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Timing cover thread's stripped
https://www.ausmini.com/forums/viewtopic.php?f=2&t=80668		 Page 1 of 1
Author:  spfh84 [ Mon Mar 11, 2013 2:24 pm ]
Post subject:  Timing cover thread's stripped
Hi again!!

Thought I would do the quick job of putting the timing cover on today and, as is always the case a small job turned big!! Went to put the small 1/4" bolts on and 4 out of 6 of them stripped the thread in the backplate. Thought I could maybe get away with a nut on the back but the one at the very top and 2 on the bottom are really fiddly and tight...is drilling them out and tapping them to the next size an option??
Author:  MINImal effort [ Mon Mar 11, 2013 2:42 pm ]
Post subject: 
I'd think the clearance in the "lip" of the timing cover would make it awkward with a larger head.

I'd go with helicoil (or similar) to repair to original size.

Check your bolts before using - if stripped 4 of 6 - sounds like someone may have been hamfisted in the past. Better to replace than try and using dodgy ones.
Author:  drmini in aust [ Mon Mar 11, 2013 2:49 pm ]
Post subject: 
Not thick enough for a reliable helicoil.
I tap them to 5/16 UNF and shorten some screws to suit. Do it in situ, then drill the cover holes to 8.5mm.
I had to do one last week. :wink:

[edit] There is clearance in there for 5/16 bolts, some are that size already.
Author:  spfh84 [ Mon Mar 11, 2013 8:33 pm ]
Post subject: 
Ok great..thanks for the replies!
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