what should lift pump pressure be Thanks
5-7psi. The lift pumps are very prone to failing. I read your other posts, and would like to verify the issue: 1. The machine runs ok when cold. 2. The machine shuts off when hot. 3. The machine is low on power. If the machine shuts down when hot, that means someone mixed up the fuel shut off solenoid wire with the timing advance wire on the injection pump. Low power is likely a bad lift pump.