I'm getting ready to put my order in fro all my stuff for my engine re-assembly, but I'm having difficulty locating a part number in PET. Below is a picture of my 91 head. I believe there are 2 on the driver side and 3 on the passenger side. Don't know if I need to replace them or not, but figured now's the time.

Thanks.

 

PET has them as 'Covers':

 

No... that's a different part. These things have a pin that go into the oil passege. I believe they started in 90/91. That cover goes on the outside of the head. These "plugs" are internal, just inside of those covers.

 

so the cams run inside them?

 

Here's another pic. You can see the recess where Part #11 sits. Just need to find out what that rubber plug is...

 

Thanks Sterling... so re-use is okay?

 

Andrew's cams don't extend all the way to the end of the head. That's why the piece he's inquiring about is actually a plug instead of a cap.

 

Engineered to save money............how unlike them but makes perfect sense.

#38 is the pin possibly 36 or 37?

 

Reuse is not ok. They need to be changed into late style full metal pins. Rubber portion on that old style part degrades and can cause oil pressure drop if metal pin gets up from hole it is blocking. These are one of those absolute must changes to S4/GT engine which still have original parts.

 

Correct part number is 928 105 262 00.

 

Thanks Erkka. It's now on my list.

 

Couple of Q's..

If I'm taking the valve covers off to replace plug seals, o-rings and gaskets, presumably I should think about replacing these pins too? (I have a minor oil leak into the spark plug holes on 3 and 7, so figured I'd do this whilst doing my intake)

The Porsche parts catalogue says there are 5 of these? Is this a misprint, or does one set of cams require 2?

 

The (U.S.) driver side requires 2, while the (U.S.) passenger side requires 3.

 

I would also replace #41 spring and #43 o-ring in Malcolm's (the flyin' scotsman) PET picture.

 

What are those parts? Looks like it's only on the passenger head. Below is the driver side head... I don't see where they would go here. Sorry I don't have a picture of the passenger head.