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I am looking at a 02 s with a reman engine 2 years ago. He says it has the updated IMS. Does this mean I won't have to worry about it going bad, or is there still an issue with Porsche's IMS from 2 years ago?
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All Reman engines from 2006+ have the later 997 style IMS bearing. This bearing is not removable as it is larger than the access port in the crankcase. When this bearing begins to fail, the engine is issued a Death Certificate because it cannot be replaced without complete engine disassembly.
The 997 series bearings are beginning to fail more frequently and we are beginning to see them now that those cars and engines are coming out of warranty and the issues are becoming more apparent, just like the older engines did.
I have some pics of failed 997 series bearings I'll be posting on my site soon. Only time will tell how serious the issues will be with the later bearings.
Until an engine is fully updated it will have inherent issues that may or may not ever kill it.. A fully updated engine can't be sourced from Porsche.