do like el toro said and run a compression test. run a dry one then wet. first pull the spark plugs and examine them closely, keep track of the cylinder they came out of . look for oil fouling, or wet plugs ect. next with the plugs out and throttle wide open, do compression test on each cylinder, and write the numbers down. they should be within 10% of each other, somewhere between 80-125 psi. then squirt 2-3 pumps of oil with an oilcan in each cyliner, turn motor over a couple times to spread oil around, then re-run compression test. if you get a big jump in compression, most likely rings are worn. if the compression doesnt jump or very little, look toward valves, guides and or seals.
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Today's Featured Article - The Fordson F Ignition System - by Anthony West. A fellow restorer contacted me earlier this year asking for some help and advice on a model F that he was restoring. He had over a period of months spent a fair amount of his hard earned cash on replacement parts for the old "trembler" ignition. Sadly though all his efforts seemed to be a waste of time and money as he still couldn''t get the temperamental old thing to run correctly!! If i said that this was a little frustrating for him that would be "conservative" in fact the problem had reduce
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