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Re: OT - Fairbanks Morse FM Magneto timing
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Posted by Jason Z in MO on November 07, 2005 at 11:24:56 from (68.92.80.146):
In Reply to: Re: OT - Fairbanks Morse FM Magneto timing posted by Glen in TX on November 07, 2005 at 10:13:04:
Glen, The timing mark I am looking at is a very distinct bar | on both gears. I played with moving one tooth each way but the "lag" as Bob explained is always about 30 degrees. Of course when I move the timing marks the impulse doesn"t trip at TDC which I think it should be. I haven"t had the engine open so I don"t know if the cam timing is correct. I will pull the valve cover and verify. I have a Wisconsin manual that covers a few of the early engines. That"s why I thought it should be running at 17 degrees advanced. It doesn"t talk about specific serial numbers, just that model in general. What determines the correct angle? Why would the same engine used different settings; 17, 25 and 30? How does that affect power? Thank you all for taking the time to help me with my little problem. By the way this engine is used in a homemade log splitter my father-in-law gave me.
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