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JFP in PA · 06-27-2011, 06:42 PM

The 05 model year was the transition to the larger diameter "final solution" IMS bearing which cannot fit through the opening in the rear of the assembled cases. Problem is that there is not clear or definative "cut off" date, or list of serial numbers, for when this happened during 2005. All 2006's (or engines replaced during 2006 or later) have the larger bearing, some early 05's have the older style that can be replaced, later 05's have the "non serviceable" unit. If we get an 05 in the shop, the only way to know for sure is to pull it apart and look at the IMS bearing center nut, if it is 22MM, it is the larger bearing and cannot be changed.

And, yes, the larger “non serviceable” IMS bearing does fail.

06-27-2011, 06:42 PM	#3
JFP in PA Registered User Join Date: Feb 2005 Location: It's a kind of magic..... Posts: 6,584	The 05 model year was the transition to the larger diameter "final solution" IMS bearing which cannot fit through the opening in the rear of the assembled cases. Problem is that there is not clear or definative "cut off" date, or list of serial numbers, for when this happened during 2005. All 2006's (or engines replaced during 2006 or later) have the larger bearing, some early 05's have the older style that can be replaced, later 05's have the "non serviceable" unit. If we get an 05 in the shop, the only way to know for sure is to pull it apart and look at the IMS bearing center nut, if it is 22MM, it is the larger bearing and cannot be changed. And, yes, the larger “non serviceable” IMS bearing does fail. __________________ “Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein Last edited by JFP in PA; 06-27-2011 at 06:45 PM.