Re: Early 50s Farmall runs on one of four
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Posted by Eddie Petty on August 18, 1998 at 16:06:59:
In Reply to: Early 50s Farmall runs on one of four posted by Dave Rausch on August 18, 1998 at 14:10:46:
: Neighbor has a 4 banger that seems to only run on one cylinder part of the time. It has new plugs,wires & dist. The front (#1) plug looks good but the remaining three are wet. Not much power. : Odd thing is that if you disconnect #2, #3 or #4 plug wires there is no change but when you reconnect it and have the wire just starting on the plug the RPMs increase noticably. With all three of the wires just haning on the power is improved. : This is no way to run a tractor. Any Suggestions I can pass to my neighbor. Dave, This sounds like the classic case of either a coil that is about to fail or a condenser that has headed south. The simple explaination of why the engine speed increases as you're about to reconnect the plug wire is that the induction resistance within the coil and the dwell angle of that induction have been greatly increased by the 'plug gap' between the reconnecting wire and plug thus allowing the plug to fire with the increased secondary voltage. The plugs are wet due to the unburned fuel mixture within the combustion chamber. Scratch through your spare parts bin and temporarly connect any condenser and coil to prove my theory before you make an expenditure. Good luck, Eddie Petty.
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