---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Thu 05/19/11: 16 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:08 AM - Yak brake pads (psb777) 2. 04:07 AM - Re: Yak brake pads (Richard Goode) 3. 04:19 AM - Re: 55M Covers (Eric Wobschall) 4. 04:29 AM - Re: Yak brake pads (psb777) 5. 04:32 AM - Re: Yak brake pads (A. Dennis Savarese) 6. 05:07 AM - Re: 55M Covers (andrew richards) 7. 05:24 AM - Re: 55M Covers (Thomas Geoghegan) 8. 09:28 AM - Re: cowls for Yak 18T (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E) 9. 09:48 AM - Re: cowls for Yak 18T (Richard Goode) 10. 10:12 AM - Re: cowls for Yak 18T (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E) 11. 10:50 AM - Re: Air compressor (Gill Gutierrez) 12. 11:34 AM - Re: Air compressor (A. Dennis Savarese) 13. 12:28 PM - Re: Air compressor (gill.g@gpimail.com) 14. 01:22 PM - aircraft covers (Eric Wobschall) 15. 04:18 PM - Re: aircraft covers (andrew richards) 16. 05:22 PM - Re: aircraft covers (Eric Wobschall) ________________________________ Message 1 _____________________________________ Time: 03:08:05 AM PST US Subject: Yak-List: Yak brake pads From: "psb777" The engineering workshop which maintains my Yak-18T recently purchased some brake pads to fit my aircraft and others. They are at least 1mm too thick. They are finding it impossible to fit the brake pad assembly into the brake drum. I think I was told the same problem will be experienced on Yak-52 (and other Yak) aircraft they maintain as the brakes are the same. Is that correct? Yak-18T and -52 and -50 brakes are all the same? Anyone else experiencing this problem? I'm currently experiencing weak brakes and I'm told I need new pads. Anyone got some known-to-be-good regular thickness brake pads for sale? -------- Paul Beardsell HA-YAB http://beardsell.com/flying/ha-yab Yak-18T http://beardsell.com/flying/yak18t Read this topic online here: http://forums.matronics.com/viewtopic.php?p=340367#340367 ________________________________ Message 2 _____________________________________ Time: 04:07:14 AM PST US From: "Richard Goode" Subject: RE: Yak-List: Yak brake pads Why not grind off the excess thickness-a simple job!! Richard Goode Rhodds Farm Lyonshall Hereford HR5 3LW Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of psb777 Sent: 19 May 2011 11:05 Subject: Yak-List: Yak brake pads The engineering workshop which maintains my Yak-18T recently purchased some brake pads to fit my aircraft and others. They are at least 1mm too thick. They are finding it impossible to fit the brake pad assembly into the brake drum. I think I was told the same problem will be experienced on Yak-52 (and other Yak) aircraft they maintain as the brakes are the same. Is that correct? Yak-18T and -52 and -50 brakes are all the same? Anyone else experiencing this problem? I'm currently experiencing weak brakes and I'm told I need new pads. Anyone got some known-to-be-good regular thickness brake pads for sale? -------- Paul Beardsell HA-YAB http://beardsell.com/flying/ha-yab Yak-18T http://beardsell.com/flying/yak18t Read this topic online here: http://forums.matronics.com/viewtopic.php?p=340367#340367 ----------------------------------------------- This message has been scanned for viruses and dangerous content by the Invictawiz MailScanner and is believed to be clean. http://www.invictawiz.com ----------------------------------------------- ________________________________ Message 3 _____________________________________ Time: 04:19:55 AM PST US From: Eric Wobschall Subject: Re: Yak-List: 55M Covers Bruce's Custom Covers. On May 19, 2011, at 12:26 AM, andrew richards wrote: > Ive just been transferred interstate for work and unfortunately I am going to have to keep my 55M outside for a while, hangar space close by is rare Im in Brisbane (Australia) and the weather is usually hot or raining. I was wondering if anyone knew of a source for covers? I would be looking at canopy and empennage . > > Any help would be highly appreciated. > > > Andrew > > > ________________________________ Message 4 _____________________________________ Time: 04:29:53 AM PST US Subject: Yak-List: Re: Yak brake pads From: "psb777" Ah, Richard, yes. But no one wants to do that as the composition of the brake pads is, err, unknown, shall we say? -------- Paul Beardsell HA-YAB http://beardsell.com/flying/ha-yab Yak-18T http://beardsell.com/flying/yak18t Read this topic online here: http://forums.matronics.com/viewtopic.php?p=340377#340377 ________________________________ Message 5 _____________________________________ Time: 04:32:05 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Yak brake pads Yes, the Yak 52 and Yak 50 are basically the same. So are the Nanchang CJ6 brake pads. I ran into this once before when I replaced a set of pads and installed new brake drums at the same time. The first set of new drums were thicker (inside diameter was smaller). I discussed this with Doug Sapp, our outstanding CJ6 parts guru, since the drums on the CJ are interchangeable