986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Who HASN'T done the IMS Retrofit (and why not)?

pothole · 03-23-2012, 01:49 PM

I absolutely do not doubt that the IMS bearing is weak point of these engines.

But equally, it's far from clear how frequently they fail. Nor is it clear ow reliable the replacement bearings are. Compared to the original bearings, the installed base on "upgraded" bearings is very young and very tiny.

Moreover, I get the impression that the original bearings tend to go at relatively low miles. With my car now on 100,000 miles, I'm going to assume I've got one of the good bearings. It clearly isn't one of the really bad ones.

2.5s are now so cheap in the UK, it almost makes more sense to just drive it till it breaks, sell it as a rolling chassis and buy another.

03-23-2012, 01:49 PM	#27
pothole Registered User Join Date: May 2010 Location: UK Posts: 874	I absolutely do not doubt that the IMS bearing is weak point of these engines. But equally, it's far from clear how frequently they fail. Nor is it clear ow reliable the replacement bearings are. Compared to the original bearings, the installed base on "upgraded" bearings is very young and very tiny. Moreover, I get the impression that the original bearings tend to go at relatively low miles. With my car now on 100,000 miles, I'm going to assume I've got one of the good bearings. It clearly isn't one of the really bad ones. 2.5s are now so cheap in the UK, it almost makes more sense to just drive it till it breaks, sell it as a rolling chassis and buy another. __________________ Manual '00 3.2 S Arctic Silver Last edited by pothole; 03-23-2012 at 01:52 PM.