Spill Timing - Westerbeke 7.6 kw EDT Operator's Manual

ENGINE ADJUSTMENTS
NOTE: WESTERBEKE recommends that the following engine adjust-
ments be peiformed by a competent engine mechanic. Theinformation
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 difficult to
start. Have the injection pump delivery rate checked by a
well-established fuel injection shop. Adjust the injection as
follows:
NOTE: The injection pump fuel rack needs to be in the full
fuel delivery position when peiforming this spill timing. To
do this, unscrew the fuel shut off solenoid and remove the
side cover to expose the injection pump fuel rack. Manually
move the fuel rack to the full fuel delivery position (move
fully to the left) secure it in this position then proceed.
L Remove the high pressure fuel line from between the
No. I injector and the No. I fuel delivery valve holder.
2. Remove the No. I 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 conoect to the fuel injector is
pointing away from the engine fuel will flow from this
line duting the timing check.
Rotate the engine's crankshaft in its normal direction of
rotation~to position piston No. I at the beginning ofits
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. I
fuel line, until the instant the fuel completely stops flowing
(no drips). At this instant, the 15° BIDe 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 (15° BIDe) cannot be
attained, adjust the timing by increasing or decreasing the
thickness of shim material under the injection pump's
mounting 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 Generator's Parts List for shim part
numbers.
INJECTION PUMP.
BRACKET
CONTROL RACK
IT MARK
ON PULLEY
/'
DELivER~'IrALVE
HOLDER
PIN
PLUNGER
SPRING
O-RING
DELIVERY
.VALVE
PLUNGER
BARREL
. ROLLER
CRANKSHAFT
PULLEY
TIMING MARKS
TIMING POINTER
-..Y'
WESTERBEKE
Engines
&
Generators
26