with the Yak 52. What Doug found was there actually are some "undersized" brake drums (smaller inside diameter) and I apparently got 2 of them. Doug exchanged the two new ones I had for two other new drums with a slightly larger ID and that solved the problem. As for the weak brakes, assuming the brake pads meet the minimum thickness specification, if the felt grease seal in the rear of the brake drum assembly is broken or missing, the grease from the rear bearing spreads by centrifugal force out over the brake pads. Evidence of grease on the brake pads is glazed brake pads and very shinny "hot spot" on the inside of the brake drum and brake dust caked grease around the metal back plate behind the rear bearing. The glazed brake pads will definitely cause the feel of weak brakes. The solution is to remove the brake pads and wash them in avgas as avgas or automotive brake cleaner as will this will not leave an oily residue on the pads. Also wash the inside of the brake drum. Clean the greasy brake dust from the brake assembly. Lightly sand the brake pads with 60-80 grit sandpaper to refresh the pads and reinstall. Finally, be absolutely certain to install new felt grease seals in both the front and rear of the brake drum assembly. Hope this helps, Dennis On 5/19/2011 5:05 AM, psb777 wrote: > --> Yak-List message posted by: "psb777" > > The engineering workshop which maintains my Yak-18T recently purchased some brake pads to fit my aircraft and others. They are at least 1mm too thick. They are finding it impossible to fit the brake pad assembly into the brake drum. I think I was told the same problem will be experienced on Yak-52 (and other Yak) aircraft they maintain as the brakes are the same. > > Is that correct? Yak-18T and -52 and -50 brakes are all the same? > > Anyone else experiencing this problem? > > I'm currently experiencing weak brakes and I'm told I need new pads. Anyone got some known-to-be-good regular thickness brake pads for sale? > > -------- > Paul Beardsell > HA-YAB http://beardsell.com/flying/ha-yab > Yak-18T http://beardsell.com/flying/yak18t > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=340367#340367 > > ________________________________ Message 6 _____________________________________ Time: 05:07:10 AM PST US Subject: Re: Yak-List: 55M Covers From: andrew richards Thanks Eric. Have used Bruce's a few times now, last lot took about 3 and a half months. Kind of need something a touch sooner. I saw some on a You Tube Video, may have been the UK somewhere, can't recall. On 5/19/11, Eric Wobschall wrote: > Bruce's Custom Covers. > > > On May 19, 2011, at 12:26 AM, andrew richards wrote: > >> Ive just been transferred interstate for work and unfortunately I am going >> to have to keep my 55M outside for a while, hangar space close by is rare >> Im in Brisbane (Australia) and the weather is usually hot or raining. I >> was wondering if anyone knew of a source for covers? I would be looking >> at canopy and empennage . >> >> Any help would be highly appreciated. >> >> >> Andrew >> >> >> > > ________________________________ Message 7 _____________________________________ Time: 05:24:51 AM PST US From: Thomas Geoghegan Subject: Re: Yak-List: 55M Covers I just got my cover from Bruce for my CJ. They told me two weeks but it took four. I did order it the same week as Sun-N-Fun though, and they told me they got a lot of orders at that time and that was the reason for the delay. andrew richards wrote: Thanks Eric. Have used Bruce's a few times now, last lot took about 3 and a half months. Kind of need something a touch sooner. I saw some on a You Tube Video, may have been the UK somewhere, can't recall. On 5/19/11, Eric Wobschall wrote: > Bruce's Custom Covers. > > > On May 19, 2011, at 12:26 AM, andrew richards wrote: > >> Ive just been transferred interstate for work and unfortunately I am going >> to have to keep my 55M outside for a while, hangar space close by is rare >> Im in Brisbane (Australia) and the weather is usually hot or raining. I >> was wondering if anyone knew of a source for covers? I would be looking >> at canopy and empennage . >> >> Any help would be highly appreciated. >> >> >> Andrew >> >> >> > > ________________________________ Message 8 _____________________________________ Time: 09:28:12 AM PST US Subject: RE: Yak-List: cowls for Yak 18T From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" Some of the YAK-50 cowls were flush riveted and are rare and hard to come by. Other than that, they are exactly the same. Mark Bitterlich ________________________________ From: owner-yak-list-server@matronics.com on behalf of Bill Geipel Sent: Wed 5/18/2011 10:22 AM Subject: Re: Yak-List: cowls for Yak 18T Are the same as all yaks? I have a set from a yak50. Upper and lower cowl. Blue Sky's On May 18, 2011, at 1:25 AM, "Chris Wise" wrote: G'Day All, I urgently require a set of cowls for my Yak 18T as I had a leg collapse on landing and it made a mess of the cowls plus brackets from the front of