Reply To: Fuel Pump Conversion Issue

[drifter]

Well, I took everything apart and meticulously checked everything I knew to check. The drain hole is clear (I used carb cleaner and compressed air). I removed the leaf valve and cleaned it along with the seats. Blocked the right hole (looking from the front). Reassembled everything and ran the motor. No change. The pulse line quickly shows fuel mix. After a few minutes of idling, the fuel starts to ooze out of the pump.
The pump works fine and draws the fuel well. The motor runs well, starts easily and idles great.
Guess I will return the motor back to the pressure system as I simply do not know what more I can do other than blocking the left hole or maybe going to a pump that does not have a bleed hole on the pressure side of the diaphragm (if such a pump exists). I can’t see the pump itself being at fault since the pulse line does fill with fuel.
I do appreciate all of the help and I did learn a good bit.
Thanks,
Drifter