After reading up on the subject, I found out that the timing cam gears was worn, and needed replacement. The gears was worn through the outer hard coating, and into the aluminium. Since I wanted to make the timing belt system right, i decided to replace them. So while waiting for parts, I'm currently working on the low side of the engine, replacing the motor mounts and oil pan gasket. I had the cork gasket lying in my stock, but during the work i decided to go for a silicone gasket. So had to order that as well. Replacing all the oil pan screws with stud and lock nuts from 928Motorsports.
Also doing a lot of cleaning, blasting parts like brackets and bolts and sending to re-plating. It is annoying that when you order new bolts etc from Porsche, they are blue/blank plated instead of the yellow chromate that has been banned in EU. (i think Porsche used Cadmium plating, and that is banned, but zink and yellow chromate is still available from plating shops)
Parts arrive on monday.
btw. porsche has a new part number for the cam timing gear with improved coating.
Worn timing gear:
new timing gears:
Lifting jig:
Large oilpan:
Large bottom end. Funny how you can see all the way up into the underside of the pistons. Not in this pic....