the engine to the front ring that locates the cowls and also locates the outer fixing for the louvers. Any help would be greatly appreciated. Thanks and cheers, Chris. ================================== ef="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-List ================================== ums.matronics.com">http://forums.matronics.com ================================== http://www.matronics.com/contribution">http://www.matronics.com/contribution ================================== ________________________________ Message 9 _____________________________________ Time: 09:48:15 AM PST US From: "Richard Goode" Subject: RE: Yak-List: cowls for Yak 18T Sorry-not true!! The 52 cowls can be fitted on the 50,but neither can be put on the 18T whose cowls significantly wider at the rear. Richard Goode Rhodds Farm Lyonshall Hereford HR5 3LW Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E Sent: 19 May 2011 17:24 Subject: RE: Yak-List: cowls for Yak 18T MALS-14 64E" Some of the YAK-50 cowls were flush riveted and are rare and hard to come by. Other than that, they are exactly the same. Mark Bitterlich ________________________________ From: owner-yak-list-server@matronics.com on behalf of Bill Geipel Sent: Wed 5/18/2011 10:22 AM Subject: Re: Yak-List: cowls for Yak 18T Are the same as all yaks? I have a set from a yak50. Upper and lower cowl. Blue Sky's On May 18, 2011, at 1:25 AM, "Chris Wise" wrote: G'Day All, I urgently require a set of cowls for my Yak 18T as I had a leg collapse on landing and it made a mess of the cowls plus brackets from the front of the engine to the front ring that locates the cowls and also locates the outer fixing for the louvers. Any help would be greatly appreciated. Thanks and cheers, Chris. ================================== ef="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Na vigator?Yak-List ================================== ums.matronics.com">http://forums.matronics.com ================================== http://www.matronics.com/contribution">http://www.matronics.com/contribution ================================== ----------------------------------------------- This message has been scanned for viruses and dangerous content by the Invictawiz MailScanner and is believed to be clean. http://www.invictawiz.com ----------------------------------------------- ________________________________ Message 10 ____________________________________ Time: 10:12:55 AM PST US Subject: RE: Yak-List: cowls for Yak 18T From: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" No need to apologize RIchard. I know nothing about 18's. My comment... poorly written as it was, was meant to say: "There is no difference between 50 and 52 cowls". Sorry for the confusion! Thanks for the correction. Mark ________________________________ From: owner-yak-list-server@matronics.com on behalf of Richard Goode Sent: Thu 5/19/2011 12:44 PM Subject: RE: Yak-List: cowls for Yak 18T Sorry-not true!! The 52 cowls can be fitted on the 50,but neither can be put on the 18T whose cowls significantly wider at the rear. Richard Goode Rhodds Farm Lyonshall Hereford HR5 3LW Tel: +44 (0) 1544 340120 Fax: +44 (0) 1544 340129 www.russianaeros.com -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E Sent: 19 May 2011 17:24 Subject: RE: Yak-List: cowls for Yak 18T MALS-14 64E" Some of the YAK-50 cowls were flush riveted and are rare and hard to come by. Other than that, they are exactly the same. Mark Bitterlich ________________________________ From: owner-yak-list-server@matronics.com on behalf of Bill Geipel Sent: Wed 5/18/2011 10:22 AM Subject: Re: Yak-List: cowls for Yak 18T Are the same as all yaks? I have a set from a yak50. Upper and lower cowl. Blue Sky's On May 18, 2011, at 1:25 AM, "Chris Wise" wrote: G'Day All, I urgently require a set of cowls for my Yak 18T as I had a leg collapse on landing and it made a mess of the cowls plus brackets from the front of the engine to the front ring that locates the cowls and also locates the outer fixing for the louvers. Any help would be greatly appreciated. Thanks and cheers, Chris. ================================== ef="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Na vigator?Yak-List ================================== ums.matronics.com">http://forums.matronics.com ================================== http://www.matronics.com/contribution">http://www.matronics.com/contribution ================================== ----------------------------------------------- This message has been scanned for viruses and dangerous content by the Invictawiz MailScanner and is believed to be clean. http://www.invictawiz.com ----------------------------------------------- ________________________________ Message 11 ____________________________________ Time: 10:50:28 AM PST US From: "Gill Gutierrez" Subject: RE: Yak-List: Air compressor Tom, No, balance is will be wrong. Also, there is no real advantage, valves & bore are same size, only exhaust nuts are larger. One advantage is sodium cooled exhaust valve which