Mopar 318/ 360 Fuel Pump Problems
Posted: Mon Jul 14, 2014 3:36 pm
This little bug bit me at last. Here's the deal:
"Weird" stalling and misfire under load, usually while on plane or getting there. Gotta be "White Gook" (ethanol formed, unburnable crap) I assumed--all last year. Nope. The fuel pump wasn't putting out enough, and why? The cam that works the arm is screwed up.
The below photo shows what the thing looks like. The keyway shown wears a 'slot' through the key on the cam, and the darn thing rotates on the cam instead of working the fuel pump arm. The solution is a major rip down of the front of the motor, or an electric fuel pump. I've opted for the later and will be installing it next weekend (along with the required safety off oil pressure switch).
Jeff
"Weird" stalling and misfire under load, usually while on plane or getting there. Gotta be "White Gook" (ethanol formed, unburnable crap) I assumed--all last year. Nope. The fuel pump wasn't putting out enough, and why? The cam that works the arm is screwed up.
The below photo shows what the thing looks like. The keyway shown wears a 'slot' through the key on the cam, and the darn thing rotates on the cam instead of working the fuel pump arm. The solution is a major rip down of the front of the motor, or an electric fuel pump. I've opted for the later and will be installing it next weekend (along with the required safety off oil pressure switch).
Jeff