Schnorr Washers - Which way to they go?
 

These are the serrated edge, conical shaped special lock washers used with various cap bolts for CV joint bolts, upper strut, etc. Which way do they go, concave facing bolt head or other way around??

I upgraded the bolts and washers on my drive shaft a short while back. Could not locate any information regarding the installation of Schnoors therefore, I assumed it didn't matter which direction they were installed.

Anyone know for sure?

Concave side faces away from bolt or screw head.

Good question.
Schnorr Safety washers “S”
I understand it is with the convex toward the bolt head and
concave toward the CV “moon” plate. This is how Porsche
originally installed them (when the bean counters allowed
the engineers to prevail).

http://forums.pelicanparts.com/uploa...1124753064.jpg

Adolph Schnorr GmbH & Co. KG
Stuttgarter Strabe 37
D-71069 Sindelfingen (Maichingen)
Germany

Schnorr Corporation
4355 varsity Drive
Suite A
Ann Arbor, MI, USA 48108
Phone 734-677-2683
Fax 734-975-0408

Here is their contact:
sales@schnorr.com

Per Wayne’s 101 Projects for Your Porsche 911 page 116,
torque the CV bolts to 61 ft-lbs for M10 bolts or 34 ft-lbs for M8
bolts.

Always use new Schnorr washers and 12.9 bolts. Re-torque
again after some driving.

Best,
Grady