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Old 09-30-2011, 02:29 PM   #16
Aron in Toronto
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Join Date: Jun 2005
Location: Toronto
Posts: 157
Quote:
Originally Posted by Ghostrider 310 View Post
Thanks Aron, for the link I'll scope it carefully. The 2.5 is a double row IMS and in the original Excellence article it states the 2.5 must have the case opened for replacement, in fact it's one of the reasons Porsche changed to a single row. I am hoping between the time the article was authored and now that other techniques have been pioneered. Edit* link states both dual and single row units can be replaced without dis assembly. Since I'm not sure what failed in my car it may need to come apart anyhow. When I restarted it it was running smooth just with a chain like rattle so I shut it down immediately, not sure what's wrong with it.
Ghostrider,

You are correct that the 2.5s have a double row bearing, however this is a "serviceable" bearing in that it can be removed w/o splitting the case. Porsche returned to a double row bearing in 2006, but this later style cannot be replaced w/o opening the case so yours should replaceable assuming this is related to the noises you heard.
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