Where is the IMS flange located on a Porsche?
The ims flange is accessible with the transmission removed. With the crankshaft at TDC and cams locked, it is possible to remove the flange and gain access to the bearing, at which time the grease seal can be removed. This exposes the bearing to the engine oil located in the sump and provides improved lubrication and cooling for the bearing
Are there any 911s with IMS bearing failure?
All water cooled 911’s Boxster’s and Caymans from 1997 through to 2008 are at risk of suffering an IMS bearing failure, with the exception of the Turbo, GT2 and GT3 models which maintained use of the air-cooled style shaft.
When did Porsche stop using the IMS bearing?
The IMS bearing for these engines went through multiple design revisions from 1999 – ’06, including both single- and dual-row bearing designs, without ever adequately resolving the issue.
Are there any IMS failures in Porsche Cayman?
The incidence of IMS failures in 2006-2008 Porsche Boxster, Cayman, and 911 models with the M96 or M97 engine is very low. We would estimate about a 1% failure rate, but as these engines with the non-serviceable MY06-08 IMS bearing age, failure rates will increase and should be upgraded whenever the engine is going to be rebuilt.
The ims flange is accessible with the transmission removed. With the crankshaft at TDC and cams locked, it is possible to remove the flange and gain access to the bearing, at which time the grease seal can be removed. This exposes the bearing to the engine oil located in the sump and provides improved lubrication and cooling for the bearing
When did the IMS bearings come out on the 997?
Figure 1. Inner workings of a 997 engine and IMS bearings. According to research and multiple surveys, the results of which were published on Rennlist.com, the IMS bearing issue could be narrowed down to 997 models that were produced in late 2005 and early 2006.
Do you have to replace the IMS seal?
The unfortunate thing about having to replace these seals, is the labour involved. The transmission housing needs to be removed to determine which seal is leaking (and also to replace it). The IMS seal takes slightly longer as the timing needs to be locked too. Here is a video showing ‘someone’ replacing the Rear Main Seal using the correct tool.
How do I know if my Porsche needs an IMS bearing replacement?
The question that almost everyone with a Porsche will ask.. How do I know if my Porsche needs an IMS bearing replacement?