Quote:
Originally Posted by scrambledeggs728
Then I am right to think that getting a 2005-8 base (or a 2005-6 S) "solves" the "did you replace your IMS" questioning I have to do to each 986 that is advertised? My local technician said you don't want to be the first guy to find out when these III bearings fail.
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Not exactly...
Porsche implemented the GIII IMS
during the 2005 MY. So a 2005 could have a GII or GIII IMS. Supposedly the changeover occurred in mid-Mar 2005 but no way to know for sure, esp if the build date is close to Mar. Porsche did not keep track of which type of engine went into which cars. Porsche had a batch of engines in a warehouse and grabbed an engine as needed. Supposedly they'd grab a GII out of inventory before going to a GIII, but no guarantees they took them in order. Only way to be certain is if you have an early or late build date but best bet is to remove the trans and look. GIII is larger. Or you buy a 2006-2008 for a GIII or a 2001-2004 for the GII (2000 MY was a transition from the GI IMS to GII). An early 2005 with the GII IMS will be serviceable w/o splitting the engine and will have the design that's prone to failure 10% of the time.