Fuel Pump Problem

[In the Shed]

Folks

Been chasing an oil leak on the Ute (grey motor) and thought the seal below the diaphragm in fuel pump was buggered allowing oil to leak from air vent hole in pump body. Ordered a replacement fuel pump kit.

Pulled pump and dismantled only to discover seal looks ok. Might as well rebuild it whilst I’m here, however the replacement diaphragm is wrong, see pic.


So put the pump back together with original bits and fitted it up. Now the darn thing wont pump fuel? The bowl is empty and no sign of fuel after four good cranks of engine.

Have not touched anything else on the car. Believe I have the one way valves in the right way (with gasket underneath).

IMG_4664.jpeg (2.28 MiB) Viewed 101 times

IMG_4664.jpeg (2.28 MiB) Viewed 101 times

Have fuel at the filter. Fitted an another pump off an old motor that seemed to work when arm was operated? but no luck there either.

I suppose next step is to disconnect inlet pipe and see if it sucks when cranking? Any other suggestions?

Stephen

IMG_4660.jpeg (1.59 MiB) Viewed 98 times

[In the Shed]

Valves

[Dr Terry]

The valves appear to be the wrong way around. Try & blow thru the inlet, its valve should open, but won't if it's the wrong way around.

Dr Terry

[Errol62]

They are hard to put back together so that the connecting rod seal seats over the raised cylinder, with the spring correctly seated, from memory. I believe this is correct fitment, which looks the same as yours.

Make sure the pump arm is actually riding on the cam and not loose under it when bolted up.


FB ute fixer upper, EK van on rotisserie