Re: Re: 1950 Cub Farmall with no fire

Posted by George Koehler on November 29, 2001 at 09:47:12 from (12.89.75.132):

In Reply to: Re: 1950 Cub Farmall with no fire posted by Andy Higgins on November 29, 2001 at 04:52:35:

If you get spark off the tractor then the magneto works. Have you checked the impulse coupling. This spring loaded device is supposed to "snap" when it passes a firing point on the engine. Turn the engine slowly with the crank until you hear a "snap" from the magneto housing. It should be firing just a hair past the place where the marker and the notch on the fan pully match. You may have to turn it another half turn to get to the NO. 1 firing position. If no snap you won't get a spark.
Rebuilding a magneto is difficult and for the Cub J magneto I am not even sure parts are still available. But there are magneto rebuilders advertised on some of the Cub web sites.

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