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Spark plugs are hitting the pistons. Help! Spark plugs are hitting the pistons. Help!
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Old 09-14-2018, 08:51 AM
Karl Bebout's Avatar
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Bill, had you been using the 3924 or its equivalent?

If so, hope the shorter plug does the trick.

Mighty strange, if the proper parts have been used.
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Old 09-14-2018, 10:32 AM
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I think my problem stems from using a domed piston with zero deck height, allowing the dome to move further up into the combustion chamber. The shorter plug should be the fix. I sure hope so
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