Fuel System (Rev 1/97)
96
especially if the injection pump has been repaired or
replaced recently.
Timing Injection Pump To Engine
NOTE: The cylinders on these engines are numbered
from the flywheel end to the water pump end. The number
1 cylinder is next to the flywheel. On the two cylinder
engines the number 2 cylinder is next to the water pump.
On the three cylinder engines the number 2 cylinder is in
the middle and the number 3 cylinder is next to the water
pump. The timing marks on the flywheel are also num-
bered this way.
The timing marks on the flywheel of the two cylinder
engines are stamped 180 degrees apart. The timing marks
on the flywheel of the three cylinder engines are stamped
120 degrees apart. The top dead center marks have the cyl-
inder number stamped next to them. The injection timing
marks have no identification marks.
The index timing mark is stamped on the side of the starter
mounting plate that faces the flywheel. This timing mark
is on the intake side of the engine.
Timing Marks
aea356
CAUTION: Before turning the engine by hand, loosen all
the injection lines at the injection nozzles to prevent the
any possibility that the engine might fire.
1. Rotate the engine in the normal direction of rotation
(counterclockwise from the flywheel end) until the
number 1 cylinder is at top dead center of the compres-
sion stroke.
a.
Remove the valve cover and check the rocker arms
and push rods on the number 1 cylinder.
b. If the rocker arms and push rods are loose, the
number 1 cylinder is at top dead center of the com-
pression stroke.
c.
If the rocker arms and push rods are tight, the num-
ber 1 cylinder is at top dead center of the exhaust
stroke. Rotate the engine 360 degrees to place the
number 1 cylinder at top dead center of the com-
pression stroke.
2. Remove the injection line for cylinder number 1 from
the delivery valve spring holder.
3. Remove the delivery valve spring holder, the delivery
valve spring, and the delivery valve for the number one
cylinder.
4. Replace the delivery valve spring holder and connect it
to a drip tube.
5. Turn on the electric fuel pump. If the engine is near top
dead center on the number one cylinder no fuel should
be flowing from the drip tube.
6. Rotate the engine backwards past the injection timing
mark for the number 1 cylinder until fuel flows from
the drip tube.
7. Slowly rotate the engine in the correct direction of rota-
tion while watching the drip tube. When the fuel flow
has slowed to one drip in every 10 to 15 seconds, check
the timing marks. The injection timing mark for the