Quote:
Originally Posted by Jake Raby
This is the most common issue with the M96.21, M96.22 and M96.24 engines. These are all Boxster power plants. I see 15-20 per year.
Typically the bank 1 intake cam and lifters fail, 65% of the time its the #1 cylinder, outboard intake valve that fails first.
Approach repair with care. Collateral damage from this failure can bite you later, especially considering he debris levels in the oil, and the chances for a bent valve/ broken valve spring on the effected position.
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Does the M96.20 also suffer these problems?