Installation manual
ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE
recommends
that
the
following engine adjust-
ments
be
performed
by
a competent
engine
mechanic.
The
information
below
is
provided
to
assist
the
mechanic.
Injection
Pump
Timing
Adjustment
(Spill
Timing)
If
your engine's fuel injection timing is not properly adjusted,
the engine will not operate properly, and may be
difficlllt to
start. Have the injection pump delivery rate checked by a
well-established fuel injection shop. Adjust the injection
as
follows:
NOTE:
The
fuel shut-off lever must
be
in
the
RUN position
while making
the
adjustment or
no
fuel will
flow
from
the
fuel
injection
pump.
1. Remove the high pressure fuel line from between the
No. 1 injector and the No. 1 fuel delivery valve holder.
2. Remove the No. 1 fuel delivery valve holder over
"0"
ring and remove the delivery valve spring beneath the
holder.
3. Reinstall only the
delivery valve holder and reattach the
high pressure fuel line to the delivery holder. Attach it so
that the end that would connect to the fuel injector is
pointing away from the engine fuel will flow from this
line during the timing check.
Rotate the engine's crankshaft in its normal direction
of
rotation to position piston the No. 1 at the beginning
of
its
compression stroke.
Move the throttle lever to its
full open position and operate
the electric
lift
pump. Slowly rotate the crankshaft clockwise
(as viewed from the front), catching the fuel from the
No.1
fuel line, until the instant the fuel completely stops flowing
(no drips).
At
this instant, the 19
0
BIDC
timing mark on the
crankshaft pulley should be directly aligned with the timing
indicator
on
the front
of
the gear case ±
.5
degrees.
If
the specified injection timing (19
0
BIDC)
cannot be
attained, adjust the timing
by
increasing or decreasing the
thickness
of
shim material under the injection pump's mount-
ing flange to change the injection timing point. Changing the
shim thickness
by
0.004 inch (O.Olmm) changes the injection
timing
by
approximately one degree. To advance the timing,
decrease the shim thickness, as required. To retard the timing,
increase the shim thickness, as required. Refer to your gener-
ator's
Parts List for shim part numbers.
! !
MARK
ON
CRANKSHAtT
pULIEY.
HIGH
PRESSURE
FUEL
LINE
Engines & Generator!!.
..
33
L
'TIMING
IPOINTER
TIMING
MARKS.