---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 04/09/10: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:28 AM - Emailing: pic 143lr.jpg (Chris Wise) 2. 03:33 AM - Re: Emailing: pic 143lr.jpg (cjpilot710@aol.com) 3. 05:06 AM - Re: Emailing: pic 143lr.jpg (A. Dennis Savarese) 4. 09:46 AM - Re: Yak 52 Starter Sequence? (Gill Gutierrez) 5. 03:44 PM - Fw: Fw: Yuris Night (doug sapp) 6. 06:11 PM - Re: Emailing: pic 143lr.jpg (Yak Pilot) 7. 09:32 PM - Re: Fw: Fw: Yuris Night (Jan Mevis) ________________________________ Message 1 _____________________________________ Time: 02:28:59 AM PST US From: "Chris Wise" Subject: Yak-List: Emailing: pic 143lr.jpg G'Day All, I removed the smoke nozzles from the 18 T to replace with smoke nozzles with a smaller hole to try and get a little bit more duration with Smoke on. The right hand nozzle was clean and free of any deposits. The left nozzle had to be pried out of the exhaust as it was deposited with very light grey carbon which may indicate lean burn. Right hand exhaust good colour, left exhaust lots of very light grey carbon. Can anyone please explain this? I have attached photo to show smoke. It really pumps it out. Thanks and cheers, Chris. The message is ready to be sent with the following file or link attachments: pic 143lr.jpg ________________________________ Message 2 _____________________________________ Time: 03:33:25 AM PST US Subject: Re: Yak-List: Emailing: pic 143lr.jpg From: cjpilot710@aol.com WAG here. Could it be that the cylinders on the left side are further fro m the carburetor in relation to the rotation of the super charger? I've never thought to look at this before. Jim"Pappy" Goolsby -----Original Message----- From: Chris Wise Sent: Fri, Apr 9, 2010 5:25 am Subject: Yak-List: Emailing: pic 143lr.jpg G'Day All, I removed the smoke nozzles from the 18 T to replace with smoke nozzles wi th a smaller hole to try and get a little bit more duration with Smoke on. The right hand nozzle was clean and free of any deposits. The left nozzle had to be pried out of the exhaust as it was deposited wit h very light grey carbon which may indicate lean burn. Right hand exhaust good colour, left exhaust lots of very light grey carbo n. Can anyone please explain this? I have attached photo to show smoke. It really pumps it out. Thanks and cheers, Chris. The message is ready to be sent with the following file or link attachment s: pic 143lr.jpg ding or receiving certain types of file attachments. Check your e-mail se curity ________________________________ Message 3 _____________________________________ Time: 05:06:23 AM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Emailing: pic 143lr.jpg It is possible it is a lean burn. Did you pull the plugs and compare left to right? You may want to remove each of the exhaust sections and look in the individual tubes to see if one cylinder is more gray than the other. Be sure to check each intake gland nut and intake collar for security. They must be completely tight. It is also possible one of the intake gland nut seals is deteriorated or damaged which would permit air to be sucked in and lean that particular cylinder. Just my 2 cents. Dennis ----- Original Message ----- From: cjpilot710@aol.com To: yak-list@matronics.com Sent: Friday, April 09, 2010 5:26 AM Subject: Re: Yak-List: Emailing: pic 143lr.jpg WAG here. Could it be that the cylinders on the left side are further from the carburetor in relation to the rotation of the super charger? I've never thought to look at this before. Jim"Pappy" Goolsby -----Original Message----- From: Chris Wise To: yak-list@matronics.com Sent: Fri, Apr 9, 2010 5:25 am Subject: Yak-List: Emailing: pic 143lr.jpg G'Day All, I removed the smoke nozzles from the 18 T to replace with smoke nozzles with a smaller hole to try and get a little bit more duration with Smoke on. The right hand nozzle was clean and free of any deposits. The left nozzle had to be pried out of the exhaust as it was deposited with very light grey carbon which may indicate lean burn. Right hand exhaust good colour, left exhaust lots of very light grey carbon. Can anyone please explain this? I have attached photo to show smoke. It really pumps it out. Thanks and cheers, Chris. The message is ready to be sent with the following file or link attachments: pic 143lr.jpg ding or receiving certain types of file attachments. Check your e-mail security ________________________________ Message 4 _____________________________________ Time: 09:46:53 AM PST US From: "Gill Gutierrez" Subject: RE: Yak-List: Yak 52 Starter Sequence? If you have access to a Housai manual, it provides better instructions as it has a diagram. The difference relates to prop gearing. I have reset mine twice after engine disassembly and it's not a big deal. Gill From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Yak Pilot Sent: Thursday, April 08, 2010 5:50 PM Subject: RE: Yak-List: Yak 52 Starter Sequence? GOOD FOR YOU! Good job