Engine Maintenance
111
9. Check position of the timing marks. The
injection timing mark on the flywheel should
be aligned with the timing mark on the starter
mounting plate. Repeat steps 6 through 9 to
recheck the timing.
10. If the timing is off by more than 1 degree (0.1
in. [2.5 mm]), loosen the mounting nuts on the
studs that fasten the injection pump to the
engine and rotate the injection pump to change
the timing.
a. Pull the top of the injection pump away
from the engine to advance the timing.
b. Push the top of the injection pump toward
the engine to retard the timing.
11. Tighten the injection pump mounting nuts and
recheck the timing. Repeat steps 6 through 11
until the timing is correct.
12. Install the injection line for the number one
cylinder, the cylinder head cover, tighten the
other injection lines, and reconnect the 8S
wire to the starter solenoid when finished with
the procedure.
Injection Pump Removal and
Installation TK376 Engine
Injection Pump Removal
1. Note the alignment of the index marks on the
injection pump and the gear case. If they are
not marked, mark them so the injection pump
can be returned to the same position when it is
reinstalled.
2. Remove the throttle linkage, fuel lines, wire
harness, and mounting hardware from the
injection pump.
3. Remove the injection pump timing cover from
the gear case.
4. Loosen the injection pump gear mounting nut,
but do not remove it yet.
1. Injection Timing Mark
2. Timing Mark on Starter Mounting Plate
Figure 137: Correct Injection Timing Mark
Alignment
1
2
1. Index Marks
Figure 138: Index Mark Location
1. Index Mark on Injection Pump
2. Index Mark on Gear Case
Figure 139: Index Mark Alignment
1
1 2
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