I found the source of my clicking noise today.  Problem same as previous two
times.  Top bolt on exhaust pipe leading to left rear cylinder again had
fallen out.  Supposedly, my mechanic had checked this last Wednesday when he
did oil change and right rear axle transplant.  However, this is Macon, GA,
and such things happen.

Last spring, I had new exhaust system put on.  In July, the top stud on same
pipe fell out.  My mechanic put helicoils and new bolts in both holes.
Obviously something is going wrong as the top bolt is not holding.  Looks
like it will be easy fix to put a bolt back in, but how to keep problem from
happening again.  Bolt had a lock washer, but apparently this was not
enough.  Sounds like I good case for Loctite, but will it take the high
temps.

Any ideas?

John Lauterbach
Macon, GA
1984 DL