MMorgan
Well-Known Member
My 440 is putting out around 8# of vacume at idle hardly enough to supply my disc/drum set up. Instructions say put vacume intake to check valve on tank then out to the check valve on break booster. Seems strait forward. My issue is the check valve on my tank let’s vacume out but not in. So if I hook inlet line to it, it will not let it in the tank. If I swap it it seems to work better. What Am I missing here? Thanks in advance.