Quote:
Originally Posted by mikefocke
Isn't the AOS also there to release crankcase pressure by allowing the venting of mist and separating out its components? Without the AOS to allow the venting, where else would the pressure go?
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Probably through the crankshaft oil seals (whistling sound) or up past the piston rings.
Remember the M96 engines have a relatively light piston ring pressure compared to older engines - it wouldn't take much positive crankcase pressure to force them back with not very nice consequences.....