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PCA Spotlight: Intermediate shaft and IMS bearing explained

Tuesday, November 21, 2017

One of the most contentious subjects in the Porsche world is the intermediate shaft (IMS) bearing used in water-cooled 911s and Boxsters and Caymans from model years 1997 to 2008. So when our test drive and inspection videos of a 986 Boxster and 996 Carrera collectively achieved nearly 50,000 views, we decided to follow up with an in-depth series to dispel myths surrounding the problematic IMS bearing these Porsches were equipped with from the factory.

The 26-minute video above is the first and explains what an IMS assembly is, where it resides in the engine, and how it changed through the years. Enjoy!

Special thanks to Jake Raby, founder of Flat 6 Innovations and inventor of the IMS Solution, and Charles Navarro, founder of LN Engineering.

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