PORSCHE 986/7BOXTER 996/7CARRERA owners, at Auto Engineering, we are currently performing LN Engineering’s IMS retrofit to resolve IMS Bearing failure issues.

There are not many warning signs of an impending IMS failure short of a “death rattle” that occurs as the bearing fails and comes apart. If caught early enough, a leak at the IMS hub flange may be signs of a failing bearing, but can be improperly identified as an RMS leak at times. If doing a rear main seal (RMS), it’s recommended to do an IMS retrofit at the same time, as the majority of the labor is identical to that of performing the RMS service.

Photo From LNEngineering.com: The aftermath of a single row IMS bearing failure on a MY04 - complete disassembly and a rebuild is your only recourse at this point. Also, when damage is this extensive, the shaft is not rebuildable - a core must be sourced