Originally Posted by
B16CVH
That is a bitch

, not like they are the easiest things to get to either. Is there a deep wear groove where the seal lies or do you have a lot of piston-blow by pressurising the crankcase??

nope checked the seal carier & it all looked good when i put it in.
running a spec r breather vented from both sides of the block with a proper oil return below the oil level so should be breathing ok. engine has done little mileage. only happens when on track ie sustained high rpm & hot oil