message 18 ____________________________________ Time: 07:39:16 PM PST US Subject: Re: Yak-List: Re: Air Leak Advice From: Roger Kemp Sorry Mark, your answers did not show up on my email chain until now. Yes the gasket can be put on backwards but is pretty obvious if you fit the gasket to the base of the compressor first with Permatex 51813 anaerobic gasket maker. The alignment of the oil holes will be intuitive and the sealant does not for until it is heated. Doc Sent from my iPad > On Apr 23, 2015, at 9:22 PM, Roger Kemp wrote: > > > Gimp, > Which gasket are you referring to? The aluminum crush washer on the check valve or the gasket on the accessory drive case. It is real tough to get the gasket forming the oil seal on base of the compressor as it mates to the accessory case wrong. I guess if you really worked hard at it one could though. > Doc > > Sent from my iPad > >> On Apr 23, 2015, at 12:27 PM, AcroGimp wrote: >> >> >> Checked the logs and compressor has 41 hrs of operation. >> >> I have had a reverse rotation/dieseling event I think twice in about 15-16 flights, both times only a couple of blades but still it did happen. Last occurrence was flight prior to flight where everything pumped up correctly, so 3 flights ago. >> >> When I overhauled the snot valve side check valve it was very dirty, the fill side was clean, so I am planning to overhaul PRV and snot valve during this down cycle, as well as putting a serious clean on the little piston valve in the coupler at the bottom of the compressor. >> >> Until I remove the old compressor I won't know if it is a shear shaft issue or something else but I will absolutely check the compressor gasket for the oil passage. Would you guys go back to the mech for compensation if the gasket was installed incorrectly (asking, first airplane and all)? >> >> Thanks for the support and info... >> >> 'Gimp >> >> -------- >> Owner/Pilot N6209F 1987 Yak-52 >> COMM/ASEL/IFR/HP-Complex/TW >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=441181#441181 >> >> >> >> >> >> >> >> >> >> > > > > > ________________________________ Message 19 ____________________________________ Time: 07:59:05 PM PST US Subject: Re: Yak-List: Re: Air Leak Advice From: Roger Kemp Not sure what Apple auto correct was trying to say?? "The sealant does not activate until it is heated." Doc Sent from my iPad > On Apr 23, 2015, at 9:38 PM, Roger Kemp wrote: > > > Sorry Mark, your answers did not show up on my email chain until now. Yes the gasket can be put on backwards but is pretty obvious if you fit the gasket to the base of the compressor first with Permatex 51813 anaerobic gasket maker. The alignment of the oil holes will be intuitive and the sealant does not for until it is heated. > Doc > > Sent from my iPad > >> On Apr 23, 2015, at 9:22 PM, Roger Kemp wrote: >> >> >> Gimp, >> Which gasket are you referring to? The aluminum crush washer on the check valve or the gasket on the accessory drive case. It is real tough to get the gasket forming the oil seal on base of the compressor as it mates to the accessory case wrong. I guess if you really worked hard at it one could though. >> Doc >> >> Sent from my iPad >> >>> On Apr 23, 2015, at 12:27 PM, AcroGimp wrote: >>> >>> >>> Checked the logs and compressor has 41 hrs of operation. >>> >>> I have had a reverse rotation/dieseling event I think twice in about 15-16 flights, both times only a couple of blades but still it did happen. Last occurrence was flight prior to flight where everything pumped up correctly, so 3 flights ago. >>> >>> When I overhauled the snot valve side check valve it was very dirty, the fill side was clean, so I am planning to overhaul PRV and snot valve during this down cycle, as well as putting a serious clean on the little piston valve in the coupler at the bottom of the compressor. >>> >>> Until I remove the old compressor I won't know if it is a shear shaft issue or something else but I will absolutely check the compressor gasket for the oil passage. Would you guys go back to the mech for compensation if the gasket was installed incorrectly (asking, first airplane and all)? >>> >>> Thanks for the support and info... >>> >>> 'Gimp >>> >>> -------- >>> Owner/Pilot N6209F 1987 Yak-52 >>> COMM/ASEL/IFR/HP-Complex/TW >>> >>> >>> >>> >>> Read this topic online here: >>> >>> http://forums.matronics.com/viewtopic.php?p=441181#441181 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >> >> >> >> > > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-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/yak-list Browse Digests http://www.matronics.com/digest/yak-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.