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Old 04-23-2013, 11:55 AM   #7
southernstar
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Join Date: Apr 2012
Location: Ontario, Canada
Posts: 598
hamburglar, you can't say you will never have issues with the IMS bearing and RMS. Some of the early 2.5 Boxsters (97, 98) had problems with block porosity that typically showed up quite early on, if at all. That car will have a double-row IMS bearing (but check the engine serial numbers, because if the engine has been replaced it may be a later engine with single-row bearing), which substantially reduces the risk of IMS bearing failure ( well less than 1% versus 8-10%). However, there is no set mileage at which it can occur. I have a dual row with only 57,000 miles, but still plan on replacing the bearing when I end up having to do the clutch.
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