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Old 04-29-2016, 08:55 AM   #4
Jake Raby
Engine Surgeon
 
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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