---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Wed 01/21/15: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:51 AM - Re: Engine vibration (Jill Gernetzke) 2. 05:47 AM - Re: Engine Vibration (Rico Jaeger) 3. 05:58 AM - Re: Engine Vibration (George S. Coy) 4. 06:05 AM - CJ engine parts (George S. Coy) 5. 06:18 AM - Re: Engine Vibration (Todd McCutchan) 6. 07:04 AM - Re: Engine Vibration (Rico Jaeger) 7. 07:37 AM - Yak 18T Attitude indicator (Jerry Painter) 8. 08:00 AM - Re: Yak 18T Attitude indicator (A. Dennis Savarese) 9. 09:09 AM - Re: CJ engine parts (doug sapp) 10. 09:17 AM - Re: CJ engine parts (George S. Coy) 11. 12:52 PM - Re: Stainless Gill Vane Screws (Sonic1) ________________________________ Message 1 _____________________________________ Time: 04:51:39 AM PST US From: "Jill Gernetzke" Subject: Yak-List: Re: Engine vibration Anthony & Group, I advised having someone with a dynamic balancer check for anomalies on the crank vibration based upon the vibration only occurring at the RPM/MP combination. If the balancer has two pickup points, it can check for this. Of course, you would perform a dynamic balance of the prop and that would be the starting point anyway. If there is a prop out of balance vibration, it typically never goes away. Could there be a blade out of track producing a harmonic that seems like a vibration? Perhaps. Anthony, it would be helpful if you could fill in the blanks for the group regarding conditions in which this problem started? How much of a vibration is it? etc, etc...anything that can help sleuth out the problem. As an aside, our B&C Specialty promo on the SK35 alternator has been wildly successful. I sold out of the alternators I bought for my stock and will be placing one more large order before the promo ends on 1/31/15. The alternator/regulator combo is $728. Matt Dralle of the Yaklist has reaped some reward - $80 from sales on this list. : ) Jill M-14P, Inc. ________________________________ Message 2 _____________________________________ Time: 05:47:44 AM PST US From: Rico Jaeger Subject: RE: Yak-List: Engine Vibration I also have what is described below - a slowly-oscillating vibration that p eaks and subsides in 2 -3 seconds - also at 80%. Nothing else like it at an y other setting... 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: k2@tulsaconnect.com Subject: Re: Yak-List: Engine Vibration =0A =0A =0A =0A =0A =0A Any drone of vibration felt in the cockpit=2C kinda like a twin engine =0A prop out of sync... is usually due to=2C say=2C an airframe problem... =0A too much slop in a trim tab.=0A Or to a prop problem.. like a blade angle getting out of sync..=0A =0A My first guess is to check the blade counterweighs which may be a little =0A tight=2C due to needed lubrication.. or a slight difference in bolt torque on =0A those counterweights which may cause a sticking blade not to follow =0A the other.. =0A One time=2C after shipment=2C a crew failed to turn in on blade that last =0A millimeter to bottom one blade.=0A =0A When you search for someone to provide a dynamic prop balance=2C be =0A sure to find someone with lots of experience... =0A =0A Its rather easy to do a Pratt 1340 which usually has a tight =0A planetary prop reduction system.=0A Most respond well and are predictable..=0A =0A But M14 engines can be all over the place...=0A The frequency sidebands can confuse the balancing equipment =0A easily.=0A =0A I don=92t post here often... But Monty Barrett and Allen know =0A me..=0A =0A Tulsa Oklahoma a number of Yaks & Cj=92s.. Not writing about =0A me but=2C Some Mechanics here are very good and know the models well.=0A regards.=0A =0A Kent Felkins=0A Tulsa=0A =0A =0A =0A =0A =0A =0A From: Byron Fox =0A Sent: Tuesday=2C January 20=2C 2015 19:54 PM=0A Subject: Re: Yak-List: Engine Vibration=0A =0A =0A Of an out of balance prop. Blitz Fox =0A 415-307-2405=0A On Jan 20=2C 2015=2C at 5:30 PM=2C Anthony Hudacek =0A wrote: =0A =0A =0A =0A Hello Yakkers=2C=0A =0A My engine has developed a =0A vibration when running my M14P at 80% & 8. It's almost like a drone that =0A comes in every 2 - 3 seconds. At every other power setting it is fine. Ha s =0A anyone else experienced this before? I have been in touch with Jill who t hinks =0A it could be a bent link rod.=0A =0A Cheers.