What’s this?

[mhurwitz]

I’m replacing the flywheel seal and rear pulley seal on my 71 911 2.2. I came across this below the rear pulley (circled in yellow). Is it common to replace the gasket at this time?

[Discseven]

Intermediate shaft cover. If it's not leaking, my choice would be to leave it alone.

[mhurwitz]

Originally Posted by Discseven

Intermediate shaft cover. If it's not leaking, my choice would be to leave it alone.

I think it may be leaking. It it a simple job to change the gasket?

[gled49]

No better time than now.

[Discseven]

Originally Posted by mhurwitz

I think it may be leaking. It it a simple job to change the gasket?

Remove those 3 nuts. Gasket is a couple of dollars. Clean the mating surface area of the case and cover plate well---without gouging or scratching those surfaces. The plate's mating surface can be put on a glass window to ensure it's nicely flat. Good idea to get 3 new nylock nuts. Not sure if the washers there are bowed. If they are, I'd do new on those---cup of bow faces towards the case. Check both sides of the gasket before installing. Shouldn't be any deformities on either side and should be clean---no hairs, etc. Torque those nuts to spec working around each nut a little at a time---to compress the gasket progressively. Is a subtle step but as I see it, is worth treating gaskets with some finesse. With parts in hand, is maybe half hour project.

.

[mhurwitz]

Originally Posted by Discseven

Remove those 3 nuts. Gasket is a couple of dollars. Clean the mating surface area of the case and cover plate well---without gouging or scratching those surfaces. The plate's mating surface can be put on a glass window to ensure it's nicely flat. Good idea to get 3 new nylock nuts. Not sure if the washers there are bowed. If they are, I'd do new on those---cup of bow faces towards the case. Check both sides of the gasket before installing. Shouldn't be any deformities on either side and should be clean---no hairs, etc. Torque those nuts to spec working around each nut a little at a time---to compress the gasket progressively. Is a subtle step but as I see it, is worth treating gaskets with some finesse. With parts in hand, is maybe half hour project.

.

Karl, Thank you so much for taking the time to explain that