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Re: Re: Re: Re: Farmall A timing adjustment
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Posted by John Martin on September 23, 2002 at 17:51:35 from (66.44.13.222):
In Reply to: Re: Re: Re: Farmall A timing adjustment posted by ScottyNY on September 23, 2002 at 17:05:15:
When it was running well, it had the distributor that is currently on the tractor. I call it a distributor, but it was once a magneto, and the impulse coupling has not been altered as far as I know. This gets a little complicated...so thanks for bearing with me while I try to explain. When we first dragged the tractor out of the woods, and got it started, it had a different distributor on it. My father in law said that he always had problems with it, worked on it, messed something up, and then couldn't get it to retard far enough (rotated toward the engine and needed to go farther...according to him). He had a spare he got at an auction, and suggested we put it on in place of the existing one. I took the wound coil and condenser out of the spare, and took the condensers out of the existing one and placed them in the spare. There were actually two condensers installed...one with a threaded post, and one with a insulated wire lead with a spade connector on it. The spade connector was conncected under the threaded post, so the condensers were connected in parallel. To summarize, the one on the tractor now, that was running well, was a spare originally, and has the condensers from the original. One possible significant clue, although I'm not sure of the significance, is the spare (now on the tractor...and ran well for a time)has the impulse coupling intact as far as I can tell. The one on the tractor when we took it out of the woods, has altered impulse coupling. By altered, I mean it spins freely by hand when turning in the direction of normal rotation. The spare that is now on the tractor has strong spring resistance, and snaps through the firing positions. Does any of that make sense? It's difficult to piece together in my memory, much less try to explain it in writing. I've asked this question before, and received conflicting answers. When the magneto is no longer a magneto, but a distributor instead, do you still need the impulse coupling? Sorry for being so long-winded, but trying to explain it takes a bunch of words. Thanks again for your interest and help.
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