O-ring replacement on the IMS cover..?

[san rensho]

Are you going to pull the outer seal off the IMSB while you are in there?

[Gilles]

Originally Posted by san rensho

Are you going to pull the outer seal off the IMSB while you are in there?

I am not sure, if everything looks fine I may just leave it as is...

.

[pjq]

However, the cover for the IMS is seeping oil and I am trying to figure out how to replace the O-ring on the cover (without removing the bearing since it's an 07)..

Gilles is that a pic of a 2007 Box IMS flange? If so that means you can somewhat inspect the IMSB of a 987 without taking the engine apart to see/remove the IMSB?

[jsceash]

There is a similar cap on the 2007 and it can be pulled off, if you follow the proper procedures for locking the cam and loosening the chain for the 1-2-3 head. The external oiling systems they currently sell are being sold to inject oil directly into the bearing. So the outer seal has to be removed for that installation.

[Gilles]

Originally Posted by pjq

However, the cover for the IMS is seeping oil and I am trying to figure out how to replace the O-ring on the cover (without removing the bearing since it's an 07)..

Gilles is that a pic of a 2007 Box IMS flange? If so that means you can somewhat inspect the IMSB of a 987 without taking the engine apart to see/remove the IMSB?

PJG, the picture of this IMS cover is from an '07 Cayman S (3.4), you can remove the cover to inspect and replace the seals.

However, since the diameter of the bearing is larger than the hole on the case you need to disassemble the entire engine to replace the IMS bearing on all the later engines...

I think this is called German engineering or something like that...

However, it seems that with the larger bearing, the failure rate seems to be smaller on the later engines.