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1934 · 01-30-2019, 08:51 AM

('37 FH motor)
When I short out the plugs with the motor idling there are 4 cylinders that seem to be doing all the work and 4 that seem to be doing nothing, I.E. when I short out one of the 4 good ones the motor bogs down considerably and when I short one of the other 4 there is no difference in the idle. I thought it might be the plugs so I switched them up and no difference- always the same 4 cylinders not firing properly.
Does this sound like a timing issue or.... Any ideas appreciated.
Doug.

01-30-2019, 08:51 AM	#1
1934 Senior Member Join Date: Jul 2010 Location: Quebec, Canada Posts: 415	spark at the plugs ('37 FH motor) When I short out the plugs with the motor idling there are 4 cylinders that seem to be doing all the work and 4 that seem to be doing nothing, I.E. when I short out one of the 4 good ones the motor bogs down considerably and when I short one of the other 4 there is no difference in the idle. I thought it might be the plugs so I switched them up and no difference- always the same 4 cylinders not firing properly. Does this sound like a timing issue or.... Any ideas appreciated. Doug.