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      02-01-2017, 03:27 PM   #15
fred340
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Drives: E90 M3&328
Join Date: Mar 2013
Location: montreal, qc

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The n65 engine does not have a typical pcv valve: the sytem uses two oil seperators where the valve covers and intake meet. Oil accumulated after this process in the intake goes through the front bottom of the intake and then through the tube discuss before on this topic. After there is a oil drain back valve that brings back the oil in the crankcase.
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