Pulled the transmission out and the clutch and flywheel are toast. I'll be purchasing both parts for replacement. The leak does seem to come from the IMS seal. If I remove the IMS bearing cover do I still need to be at TDC? I want to check if I have the original IMS bearing in place. The previous owner said he replaced it with a "ceramic"? type. I could never get paperwork from him supporting that statement. I don't know what the original cover should look like, I'm including photos of mine.
You can't see in the photo but there is a bead of silicon around the flange. This doesn't not look like a factory job, more like it leaked after somebody removed the cover.
Any thoughts would be greatly appreciated.
NOTE: Beater Boxster is: 2002, Base, 5 speed with approximately 85k
Quote:
Originally Posted by Jamesp
Looking at the picture I don't see any drips, but you clearly have leakage. I think you are in for a clutch, likely an IMSB seal and a rear main seal. I will tell you right now the most important thing to do before messing with the IMSB is to lock the engine at zero timing before you start. Read that last sentence again! If the engine is not locked at TDC, the valve springs will try to rotate the cams when the IMSB is loose, at TDC the valve springs cannot rotate the cams. If the cams move with the IMSB loose (you don't remove it to change the IMSB seal, it ends up just being loose) you can lose valve timing and you are in a world of hurt. Skip the drama and set the engine to TDC first thing before disassembly. Installing the seals and clutch parts is simple, just lots of nuts and bolts with plenty of various torque settings and seal installation depths to pay attention to.
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