can be overcome by using modern high temp alloy valves. Gill -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Tom Elliott Sent: Wednesday, May 18, 2011 9:41 PM Subject: Yak-List: Air compressor Question can you use a Russian cylinder and piston on a Chinese's lower unit? Tom Elliott CJ-6A NX63727 777 Quartz Ave PMB 7004 Sandy Valley NV 89019 Cell 702-595-2680 ________________________________ Message 12 ____________________________________ Time: 11:34:58 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Air compressor Gill, I think Tom's talking about the air compressor components. Not an engine cylinder. Dennis On 5/19/2011 12:46 PM, Gill Gutierrez wrote: > --> Yak-List message posted by: "Gill Gutierrez" > > Tom, > > No, balance is will be wrong. Also, there is no real advantage, valves& > bore are same size, only exhaust nuts are larger. One advantage is sodium > cooled exhaust valve which can be overcome by using modern high temp alloy > valves. > > Gill > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Tom Elliott > Sent: Wednesday, May 18, 2011 9:41 PM > To: yak-list@matronics.com > Subject: Yak-List: Air compressor > > --> Yak-List message posted by: "Tom Elliott" > > Question can you use a Russian cylinder and piston on a Chinese's lower > unit? > > > Tom Elliott > CJ-6A NX63727 > 777 Quartz Ave > PMB 7004 > Sandy Valley NV > 89019 > Cell 702-595-2680 > > ________________________________ Message 13 ____________________________________ Time: 12:28:03 PM PST US Subject: Re: Yak-List: Air compressor From: gill.g@gpimail.com You are right Gill ------Original Message------ From: A. Dennis Savarese Sender: owner-yak-list-server@matronics.com ReplyTo: yak-list@matronics.com Subject: Re: Yak-List: Air compressor Sent: May 19, 2011 11:31 AM Gill, I think Tom's talking about the air compressor components. Not an engine cylinder. Dennis On 5/19/2011 12:46 PM, Gill Gutierrez wrote: > --> Yak-List message posted by: "Gill Gutierrez" > > Tom, > > No, balance is will be wrong. Also, there is no real advantage, valves& > bore are same size, only exhaust nuts are larger. One advantage is sodium > cooled exhaust valve which can be overcome by using modern high temp alloy > valves. > > Gill > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Tom Elliott > Sent: Wednesday, May 18, 2011 9:41 PM > To: yak-list@matronics.com > Subject: Yak-List: Air compressor > > --> Yak-List message posted by: "Tom Elliott" > > Question can you use a Russian cylinder and piston on a Chinese's lower > unit? > > > Tom Elliott > CJ-6A NX63727 > 777 Quartz Ave > PMB 7004 > Sandy Valley NV > 89019 > Cell 702-595-2680 > > Sent on the Sprint Now Network from my BlackBerry ________________________________ Message 14 ____________________________________ Time: 01:22:36 PM PST US Subject: Yak-List: aircraft covers From: Eric Wobschall Andrew: I've ordered a couple of covers from them and it was more like a week or so to get them. I just called Adam at Bruce's and he said because of your circumstances (no hangar all of a sudden), he could bump you up in production to under 2 weeks. I'll forward his email to you off list in case you're interested. -Eric ________________________________ Message 15 ____________________________________ Time: 04:18:25 PM PST US Subject: Re: Yak-List: aircraft covers From: andrew richards Thanks Eric, I have been in contact with Adam who has responded nice and quickly. They should be done in about a week. Thanks for your help. Andrew On Fri, May 20, 2011 at 6:19 AM, Eric Wobschall wrote: > > Andrew: > > I've ordered a couple of covers from them and it was more like a week or so > to get them. I just called Adam at Bruce's and he said because of your > circumstances (no hangar all of a sudden), he could bump you up in > production to under 2 weeks. I'll forward his email to you off list in case > you're interested. > > -Eric > > ________________________________ Message 16 ____________________________________ Time: 05:22:23 PM PST US From: Eric Wobschall Subject: Re: Yak-List: aircraft covers Great!! On May 19, 2011, at 7:15 PM, andrew richards wrote: > Thanks Eric, I have been in contact with Adam who has responded nice and quickly. They should be done in about a week. > > Thanks for your help. > > > Andrew > > On Fri, May 20, 2011 at 6:19 AM, Eric Wobschall wrote: > > Andrew: > > I've ordered a couple of covers from them and it was more like a week or so to get them. I just called Adam at Bruce's and he said because of your circumstances (no hangar all of a sudden), he could bump you up in production to under 2 weeks. I'll forward his email to you off list in case you're interested. > cription, > www.matronics.com/Navigator?Yak-List" target="_blank">http://www.matronics.com/Navigator?Yak-List > ronics.com/" target="_blank">http://forums.matronics.com > Matt Dralle, List Admin. > ==== > > > > > > > ------------------------------------------------------------------------------------- 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.