Installation manual
ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE recommends that the following engine adjust-
ments be
peiformed
by a competent engine mechanic. The information
below is provided to assist the mechanic.
Check the crankshaft position for the start
of
fuel injection. 5. Notice which injection timing mark
is
aligned with the
1.
Turn
the crankshaft pulley counterclockwise viewed from pulley mark. The timing mark
in
alignment with the
the
engine front about 30°. pulley mark indicates the degrees before
(IDC),
the start
2.
Remove No. I high pressure injection line.
1'1
~DELIVERY
VALVE
e
HOLDER
::-~~~~*-----
DELIVERY
VALVE
3. Remove the injection pump No. I delivery valve holder,
delivery valve and spring and reinstall the delivery valve
holder back into the pump.
DELIVERY
VALVE
HOLDER
TIGHTENING
TORQUE:
39
-
44
Nm
(4
-
4.5
Kg-m!28.9
-
32.5
ft-Ib)
4. Slowly turn the crankshaft pulley clockwise and at the
same time, feed fuel to the injuection pump by slowly
pumping the feed pump. When the fuel stops to
flow
out
from
No. I delivery valve holder, stop tut;ning the crank-
shaft pulley and pumping. This is
th~
beginning
of
fuel
injection. .
"
PULLEY
MARK
of
fuel
injection
The degrees before TDC differs depending on the engine
model. Refer to the specifications
on
the injection timing
for
the respective model engine.
If
the timing
is
incorrect,
do the following adjustment.
ADJUSTMENT
PROCEDURES
1.
Align the pulley mark and the specified timing mark.
(Refer
to
the injection timing specifications.)
2.
Loosen the four injection pump attachment nuts.
3.
To advance
the
timing, pivot the injection pump
at
the
pump drive shaft away from the engine.
To
retard
the
timing, pivot the injection pump at the
pump drive shaft toward the engine.
NOTE:
The 1
mm
misalignment between the timing marks
on
the crankshaft pulley correspond
to
about r
in
crank
angle.
4.
Recheck the timing, following procedures I through
5.
5. Tighten the four injection pump attachment nuts.
6.
Again remove No. I delivery valve holder, and reinstall
the delivery valve, spring and the valve holder.
DELIVERY
VALVE
HOLDER
TIGHTENING
TORQUE:
39
-
44
Nm
(4
-
4.5
Kg-m!28.9
-
32.5
ft-Ib)
7.
Reinstall the No. I high pressure injection line.
LOOSEN
FOUR
NUTS
(80TH
SIDES)
TIMING
GEAR
CASE
Engines & Generators
35