Re: Farmall A idle miss

Posted by Janicholson on July 07, 2012 at 13:40:14 from (96.24.99.126):

In Reply to: Farmall A idle miss posted by kopeck on July 07, 2012 at 12:48:09:

first since it is consistant, Use a spark plug from the good running engine. put it onto #1 plug wire and lay it on the block. if two cylinders now misfire, go to the next plug toward the rear. WHen it only misses on one cylinder, you have found the one causing the grief. Replace that plug with the one you know is OK. If this makes the mis go away, the plug was bad. If it still misses, I would next adjust the valves correctly and see if that is the answer. Pay attention to the adjustment on the cylinder that misses. The only last item I can think of without being there is to see if the intake manifold is cracked internally allowing exhaust to get into the intake, leaning it down at high vacuum. Jim

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