BobRip
Elite Member
Hi Jack, I took the pump off today. The diaghrams looked OK. I cleaned the check valves. Then I found some oil between the diaphram and the engine vacuum port. I cleaned this out and then reassembled the whole thing. I ran it around the property and it ran fine. It seemed to run better when cold than it had before. I suspect the oil in the pump was reducing the pumping action. Can you confirm this? I did not do a flow or pressure test, only a driving test. Oh, I did put a vacuum pump on the inlet and it held a vacuum and then put a little pressure on the outlet and it held the pressure.
Thanks for everyone's help.
Bob Rip
Thanks for everyone's help.
Bob Rip