Operation and maintenance manual

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NOTE: A diesel engine cannot tolerate dirt or water
in the fuel system. A tiny piece of dirt or a few drops
of water in the injection system may stop your unit.
Clean all external surfaces of the injection pump,
including all line connections and fittings that are to
be disconnected. Clean the area around the
injection pump gear cover to prevent dirt from
entering the crankcase.
Removing the Fuel Pump
Locate TDC for cylinder number 1. Push the
TDCpin into the hole in the camshaft gear while
slowly barring the engine.
To prevent damage to the timing pin, be sure to
disengage the pin after locating TDC.
14 mm
Loosen the CAV injection pump lockscrew and
position the special washer, then tighten the
lockscrew against the pump drive shaft.
Torque Value: 7 N • m [5 ft-lb]
3/8 Inch
Loosen the Stanadyne DB4 fuel injection pump lock
screw and position the special washer. Tighten the lock
screw until contact is made with the fuel injection pump
drive shaft.
Torque Value: 12 N • m [9 ft-lb]