=0A =0A ===========0A ctric.com=0A >www.buildersbooks.com=0A uilthelp.com=0A otstore.com=0A =0A matronics.com/contribution=0A ===========0A //www.matronics.com/Navigator?Yak-List=0A ===========0A cs.com=0A ===========0A =0A =0A =0A href="http://www.aeroelectric.com">www.aeroelectric.com=0A href="http://www.buildersbooks.com">www.buildersbooks.com=0A href="http://www.homebuilthelp.com">www.homebuilthelp.com=0A href="http://www.mypilotstore.com">www.mypilotstore.com=0A href="http://www.mrrace.com">www.mrrace.com=0A href="http://www.matronics.com/contribution">http://www.matronics.com/chr ef="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com /Navigator?Yak-List=0A href="http://forums.matronics.com">http://forums.matronics.com=0A =0A =0A =0A =0A =0A =0A ============0A ============0A ============0A ============0A =0A ________________________________ Message 3 _____________________________________ Time: 05:58:43 AM PST US From: "George S. Coy" Subject: RE: Yak-List: Engine Vibration Is the manifold pressure close to the pressure altitude? George From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Rico Jaeger Sent: Wednesday, January 21, 2015 8:47 AM Subject: RE: Yak-List: Engine Vibration I also have what is described below - a slowly-oscillating vibration that peaks and subsides in 2 -3 seconds - also at 80%. Nothing else like it at any other setting... 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: k2@tulsaconnect.com Subject: Re: Yak-List: Engine Vibration Any drone of vibration felt in the cockpit, kinda like a twin engine prop out of sync... is usually due to, say, an airframe problem... too much slop in a trim tab. Or to a prop problem.. like a blade angle getting out of sync.. My first guess is to check the blade counterweighs which may be a little tight, due to needed lubrication.. or a slight difference in bolt torque on those counterweights which may cause a sticking blade not to follow the other.. One time, after shipment, a crew failed to turn in on blade that last millimeter to bottom one blade. When you search for someone to provide a dynamic prop balance, be sure to find someone with lots of experience... Its rather easy to do a Pratt 1340 which usually has a tight planetary prop reduction system. Most respond well and are predictable.. But M14 engines can be all over the place... The frequency sidebands can confuse the balancing equipment easily. I don't post here often... But Monty Barrett and Allen know me.. Tulsa Oklahoma a number of Yaks & Cj's.. Not writing about me but, Some Mechanics here are very good and know the models well. regards. Kent Felkins Tulsa From: Byron Fox Sent: Tuesday, January 20, 2015 19:54 PM Subject: Re: Yak-List: Engine Vibration Of an out of balance prop. Blitz Fox 415-307-2405 On Jan 20, 2015, at 5:30 PM, Anthony Hudacek wrote: Hello Yakkers, My engine has developed a vibration when running my M14P at 80% & 8. It's almost like a drone that comes in every 2 - 3 seconds. At every other power setting it is fine. Has anyone else experienced this before? I have been in touch with Jill who thinks it could be a bent link rod. Cheers. ========= ctric.com >www.buildersbooks.com uilthelp.com otstore.com matronics.com/contribution ========= //www.matronics.com/Navigator?Yak-List ========= cs.com ========= href="http://www.aeroelectric.com">www.aeroelectric.com href="http://www.buildersbooks.com">www.buildersbooks.com href="http://www.homebuilthelp.com">www.homebuilthelp.com href="http://www.mypilotstore.com">www.mypilotstore.com href="http://www.mrrace.com">www.mrrace.com href="http://www.matronics.com/contribution">http://www.matronics.com/chref "http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navig ator?Yak-List href="http://forums.matronics.com">http://forums.matronics.com ========== _blank">www.aeroelectric.com " target="_blank">www.buildersbooks.com ="_blank">www.homebuilthelp.com ="_blank">www.mypilotstore.com ank">www.mrrace.com ="_blank">http://www.matronics.com/contribution ========== rget="_blank">http://www.matronics.com/Navigator?Yak-List ========== http://forums.matronics.com ========== ________________________________ Message 4 _____________________________________ Time: 06:05:09 AM PST US From: "George S. Coy" Subject: Yak-List: CJ engine parts Hey guys, I have a client looking for AI14RA engine parts. Are the engine parts generally available? The Chinese CJ6 engine was a originally a license built AI14RA engine. The Motorstar factory has disassembled several of the Chinese engines and has found the parts identical to the AI14 engine. George Coy CAS Ltd. 629 Airport Rd. Swanton VT 05488 USA 802-868-5633 off 802-363-5782 cell 802-868-4465 Fax george.coy@gmail.com http://coyacft.com/ SKYPE george.coy ________________________________ Message 5 _____________________________________ Time: 06:18:23 AM PST US From: Todd McCutchan Subject: Re: Yak-List: Engine Vibration I was told that the Yak 50 with the V-530 having a slow harmonic "pulse" is v ery common around 80% and is the engine / prop / airframe interaction causin g a harmonic "wave" through the airframe. Not sure if it is true but is what I was told. Of course if it didn't do it before would check it out. Also if there was so me "event" that precluded it would be interesting. Todd McCutchan T-34A & Yak-50 Cell: (260) 402-1740 E-mail: todd@fastaircraft.com www.fastaircraft.com > On Jan 21, 2015, at 6:47 AM, Rico Jaeger wrote: > > I also have what is described below - a slowly-oscillating vibration that p eaks and subsides in 2 -3 seconds - also at 80%. Nothing else like it at any other setting... > > 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: k2@tulsaconnect.com > To: yak-list@matronics.com > Subject: Re: Yak-List: Engine Vibration > Date: Tue, 20 Jan 2015 21:19:51 -0600 > > > Any drone of vibration felt in the cockpit, kinda like a twin engine prop out of sync... is usually due to, say, an airframe problem... too much sl op in a trim tab. > Or to a prop problem.. like a blade angle getting out of sync.. > > My first guess is to check the blade counterweighs which may be a little t ight, due to needed lubrication.. or a slight difference in bolt torque on t hose counterweights which may cause a sticking blade not to follow the oth er.. > One time, after shipment, a crew failed to turn in on blade that last mil limeter to bottom one blade. > > When you search for someone to provide a dynamic prop balance, be sure to find someone with lots of experience... > > Its rather easy to do a Pratt 1340 which usually has a tight planetary pr op reduction system. > Most respond well and are predictable.. > > But M14 engines can be all over the place... > The frequency sidebands can confuse the balancing equipment easily. > > I don=99t post here often... But Monty Barrett and Allen know me.. > > Tulsa Oklahoma a number of Yaks & Cj=99s.. Not writing about me bu t, Some Mechanics here are very good and know the models well. > regards. > > Kent Felkins > Tulsa > > > > From: Byron Fox > Sent: Tuesday, January 20, 2015 19:54 PM > To: yak-list@matronics.com > Subject: Re: Yak-List: Engine Vibration > > Of an out of balance prop. > > Blitz Fox > 415-307-2405 > > On Jan 20, 2015, at 5:30 PM, Anthony Hudacek wro te: > > Hello Yakkers, > > My engine has developed a vibration when running my M14P at 80% & 8. It's a lmost like a drone that comes in every 2 - 3 seconds. At every other power s etting it is fine. Has anyone else experienced this before? I have been in t ouch with Jill who thinks it could be a bent link rod. > > Cheers. > > > ========= > ctric.com > >www.buildersbooks.com > uilthelp.com > otstore.com > > matronics.com/contribution > ========= > //www.matronics.com/Navigator?Yak-List > ========= > cs.com > ========= > > > > href="http://www.aeroelectric.com">www.aeroelectric.com > href="http://www.buildersbooks.com">www.buildersbooks.com > href="http://www.homebuilthelp.com">www.homebuilthelp.com > href="http://www.mypilotstore.com">www.mypilotstore.com > href="http://www.mrrace.com">www.mrrace.com > href="http://www.matronics.com/contribution">http://www.matronics.com/ch ref="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com /Navigator?Yak-List > href="http://forums.matronics.com">http://forums.matronics.com > > > > ========== > _blank">www.aeroelectric.com > " target="_blank">www.buildersbooks.com > ="_blank">www.homebuilthelp.com > ="_blank">www.mypilotstore.com > ank">www.mrrace.com > ="_blank">http://www.matronics.com/contribution > ========== > rget="_blank">http://www.matronics.com/Navigator?Yak-List > ========== > http://forums.matronics.com > ========== > > > 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > ________________________________ Message 6 _____________________________________ Time: 07:04:48 AM PST US From: Rico Jaeger Subject: RE: Yak-List: Engine Vibration Todd's description was the best yet of something very difficult to accurate ly and adequately put into words. ("Harmonic Wave" Love it!) THAT is what i t feels like - an airframe "resonance" which occurs only under specific set tings - a lot like singing in the shower (NEVER COUNTRY!) and certain pitch es appear to be amplified by the shape of the shower shell. Nothing preclud ed the vibrations I'm detecting=2C but I only have about 90 personal hours on my aircraft. 