in finding the proper task cards! Let me run my mouth one last time. First, adjusting this thing is a real pain in the ass. It is hard to get to the nuts and stuff to remove it, it requires you to get the engine set up perfectly, and then insert the thing back in and tighten it down. I have been involved in adjusting it twice, and it was a real ass kicker. Next... make darn sure... let me correct that: MAKE DAMN SURE that you know this is the problem before you remove it from the engine and start trying to re-adjust it. Once you remove it, you have no choice but to finish the job. I am not kidding when I tell you that a flow restriction in the air system will cause the exact same problem that you are reporting. Yes, it is most likely that someone messed with this in the past, and just could never get it right again, and this is what you have wrong now. (I.E. A misadjusted Air Distributor) The odds are good that this is your problem, but as a Tech Rep, my mind always considers the alternatives and you can never rule out ANYTHING unless you verify it as a "known good". That said, if your AIR FLOW to this unit is low, it will do the exact same thing you are now reporting. That said, if I was there, I would take my nitrogen bottle with a good regulator and would connect it DIRECTLY to the line going to the air distributor and would set it to 730 PSI and would see what happened when I turned it on. If the engine does the exact same thing, then you are sure that the distributor is the problem. However, if the engine spins right around perfectly, then you can STOP RIGHT THERE and say "BOY OH BOY IT IS NOT THE AIR DISTRIBUTOR" and you have saved yourself one HUGE amount of work. Consider this advice carefully. Best regards, Mark Bitterlich --- On Thu, 4/8/10, Bill Lang wrote: From: Bill Lang Subject: RE: Yak-List: Yak 52 Starter Sequence? Mark Further to my last.. found the ref on George's web site M14 maint Manual, task card 204. Hope my guy can do it. Thanks Bill > Subject: RE: Yak-List: Yak 52 Starter Sequence? > Date: Thu, 8 Apr 2010 12:53:38 -0400 > From: mark.bitterlich@navy.mil > To: yak-list@matronics.com > MALS-14 64E" > > > > MOST LIKELY: Your air distributor is out of alignment. > > This is a tedious and exacting job. VERY TEDIOUS AND VERY EXACTING! > > There is a little gear in there with many little itsy tiny teeth that > has to be JUST right. > > I would suggest you contact Dennis Savarese directly, I believe he has > the procedure written out and ready to send. It is addressed in the > maint. Cards for the engine. It might also be at George Coy's web site. > His site is also a wealth of knowledge. > > It is much MUCH more complicated than just spinning it 180 degrees, SAD > TO SAY! Without the instructions, I have seen people mess with this > thing for days. DAYS! > > Just FYI, the thing does more than just put air into a cylinder to make > the piston move. When it is perfectly set up, it not only puts air into > one cylinder to push the piston down, it also sends air to the lower > cylinders WITH THE EXHAUST VALVES OPEN to help push any oil that is in > there right out the exhaust. But it has to be timed PERFECTLY to the > engine, just like the ignition distributor on your car, or the mag on > your airplane. Please excuse the language on the net, but it is a real > SOB to adjust. > > I am sorry that I do not have the instructions to give you, or have them > memorized... But I will tell you to not even think about messing with it > until you have the instructions fully in hand and understand them > perfectly. > > Mark Bitterlich > > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bill Lang > Sent: Thursday, April 08, 2010 6:30 AM > To: yak-list@matronics.com > Subject: Yak-List: Yak 52 Starter Sequence? > > > > > ________________________________ > > To: yak-list@matronics.com > > Technical advice needed ref starter. I have just purchesed a Yak52 that > has apparently had a starter problem since a new engine was installed. > It seems that there is a sequencing problem of the air going into the > cylinders. It turns a few degrees on start, and then air appears to blow > straight through the cylinder to exhaust. Sometimes it turns backwards. > Would it be possible to install the starter spider 180 out? My mechanic > and I would appreciate if anyone has faced this problem and found a fix. > Is there a mark on the spider or foolproof way of installing the spider > that was overlooked by the original mechanics > > Taa > > Bill > > > > ________________________________ > > Looking for a hot date? View photos of singles in your area! >====================== &g=========== > > > _____ /direct/01/" rel=nofollow target=_blank>Browse profiles for FREE! =nofollow target=_blank>http://www.matronics.com/Navigator?Yak-List et=_blank>http://forums.matronics.com llow target=_blank>http://www.matronics.com/contribution ________________________________ Message 5 _____________________________________ Time: 