Injection Timing - Westerbeke 5.0Kw BCDR Operator's 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 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 PTm1P fuel rack needs to be in the full
fuel delivery position when performing 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 thefullfuel delivery position (move
fully to the
left)
secure it in this position then proceed.
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 levet 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 11
0
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 (11
0
BIDC) 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.
STOP
W I H t - -.....
BRACKET
CONTROL
RACK
Engines & Generators
25
TIMING MARKS
TIMING POINTER