Loosen the screw (6) on the engine timing tool. Set the
engine timing tool to the correct angle. Refer to the
Specifications, "Fuel Injection Pump" for the pump mark
angle. Tighten the screw (6).
Loosen the screw (4). Slide the pointer (5) forward until
the pointer is over the center of the pump flange. Check
that the mark on the flange is in the center of the slot in
If the mark on the flange is not correct, remove the
engine timing tool. Remove the mark on the flange.
Install the engine timing tool. Ensure that the fuel pump
is at the start of fuel injection for number 1 cylinder.
Loosen the screw (4). Slide the pointer forward to the
complete width of the flange. Tighten the screw (4).
Use the slot that is in the pointer in order to make a new
mark on the flange of the pump.
Remove the engine timing tool, the sleeve, and the
Disconnect the 5P-4150 Nozzle Test Group from the
number 1 outlet (2).
Install the fuel injection pump. Eliminate the air from the
Timing Of The Fuel Injection Pump On
Type 2 Engines and 7BJ Engines
For a complete description of Type 1 and Type 2
engines, refer to the Systems Operation, Testing
and Adjusting Module, "Engine Design" for more
(Lucas and Stanadyne)
Timing gear and hub o the fuel injection pump (Lucas and
(1) Timing pin
(4) Hole in pump body
(2) Torx screws
(5) Slot for timing gear
(3) Hub nut
(6) Slot for hub
This procedure can only be used when the engine is set to the
top center position on number one cylinder on the compression
stroke. Refer to the "Setting The Top Center Position By The
Alternate Method" in the Systems Operation, Testing and
Adjusting manual for more information.
Do not remove the hub nut (3) from the shaft of
the fuel injection pump. The hub of the fuel
injection pump is installed on the shaft in the
factory in order to ensure that the fuel injection
pump is in the correct position for timing. If the
hub is removed, the hub must be accurately
installed to the pump shaft by the use of special
equipment at a Caterpillar Dealer.
Do not release the torx screws (2). If the torx
screws are released and the timing plate is
moved, the timing position that is set at the
factory will be lost. If the timing position is lost,
the engine must be set to the top center position
on the number 1 cylinder on the compression
stroke before the torx screws are tightened.
Set the piston of number one cylinder on the
Remove the coolant pump.