Quote:
Originally Posted by gmsii
the check valve is in screwed into the block (so some people might not think there is a check valve in place)....that is the part we tested. we tested it on a bench where we pressurized the outlet side until the valve started to leak, and then measured the amount of leakage which proved to be minimal at all pressure levels from 7psi to 90psi.
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Do you have a picture of that? My understanding has been that it is just a threaded barb fitting and has no check valve in it. A check valve is not required in a PCV system on a non forced induction car.