
Engine Maintenance
111
Injection Pump Removal
The injection pump drive gear will not fit through
the gear housing when removing the pump, the
gear must be separated from the pump. Using tool
P/N 204-1011, it will not be necessary to remove
the belts, crankshaft pulley, crankshaft seal or
front plate. See Figure 185 “Injection Pump Gear
Tool” on page 112.
1. Note the alignment of the index marks on the
injection pump and the gear case. The index
mark on the injection pump is usually aligned
with the single index mark on the gear case. If
not, mark it so the injection pump can be
returned to the same position when it is
reinstalled.
2. Remove the starter for clearance, remove
throttle linkage, fuel lines, harness and
mounting hardware from injection pump.
3. Remove the cover plate from the gear case.
Remove the nut and lock washer which secure
the gear to the injection pump shaft. Use a
shop rag to prevent the lock washer or nut
from falling into the gear case.
NOTE: The injection pump gear assembly is
made of three pieces; the flange, the gear,
and the transfer pump cam. Do not loosen or
remove the four bolts that fasten the gear to
the flange because that changes the timing.
4. Use the hardware from the cover plate to
attach the tool plate (with the marked side
pointing up and out) to the gear case.
5. Align the threaded holes in the injection pump
gear with the two holes in the tool plate by
rotating the engine crankshaft. Attach the gear
to the tool plate with the screws provided with
the tool plate.
6. Thread the long screw supplied with the tool
plate into the small end of the adapter, also
supplied with the tool plate. Insert the adapter
into the tool plate and rotate to provide a solid
position to force the injection pump shaft from
the gear. Caution should be made to align the
screw over the center of the injection pump
shaft.
7. Remove the screw and adapter leaving the tool
plate in place. This holds the gear in proper
tooth alignment until the injection pump is
re-installed.
1.
Index Marks
Figure 183: Index Mark Location
1.
Index Mark on Injection Pump
2.
Index Mark on Gear Case
Figure 184: Index Mark Alignment
1
1
2