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Old 09-16-2020, 04:07 PM   #6
Jack Shaft
Senior Member
Join Date: Dec 2019
Posts: 913
Default Re: PCV valve good idea?

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your engine does not have a traditional rear main seal.the oil flows through the bearing,into a slinger/trough,then drains back through a tube into the pan..generally,a leaking rear main means the rear main bearing clearance is too large,allowing more oil than the tube can flow back into the pan and it runs out the back.

Crankcase pressure can also force out the rear main bearing causing the condition as the oil fill cap mesh and making sure the cap isn't rammed down on the fill tube blocking the breather is a good check my engine has a second draft tube from the upper rear of the valve cover over the rear bearing feed...does it work? perhaps..
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