A fellow asked me to help him with this IH "A" that hasn't run for a couple of years since he restored it, and fired it up ONCE, letting it run a few minutes. He shut it down, and it would never start again. He has monkeyed with it for over 2 years, even pulling the front bolster and timing cover off to check the timing!
The problem was, he had put quite a bit of anti-sieze on the spark plugs, then run it just long enough for the excess to drip down into the cylinders and get splattered all over the porcelain insulators on the spark plugs, shorting them out. They were COATED with the silvery-graphitey mess! I blasted them, cleaned them THOROUGHLY of any remaining media, and it STILL wouldn't FIRE, NOT EVEN ONCE! I removed the plugs, bleasted and cleaned tehm again, then heated the tips with a tirch, to burn them clean. It fired right of. The guy couldn't believe how quickly, after all the stuff he tryed over a couple of years. I told him to put it completely together, then start an and run it 'til it warms up, and HOPEFULLY burns any of the remaining anti-seize out of the cylinders.
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