Fuel Pump

[23 Reo 234]

When I install an electric fuel pump on my C165 can I simply run power to the coil and ground the pump to the frame?

[ebinmaine 77,082]

If the coil is energized during the start and run positions of the ignition switch that I don't see why this won't work.

 

 

The only caution I would add here, ground importance can't be overstated.

 

Original Wheel Horse grounds were adequate at best. Just a few years of corrosion... no more ground.

 

 

That's why I like to run separate grounds to every major component.

[ri702bill 11,145]

2 hours ago, 23 Reo said:

When I install an electric fuel pump on my C165 can I simply run power to the coil and ground the pump to the frame?

Most likely. If you are using the stock coil with the built-in resistor, fine. If you are using a replacement with a separate external resistor, power it from the key "Run" side at a full 12 volts. And - add an inline fuse..... 

[Bill D 2,587]

Always run power to the fuel pump from the positive terminal on the coil.  This way the pump will shut off if a safety switch is activated that shuts down the engine, for example getting thrown off the tractor.  If there is a ballast resistor before the coil, use the line side terminal (the wire coming from the key switch) to ensure full voltage to the pump.