There is no taper on radiused end. Yes, it’s symmetrical.


I have a hard time believing that is the correct orientation. If they wanted 'flat side out', why wouldn’t they manufacture them in that orientation? Would you flip over any other gasket or o-ring? I don't want to start splitting hairs here, just logically don’t think that's correct.

Charlie - I'm agreeing with you - the radiused edge of the seal is exposed when installed on the shaft, and is the part of the seal that makes contact with the cam housing (I said rocker arm bushing earlier - my goof).

I guess what confused me from the get-go was the picture in Waynes book, where it appears that the seal is installed on the shaft with the flat side exposed...

JB

Doh, crossed wavelenghts. Sorry bout that. http://www.pelicanparts.com/support/smileys/wat2.gif

What the F???? If you can't seal your rocker shafts with this ring on either way you need help. Serious help. The things should seal WITHOUT any extra help, but if they don't with these rings, they are shot, gone, unusable and need reconditioning by a competent Porsche machinist.