electric fuel pump

[waterdog85170]

ok, here we go...88 four winns with omc cobra. friend bought it used, has a 350 vortec block without fuel pump provisions. previous owner installed automotive elec pump with no oil pressure cutoff. trying to keep my buddy alive, i need to fix this. so i need part # for a fuel pressure switch and a diagram to wire it correctly. by the way, we are ordering a holley MARINE pump for it too. thanks.

 

[Buttanic]

Re: electric fuel pump

ok, here we go...88 four winns with omc cobra. friend bought it used, has a 350 vortec block without fuel pump provisions. previous owner installed automotive elec pump with no oil pressure cutoff. trying to keep my buddy alive, i need to fix this. so i need part # for a fuel pressure switch and a diagram to wire it correctly. by the way, we are ordering a holley MARINE pump for it too. thanks.

Look in the Holley catalog, they also have the switch and wiring diagram.

 

[Don S]

Re: electric fuel pump

Here is a diagram from Mercruiser using an oil pressure switcht to put power to the fuel pump when there is oil pressure. Note, there is power to the pump when the starter is engaged. This is necessary if the engine doesn't start the first time or the fuel has leaked or evaporated out of the carb.