---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sun 07/02/06: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:57 AM - Re: Air start valve trouble (Craig Payne) 2. 10:35 AM - Oil Temperature Guage on Yak 55M (Royden Heays) 3. 11:58 AM - Breaker Points (Frank Haertlein) 4. 06:41 PM - Re: Breaker Points (A. Dennis Savarese) 5. 06:41 PM - Re: Oil Temperature Guage on Yak 55M (A. Dennis Savarese) 6. 10:10 PM - Re: Oil Temperature Guage on Yak 55M (Walter Lannon) ________________________________ Message 1 _____________________________________ Time: 03:57:48 AM PST US From: "Craig Payne" Subject: Yak-List: Re: Air start valve trouble > >The solenoid assembly comes off, but the other end cap seems fixed. > > Well, not fixed but frozen with rust. Takes a big vise and a bigger wrench. The problem is common but I've never heard of an air start valve acting like this without first causing start problems. Since the valve is installed "upside down", moisture will accumulate there and rust up the works. I have 2 different start valves and swap 'em out from time to time and OH as best I can. At maintenance time I'll load up the incoming air line (on the bottom) with air tool oil. Sooner or later the lower workings will wear out from me removing rust and then Doug will get a call for a new unit. Craig Payne cpayne@joimail.com ________________________________ Message 2 _____________________________________ Time: 10:35:27 AM PST US From: "Royden Heays" Subject: Yak-List: Oil Temperature Guage on Yak 55M --> Yak-List message posted by: "Royden Heays" After many hundereds of hours of well behaved indications the oil temperature guage on my Yak 55M has begun to flicker right up to full deflection. This occurred for the first time yesterday on start up when the oil was known to be cool. The guage is the standard Russian guage that goes with the M14P on all the Yaks I have seen. Any pointers? Royden Heays C-GRED ________________________________ Message 3 _____________________________________ Time: 11:58:53 AM PST US From: "Frank Haertlein" Subject: Yak-List: Breaker Points --> Yak-List message posted by: "Frank Haertlein" Yakkers; Looking for points for my two magneto's for a stock Yak-52. Anyone have any leads? Thanks in Advance... Frank WHO MAKES THE BEST PATIENT? Five Surgeons are discussing who makes the best patients to operate on. The first surgeon says, "I like to see accountants on my operating table, because when you open them up, everything inside is numbered." The second responds, "Yeah, but you should try electricians! Everything inside them is color coded." The third surgeon says, "No, I really think librarians are the best; everything inside them is in alphabetical order." The fourth surgeon chimes in: "You know, I like construction workers...those guys always understand when you have a few parts left over. But the fifth surgeon shut them all up when he observed: "You' re all wrong. Politicians are the easiest to operate on. There's no guts, no heart, no brains and no spine, and the head and the ass are interchangeable. ________________________________ Message 4 _____________________________________ Time: 06:41:53 PM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Breaker Points --> Yak-List message posted by: "A. Dennis Savarese" Check with Doug Sapp. The points on the Chinese mag are interchangeable with the M9-F mag. Dennis ----- Original Message ----- Sent: Sunday, July 02, 2006 1:56 PM > --> Yak-List message posted by: "Frank Haertlein" > > > Yakkers; > Looking for points for my two magneto's for a stock Yak-52. Anyone have > any > leads? > Thanks in Advance... > Frank > > WHO MAKES THE BEST PATIENT? > > Five Surgeons are discussing who makes the best patients to operate on. > > The first surgeon says, "I like to see accountants on my operating table, > because when you open them up, everything inside is numbered." > > The second responds, "Yeah, but you should try > electricians! Everything inside them is color coded." > > The third surgeon says, "No, I really think librarians are the best; > everything inside them is in alphabetical order." > > The fourth surgeon chimes in: "You know, I like > construction workers...those guys always understand > when you have a few parts left over. > > But the fifth surgeon shut them all up when he observed: "You' re all > wrong. > Politicians are > the easiest to operate on. There's no guts, no heart, no brains and no > spine, and the head and the > ass are interchangeable. > > > ________________________________ Message 5 _____________________________________ Time: 06:41:53 PM PST US From: "A. Dennis Savarese" Subject: Re: Yak-List: Oil Temperature Guage on Yak 55M --> Yak-List message posted by: "A. Dennis Savarese" It may very well be the oil temperature sending unit. Don't assume it's the instrument without checking out the sending unit. Dennis ----- Original Message ----- Sent: Sunday, July 02, 2006 12:33 PM > --> Yak-List message posted by: "Royden Heays" > > After many hundereds of hours of well behaved indications the oil > temperature guage on my Yak 55M has begun to flicker right up to full > deflection. This occurred for the first time yesterday on start up when > the > oil was known to be cool. The guage is the standard Russian guage that > goes > with the M14P on all the Yaks I have seen. > > Any pointers? > > Royden Heays > C-GRED > > > ________________________________ Message 6 _____________________________________ Time: 10:10:37 PM PST US From: "Walter Lannon" Subject: Re: Yak-List: Oil Temperature Guage on Yak 55M --> Yak-List message posted by: "Walter Lannon" Hi Royden; The oil temp gauge (and carb air temp) are Wheatstone bridge circuit instruments. The snag you describe suggests an intermittent open circuit somewhere in the system. It could be in the instrument, the wiring harness, connectors or internally in the probe. If you select "oil out" does the problem continue? That uses a different probe and harness (but to the same inst. connector). You can swap the probes for trouble shooting, all three are identical, An open circuit will cause a full scale reading. Good luck. Walt ----- Original Message ----- Sent: Sunday, July 02, 2006 10:33 AM > --> Yak-List message posted by: "Royden Heays" > > After many hundereds of hours of well behaved indications the oil > temperature guage on my Yak 55M has begun to flicker right up to full > deflection. This occurred for the first time yesterday on start up when > the > oil was known to be cool. The guage is the standard Russian guage that > goes > with the M14P on all the Yaks I have seen. > > Any pointers? > > Royden Heays > C-GRED > > >