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Old 11-19-2011, 02:14 PM
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rohmell rohmell is offline
Motorized Bicycle Elite Member
Join Date: Jun 2010
Location: New York
Posts: 1,533
Default Re: Acorn nut stuck on stud

I have found that these engines don't have the stud holes in the engine case halves threaded completely to the bottom of the hole. By running a bottoming tap into these holes and finishing the job that the Chinese started, the studs will go into the halves a little bit more, and the problem of the stud hitting the domed roof of the acorn nut before being fully tightened down will be eliminated.
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