oil pressure relief valve question

i removed mine to put in a temp switch. is it just a spring that comes out first with a large ball bearing on top of it. or did i miss something.
anyone have a schematic of it. thanx.

Typically there is a piston not a ball bearing but here's something that will help.

You can enlarge it once the page is on your screen

http://books.google.com/books?id=bdG4s_di9bAC&pg=PA119&lpg=PA119&dq=vw+pressure+relief+valve&source=web&ots=vm65pZpVwY&sig=1TJ-sSb_vC0yVRVB-IEbb6nBdrE&hl=en#PPA119,M1

The ball conversion is usually done by Adrian at Headflow Masters or Bernie Bergmann.

brandon, you are correct. it is a bergmann motor and he said it is correct.