5-5. FUEL PUMP MAINTENANCE INSTRUCTIONS
This task includes:
Lockwasher, M6 (1)
Tool Kit, General Mechanic's
Lockwasher, M8 (2)
Grinder, Hand Held; item 14, Appx F
Plier, Snap Ring; item 20, Appx F
Compactor set on level ground in protected area.
Rule, Flexible; item 39, Appx F
Stamp, Numerals (Die Set); item 43, Appx F
General Safety lnstructions
Wrench, Torque; item 50, Appx F
Observe all WARNINGS and CAUTIONS
Solvent, Dry Cleaning; item 9, Appx E
Slowly crank the engine in rotation direction and
observe the drip tube. First the fuel flows free,
then drips, stops and starts to drip again. The fuel
delivery cut-off point is reached when approxi-
Adjustment of the fuel pump is required
mately 1 drop per second flows out of the drip
when a new gear housing is installed, or
tube. Stop cranking the engine at this point.
the camshaft/camshaft gear has been re-
Using a flexible rule, measure the distance be-
tween the TDC marks on the flywheel and the en-
gine housing. The fuel pump is correctly timed
when the distance measured is 0.827 ± 0.079 in.
Slowly crank the engine in rotation direction until
(21 ±2 mm).
the top dead center (TDC) mark on the flywheel
is approximately at the 5 o'clock position.
Provide a wash pan for fuel spilled from the fuel
pump and clamp fuel line.
Remove the allen head screw (1) and gasket (2)
from face of fuel pump (3) and install a drip tube.
Fuel will flow from the fuel pump (3) as the
screw (1) is loosened.
Set the throttle control lever to full load and en-
sure that the primer is not set.