Subieguy Posted June 14, 2007 Share Posted June 14, 2007 What tap size do I need for a EA 82 spark plug hole. I pulled the drivers side head off and the hole is quite cross threaded. I never noticed this because I never pulled the plugs on my 85 before. Help! Link to comment Share on other sites More sharing options...
silverhelme Posted June 14, 2007 Share Posted June 14, 2007 If it was cross threaded you will probably need to put a thread insert in it. I get mine from NAPA they have one that works well and they will know which one you need. They offer 3 different lengths and I have found that the 3/4 length works best. When you retap for the insert and you are doing it on the engine put grease on the tap. Back it out clean off the chips and grease every couple of threads and it will keep chips from getting into the cylinder. Link to comment Share on other sites More sharing options...
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