IMS Bearing Failure 101 — LN Engineering / PAGE 5
Is it original? · Has the engine been replaced? Check the engine #
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Is it original?
Has the engine been replaced? Check the engine #
If the engine is not original to the car, it will have whatever bearing was in use when
the engine was produced.
Example 1: 1999 Boxster had a replacement engine installed that was built in 2004.
It will use the Single Row bearing.
Example 2: 2004 911 had a replacement engine installed that was built in 2007. It
will use the non-serviceable bearing.
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