View Single Post
kenikh kenikh is online now
3 restos WIP = psycho
kenikh's Avatar
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,729
Originally Posted by JFairman View Post
The nuts holding the case halves together look like regular 8x1.25mm nuts. The original case half nuts are the self locking all steel ones where the rounded off top edge is squished together a little to make friction on the threads once the nut is threaded all the way on the stud. I've heard them called "prevailing torque" lock nuts.

I've seen nylocks used there too.
Hopefully the ones you have on there will not eventually vibrate loose. Maybe they were installed with loctite so that should work too.
Otherwise you could remove one nut at a time and replace it with a prevailing torque or nylock nut for peace of mind and for it to look correct.

Good luck with it!
The builder of my motor knows what he's doing, so he has my full trust. Considering he's been maintaining two 935s and a 962 (on top of many 930s) - none of the have shaken apart on the vintage race circuit or road.

- 1965 911
- 1969 911S
- 1980 911SC Targa
- 1979 930
Old 12-18-2015, 10:40 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #282 (permalink)