Delphi Fuel Injection Pump 9320A192G
Skidsteer sitting for 4 years. Now no fuel to injectors (observed with lines disconnected at injectors) when starting. Replaced fuel filters. Bled air from system. Replaced shutdown solenoid with no improvement. Can hear solenoid energize when connector removed and installed. Observe very, very small fuel flow from injection pump return port with hose disconnected and fuel transfer pump running.
1. What can be preventing fuel flow to injectors?
2. How can pump rotation be verified without major disassembly?
3. Should more fuel be expected from injection pump return port?
Any diagnostic ideas would be appreciated.
Skidsteer sitting for 4 years. Now no fuel to injectors (observed with lines disconnected at injectors) when starting. Replaced fuel filters. Bled air from system. Replaced shutdown solenoid with no improvement. Can hear solenoid energize when connector removed and installed. Observe very, very small fuel flow from injection pump return port with hose disconnected and fuel transfer pump running.
1. What can be preventing fuel flow to injectors?
2. How can pump rotation be verified without major disassembly?
3. Should more fuel be expected from injection pump return port?
Any diagnostic ideas would be appreciated.