Gary in WTN
Member
I went to start my 1971 4020 diesel PS this afternoon. It hadn't been started in 2 to 3 months. I turned the key, the engine cranked over fine but never fired up. Not even a hint of smoke from the exhaust. I suspected that no fuel was getting to the cylinders so I cracked a line at one of the injectors and cranked the engine over and got no fuel at all. I took the timing cover off the side of the pump, fuel was clean and the pump turned when the engine was cranked over. When the key is turned to the on position an extremely faint click can be heard at the injection pump if I'm standing right beside the pump. Normally the click from the pump can be easily heard when sitting in the seat. Is it possible that the shut off valve in the pump can stick closed even though the solenoid is energized and prevent the delivery of fuel to the injectors? If so can it be unstuck without pulling the pump? Are there other things that I need to check? And yes, fuel is available to the injection pump. Thanks for any input.