Northern Lights LUGGER L6108, Operator'S Manual

Page: 20 / 43

O6108 08/01
Figure 12 Injection Pump Servicing Points
1. Lube line
2. Fuel injection line 3. Injection line clamp
4. No. 1 delivery line
5. Fuel return line
6. Hand priming pump
7. Fuel feed lines
8. Pump mounting nut
9. Throttle
10. Pump fl ange mounting nuts (also
two on back of pump)
18
Servicing
TIMING INJECTION PUMP
1. The Match Mark Alignment Method:
Note: This is used when the injection pump is being
reinstalled on the original engine and the pump has
NOT been repaired.
a. When the stamped line on the injection pump is
aligned with the stamped line on the drive case,
the pump is correctly timed (see Fig. 14).
2. Delivery Valve Method:
Use delivery valve method when a repaired or
replaced injection pump is being installed.
a. Disconnect fuel injection line from the No. 1 cyl-
inder delivery valve on the injection pump (12,4).
b. Remove delivery valve holder. Remove spring and
delivery valve and put valve holder back in injec-
tion pump.
c. Place the throttle (12,9) in the full fuel (forward)
position.
d. Use a breaker bar with the appropriate socket
to rotate the crankshaft in a clockwise direc-
tion while operating the priming pump (12,6).
This is best done by two people.
e. Stop rotating and pumping when fuel stops
fl owing out of the delivery valve holder
(12,4).
f. The pointer (Fig. 13) should align with the
timing specifi cation found in the Technical
manual or on the data plate on the engine.
1) If the injection timing line has passed the
pointer, the timing is retarded.
2) If the injection timing line has not
reached the pointer, the timing is
advanced.
g. To adjust timing, rotate the crankshaft 30
°
-
40
°
(1/8 turn) in counterclockwise direction
from "1.6 TOP" mark to remove gear lash.