hiperfauto
The Librarian
- Joined
- Nov 18, 2011
- Location
- So Cal
The rear cam seal is pretty straightforward, just keep it flush with the back of the head and the #4 cam cap as you snug the bolts on the cam cap.
B21/B23 don't use a rear cam seal. The valve cover is flat in the back and they use a half moon shaped plug.
I just did the cam seals on my brothers 244 this last weekend because the front cam seal was leaking. It turns out the front cam seal on his car wore a groove in the cam, so when I replaced it with a new one it still leaked because at the seal point the cam OD wasn't to spec with the ring seal ID. Fortunately, someone mentioned to me you don't have to seat the front cam seal all the way, and you can translate it a mm or 2 forward so it isn't riding in the groove, but honestly I'd just get a new cam at that point.
Just my $0.02
Why change the cam when you can get a repair sleeve for under $20.
https://www.summitracing.com/parts/tmk-kwk99139