Primary drain plug
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Novice
Joined: Jan 2011
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Primary drain plug
Hello-I have a 72 iron head sportster and the drain plug for the primary is stripped(case threads). Does anyone have suggestions on the best fix(oversize plug, heli-coil, and etc.) THank you for any help!
Grant
Grant
Cruiser
Joined: Dec 2010
Posts: 246
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From: Southeast MI
It depends on what level of skill you have, or how much you want to spend. Retap, or drill and tap is best. The cheapest fix is a rubber plug that expands when you turn it from an auto parts store. Personally, I would avoid helicoil. I used that solution in the past and it didn't work well.
Road Master
Joined: Nov 2006
Posts: 1,227
Likes: 3
From: Central Illinois
It depends on what level of skill you have, or how much you want to spend. Retap, or drill and tap is best. The cheapest fix is a rubber plug that expands when you turn it from an auto parts store. Personally, I would avoid helicoil. I used that solution in the past and it didn't work well.
That is ridiculous! A helic-coil will leak between the threads. Look for a shop that can install a Thread-sert and use a newer style plug. Remember, when the plug fails, it is in the line of tread patch.
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