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: todd@fastaircraft.com Subject: Re: Yak-List: Engine Vibration I was told that the Yak 50 with the V-530 having a slow harmonic "pulse" is very common around 80% and is the engine / prop / airframe interaction cau sing a harmonic "wave" through the airframe. Not sure if it is true but is what I was told. Of course if it didn't do it before would check it out. Also if there was s ome "event" that precluded it would be interesting. Todd McCutchanT-34A & Yak-50Cell: (260) 402-1740E-mail: todd@fastaircraft.c omwww.fastaircraft.com On Jan 21=2C 2015=2C at 6:47 AM=2C Rico Jaeger wro te: =0A =0A =0A I also have what is described below - a slowly-oscillating vibration that p eaks and subsides in 2 -3 seconds - also at 80%. Nothing else like it at an y other setting... 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: k2@tulsaconnect.com Subject: Re: Yak-List: Engine Vibration =0A =0A =0A =0A =0A =0A Any drone of vibration felt in the cockpit=2C kinda like a twin engine =0A prop out of sync... is usually due to=2C say=2C an airframe problem... =0A too much slop in a trim tab.=0A Or to a prop problem.. like a blade angle getting out of sync..=0A =0A My first guess is to check the blade counterweighs which may be a little =0A tight=2C due to needed lubrication.. or a slight difference in bolt torque on =0A those counterweights which may cause a sticking blade not to follow =0A the other.. =0A One time=2C after shipment=2C a crew failed to turn in on blade that last =0A millimeter to bottom one blade.=0A =0A When you search for someone to provide a dynamic prop balance=2C be =0A sure to find someone with lots of experience... =0A =0A Its rather easy to do a Pratt 1340 which usually has a tight =0A planetary prop reduction system.=0A Most respond well and are predictable..=0A =0A But M14 engines can be all over the place...=0A The frequency sidebands can confuse the balancing equipment =0A easily.=0A =0A I don=92t post here often... But Monty Barrett and Allen know =0A me..=0A =0A Tulsa Oklahoma a number of Yaks & Cj=92s.. Not writing about =0A me but=2C Some Mechanics here are very good and know the models well.=0A regards.=0A =0A Kent Felkins=0A Tulsa=0A =0A =0A =0A =0A =0A =0A From: Byron Fox =0A Sent: Tuesday=2C January 20=2C 2015 19:54 PM=0A Subject: Re: Yak-List: Engine Vibration=0A =0A =0A Of an out of balance prop. Blitz Fox =0A 415-307-2405=0A On Jan 20=2C 2015=2C at 5:30 PM=2C Anthony Hudacek =0A wrote: =0A =0A =0A =0A Hello Yakkers=2C=0A =0A My engine has developed a =0A vibration when running my M14P at 80% & 8. It's almost like a drone that =0A comes in every 2 - 3 seconds. At every other power setting it is fine. Ha s =0A anyone else experienced this before? I have been in touch with Jill who t hinks =0A it could be a bent link rod.=0A =0A Cheers.=0A =0A ===========0A ctric.com=0A >www.buildersbooks.com=0A uilthelp.com=0A otstore.com=0A =0A matronics.com/contribution=0A ===========0A //www.matronics.com/Navigator?Yak-List=0A ===========0A cs.com=0A ===========0A =0A =0A =0A href="http://www.aeroelectric.com">www.aeroelectric.com=0A href="http://www.buildersbooks.com">www.buildersbooks.com=0A href="http://www.homebuilthelp.com">www.homebuilthelp.com=0A href="http://www.mypilotstore.com">www.mypilotstore.com=0A href="http://www.mrrace.com">www.mrrace.com=0A href="http://www.matronics.com/contribution">http://www.matronics.com/chr ef="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com /Navigator?Yak-List=0A href="http://forums.matronics.com">http://forums.matronics.com=0A =0A =0A =0A =0A =0A =0A _blank">www.aeroelectric.com=0A " target="_blank">www.buildersbooks.com=0A ="_blank">www.homebuilthelp.com=0A ="_blank">www.mypilotstore.com=0A ank">www.mrrace.com=0A ="_blank">http://www.matronics.com/contribution=0A rget="_blank">http://www.matronics.com/Navigator?Yak-List=0A http://forums.matronics.com=0A =0A =0A =0A =0A =0A D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=0A ot=3B">www.aeroelectric.com=0A books.com"">www.buildersbooks.com=0A quot=3B">www.homebuilthelp.com=0A quot=3B">www.mypilotstore.com=0A ">www.mrrace.com=0A ot=3B">http://www.matronics.com/contribution=0A D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=0A ist"">http://www.matronics.com/Navigator?Yak-List=0A D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=0A //forums.matronics.com=0A D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=0A =0A =0A =0A =0A ============0A ============0A ============0A ============0A =0A ________________________________ Message 7 _____________________________________ Time: 07:37:36 AM PST US Subject: Yak-List: Yak 18T Attitude indicator From: Jerry Painter Have an -18T attitude indicator that starts to erect but then cages. When reset it starts up again and then cages. The -18T manual calls for attaching a piece of test equipment for checking operation but no diagnostics or repairs. Does anyone know of an instrument shop that works on these instruments? Instruments for sale? Jerry Painter Wild Blue Aviation FlyWBA.com FlyWBA@gmail.com 425-876-0865 ________________________________ Message 8 _____________________________________ Time: 08:00:08 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Yak 18T Attitude indicator It is my understanding they are pretty much unrepairable (according to Termikas), because some of the internal components are no longer available. Although you may find a used one somewhere, the best solution is to go with a Dynon D6 or D10. A. Dennis Savarese 334-546-8182 (mobile) www.yak-52.com Skype - Yakguy1 On 1/21/2015 9:36 AM, Jerry Painter wrote: > > Have an -18T attitude indicator that starts to erect but then cages. > When reset it starts up again and then cages. The -18T manual calls > for attaching a piece of test equipment for checking operation but no > diagnostics or repairs. Does anyone know of an instrument shop that > works on these instruments? Instruments for sale? > > Jerry Painter > Wild Blue Aviation > FlyWBA.com > FlyWBA@gmail.com > 425-876-0865 > > * > > > * ________________________________ Message 9 _____________________________________ Time: 09:09:01 AM PST US Subject: Re: Yak-List: CJ engine parts From: doug sapp George, I stock most all 260 and 285 hp engine parts, what are you looking for? Doug On Wed, Jan 21, 2015 at 6:04 AM, George S. Coy wrote: > Hey guys, I have a client looking for AI14RA engine parts. Are the engine > parts generally available? > > The Chinese CJ6 engine was a originally a license built AI14RA engine. The > Motorstar factory has disassembled several of the Chinese engines and has > found the parts identical to the AI14 engine. > > > *George Coy* > > *CAS Ltd.* > > *629 Airport Rd.* > > *Swanton VT 05488 USA* > > *802-868-5633 <802-868-5633> off* > > *802-363-5782 <802-363-5782> cell* > > *802-868-4465 <802-868-4465> Fax* > > *george.coy@gmail.com * > > *http://coyacft.com/ * > > *SKYPE george.coy* > > > * > > > * > > ________________________________ Message 10 ____________________________________ Time: 09:17:33 AM PST US From: "George S. Coy" Subject: RE: Yak-List: CJ engine parts Not sure if the Chinese and Polish/Russians used the same part numbers but here they are: 1. Exhaust valve 10.04.12.K 10 UN 2. Seal the suction pipe 10.04.46 27 UN 3. Sealing ring 10.04.26 36 UN 4. Sealing ring chromed 14.05.S13 R1 or R2 72 UN 5. Scrapper ring 14.05.514 R1 or R2 36 UN 6. Piston ring 14.05.517 R1 or R2 36 UN 7. Seal 10.09.09.6 50 UN 8. Diafragma to K-14A 12 UN 9. Deflector head 14.36.590 18 UN 10. Magnetos to AI-14RA 2 UN 11. Engine AI-14RA(oh, after oh or used) 1 UN 12. Spark plugs to AI-14RA 50 UN From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of doug sapp Sent: Wednesday, January 21, 2015 12:08 PM Subject: Re: Yak-List: CJ engine parts George, I stock most all 260 and 285 hp engine parts, what are you looking for? Doug On Wed, Jan 21, 2015 at 6:04 AM, George S. Coy wrote: Hey guys, I have a client looking for AI14RA engine parts. Are the engine parts generally available? The Chinese CJ6 engine was a originally a license built AI14RA engine. The Motorstar factory has disassembled several of the Chinese engines and has found the parts identical to the AI14 engine. George Coy CAS Ltd. 629 Airport Rd. Swanton VT 05488 USA 802-868-5633 off 802-363-5782 cell 802-868-4465 Fax george.coy@gmail.com http://coyacft.com/ SKYPE george.coy _blank">www.aeroelectric.com .com" target="_blank">www.buildersbooks.com ="_blank">www.homebuilthelp.com ="_blank">www.mypilotstore.com ank">www.mrrace.com _blank">http://www.matronics.com/contribution et="_blank">http://www.matronics.com/Navigator?Yak-List tp://forums.matronics.com ________________________________ Message 11 ____________________________________ Time: 12:52:34 PM PST US Subject: Yak-List: Re: Stainless Gill Vane Screws From: "Sonic1" I still have several sets left if anyone needs them. Thanks, Jeff. 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