Re: 50 Clipper Project - Fuel pump issue help needed

Posted by Owen_Dyneto On 2019/5/29 10:08:49

One very easy test is to check the fuel pump to see if it is capable of drawing fuel, this is the very first thing I'd check. Just disconnect the line from the tank and hold your finger over the fitting on the pump as someone cranks the engine over. If you don't feel a vacuum against your finger from the pump, it's not functioning. If so, likely causes include stuck or non-functioning one-way valves or a ruptured diaphragm.

PS- remotely possible that the pump was assembled incorrectly and the positions of the inlet and outlet have been reversed. Just check which port provides suction.