Rough Idle, Warm Engine

CauseCorrection
Idle Speed Too LowCheck / adjust low idle screw setting.
OK

Air in Fuel SystemBleed the fuel system and check for suction leaks.
OK

Malfunctioning Fuel Return Overflow ValveCheck / replace fuel return overflow valve.
OK

Fuel Transfer Pump MalfunctioningCheck / replace fuel transfer pump.
OK

Injection Pump Timing IncorrectCheck / correct injection pump timing.
OK

Injector Nozzles Plugged or InoperativeReplace injectors.
OK

Broken Engine MountsReplace engine mounts.
OK

Injection Pump Worn or MalfunctioningRemove injection pump, check calibration.