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Old 05-30-2015, 06:58 PM   #11
Ross F-1
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Join Date: Nov 2010
Location: NM
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Default Re: Stripped flywheel bolt

Quote:
Originally Posted by Bob C View Post
The thin plate is called a flywheel dowel retainer, keeps the dowels
from working there way out.

Bob
Well, that makes sense!

The thing with the Helicoil solution is that there is precious little metal between the OD of the crank flange and the OD of the stock bolt hole. Helicoil OD would be real close to the edge.

Out hunting for parts, believe it or not my local True Value has both 12mm x 1.5 (standard fine) and 12mm x 1.25 (extra fine) taps. But so far I haven't located 12mm x 1.5 or x 1.25 grade 10.9 bolts. I have a helicoil kit in hand. I'll see what I can dig up tomorrow.

I did try a bolt about 1/4" longer, which barely clears the back of the block. Got it to 45 ft-lbs before it felt squeamish. The threads are just shot.

Mart, none of the bolts I have are drilled for safety wire (all from 8BA's)
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Last edited by Ross F-1; 05-30-2015 at 07:09 PM.
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