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Spark Plugs
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Posted by PA Steve on December 01, 2004 at 12:52:44 from (204.60.75.237):
I've been working on an H for the neighbor. I replaced the plugs with autolites, but then the engine started missing severely. In fact, it was only running on two cylinders and sounded just like a JD B.
Anyway, when I pulled the wire off the plug and held it a half inch away from the plug, it fired fine. When I put the wire the whole way on, it started missing again. Then I replaced the plug with an old champion D18Y and it fired with no problem. All plug gaps are correct and point gap is also correct. What causes this? What is the ideal plug for a light/medium duty H?
Thanks,
Steve
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