03:44:14 PM PST US Subject: Yak-List: Fwd: Fw: Yuris Night From: doug sapp ---------- Forwarded message ---------- From: Subject: Fw: Yuris Night , geneL3c@optonline.net, geneL3c@verizon.net, Craig Baker , Cyrus Kissling , doug sapp , Fluxtoo@aol.com, Gdinfloatfly@aol.com, George Coy < george@gesoco.com>, JohnSmith , okeefeco@aol.com, Peter Korsell , Pierre Lacroix < placroix@laas.fr>, robaniel@aol.com, Rojqb2@aol.com, Saso Knez < saso@aereform.si>, sergey , Sergey Isatchenko < kazagro@gmail.com>, Steve Culp , Tom Barnes < t.barnes@shaw.ca>, Vas Tur , William Nicholson < starairmotive@yahoo.com>, =D0=9C=D0=B0=D0=BA=D1=81 , =D0=AE=D1=D0=B8=D0=B9 < Tolik-Kam@yandex.ru>, =D0=AE=D1=D0=B8=D0=B9 =D0=A1=D0=BA=D1=D1=8B=D0 =BB=D1=8C , yu zhru < aircraft_technology@yahoo.com>, Yuri Suprun OK people, time to be Russian for a night. Wear something Russian and bring something Russian as we celebrate the first man in space and the Yak 18 tha t started it all for him. Party is in hanger 12 and will start around 4 or 5 or 6 depending on weather we are flying or not. Either way come down when you can and enjoy some vodka and watch some Russian videos And if you are lucky sit in a real Yak 18 for a photo Just to clarify its Sunday the 11th at Hanger 12 Bayport (23N) from about 5pm onward Stu ________________________________ Message 6 _____________________________________ Time: 06:11:04 PM PST US From: Yak Pilot Subject: Re: Yak-List: Emailing: pic 143lr.jpg Don't run me up the flagpole and disc me please, but-could this be LEAD a nd not carbon?- The dynamics of airflow on the Russian aircraft impacts t he evacuation of the exhaust and the velocity that ends up exiting the tube s.- Lead is in a gas state as is leaves the cylinder and will revert back to a solid as soon as it sees enough of a temperature shift.- It might j ust be possible that all you are seeing is normal lead precipitation-due to a slighter cooler exhaust on one side more than the other.- Lead is no rmally grey in when it reverts back to a solid from the exhaust.- - This is just a pure wild ass guess.- But if the engine has time on it, is running properly, and has good compression, I would not get too upset abou t this.- If you want to get serious, get a borescope and look inside the cylinders.- Look very carefully at the exhaust valve.- If the engine is running lean on one cylinder or more, you'll see it.- But again my WAG i s that this is nothing to worry about.- - Flame retardant suit now in place.- - Mark Bitterlich --- On Fri, 4/9/10, Chris Wise wrote: From: Chris Wise Subject: Yak-List: Emailing: pic 143lr.jpg G'Day All, - I removed the smoke nozzles from the 18 T to replace with smoke nozzles wit h a smaller hole to try and get a little bit more duration with Smoke on. - The right hand nozzle was clean and free of any deposits. The left nozzle had to be pried out of the exhaust as it was deposited with very light grey carbon which may indicate lean burn. Right hand exhaust good colour,-left exhaust lots of very light grey carb on. - Can anyone please explain this? - I have attached photo to show smoke. It really pumps it out. - Thanks and cheers, Chris. - - -The message is ready to be sent with the following file or link attachme nts: pic 143lr.jpg ing or receiving certain types of file attachments.- Check your e-mail se curity ________________________________ Message 7 _____________________________________ Time: 09:32:54 PM PST US From: "Jan Mevis" Subject: RE: Yak-List: Fwd: Fw: Yuris Night According to the logbooks, Yoeri Gagarin flew with this beautifully restaured Yak 18, owned by Jean-Michel Legrand in Belgium: Jan RA1453K YK52 From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of doug sapp Sent: zaterdag 10 april 2010 12:43 Subject: Yak-List: Fwd: Fw: Yuris Night ---------- Forwarded message ---------- From: Subject: Fw: Yuris Night Coy , geneL3c@optonline.net, geneL3c@verizon.net, Craig Baker , Cyrus Kissling , doug sapp , Fluxtoo@aol.com, Gdinfloatfly@aol.com, George Coy , JohnSmith , okeefeco@aol.com, Peter Korsell , Pierre Lacroix , robaniel@aol.com, Rojqb2@aol.com, Saso Knez , sergey , Sergey Isatchenko , Steve Culp , Tom Barnes , Vas Tur , William Nicholson , =D0=9C=D0=B0=D0=BA=D1=81 , =D0=AE=D1=D0=B8=D0=B9 , =D0=AE=D1=D0=B8=D0=B9 =D0=A1=D0=BA=D1=D1=8B=D0=BB=D1=8C , yu zhru , Yuri Suprun OK people, time to be Russian for a night. Wear something Russian and bring something Russian as we celebrate the first man in space and the Yak 18 that started it all for him. Party is in hanger 12 and will start around 4 or 5 or 6 depending on weather we are flying or not. Either way come down when you can and enjoy some vodka and watch some Russian videos And if you are lucky sit in a real Yak 18 for a photo Just to clarify its Sunday the 11th at Hanger 12 Bayport (23N) from about 5pm onward Stu ------------------------------------------------------------------------------------- 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.