Quote:
Originally Posted by Rob175
I wonder what percentage of Boxsters NEVER experience an IMS failure? Even if hundreds have experienced failure that might only be a very small percentage......just curious.
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I attended a half day program on this subject by a very experienced Porsche aftermarket mechanic in CT last year.
Double row bearings some engines (see class action suit to determine which you are) will likely give you a minute or so notice as the first half of the bearing falls apart and makes a racket with the second half keeping the alignment of the shaft in tact.
Single row bearings will fail almost instantly, so when you hear it, it could already be too late to save it.
All of these sealed bearings will fail eventually!!! It's a matter of when. And the "when" is a mystery, but over 50,000+ miles makes it more likely. He also said that this is the
only application of a sealed bearing
inside an engine that he has EVER encountered on any engine anywhere. Thanks, Porsche engineers!!!