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Old 02-03-2012, 06:22 AM   #4
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
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Quote:
Originally Posted by rene525d View Post
Well,

i have been seeing some oil drips just beneath the engine area and i was thinking it must be the RMS. Earlier this week i did a clutch replacement, removed the flywheel to get access to the RMS and to my disbelief the area there was clean from oil. It seems that the oil leak culprit is a small bolt located at the middle bottom of the engine just behind the flywheel. -------- THE IMS!! It was not tightened well and i tightened it more and cleaned the area. 2 days later, no more oil leak. Is it supposed to be tightened?
You need to proceed very carefully here. What you are describing is a leaking IMS cover. The rear IMS bearing is a major weak spot in these cars, its failure can lead to a totaled engine, which gets very expensive. Do a search on the subject, and you will see a lot more than you bargained for. Porsche used to reseal pre 2005 IMS bearings that leaked, but even they no longer do this as leakage, particularly from around the center bolt, is not a good sign.

Fortunately, there is an IMS retrofit available (LN Engineering), but it requires removing the flywheel again to do it. We do not tighten or reseal leaking IMS bearings, we retrofit them………..
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