Single-row IMS/IMS bearing in 2.5L M96?

[986FTW]

Originally Posted by JFP in PA

Depending upon the year of reman, it could carry the oversized non serviceable bearing; the only real way to know for sure is to pull the flywheel and look at it, if it has the large 22MM center bolt nut, it is the oversized bearing.

Thanks, JFP! In this case the existing IMS bearing is serviceable/replaceable with the LN Engineering P/N 106-08.2.2 retrofit kit. Thus the mystery!

I'm trying to determine whether Porsche built this "AT" engine originally with the later (M/Y 2001-2004) style of IMS complex or perhaps the engine has been rebuilt a second time with these parts.

[JFP in PA]

Originally Posted by 986FTW

I'm trying to determine whether Porsche built this "AT" engine originally with the later (M/Y 2001-2004) style of IMS complex or perhaps the engine has been rebuilt a second time with these parts.

The answer lies in decoding the engine numbers as I described above...............if it was remaned a second time, the numbers would still tell you its configuration and age, and if the factory rebuild took place 2005 or later, your assumption about the IMS bearing is incorrect....