Installation manual
ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE
recommends
that
the
following engine
adjustments
be
peiformed
by
a competent
engine
mechanic.
The
information below
is
provided
to
assist
the
mechanic.
VALVE
CLEARANCE
AND
ADJUSTMENT
1.
Start the engine and allow it to warm up until the engine
coolant reaches operating temperature.
2. Remove all the spark plugs to allow ease in rotating the
engine crankshaft and to allow viewing
of
the piston
movement.
3. Rotate the engine crankshaft to position No.I piston at
TDC
of
its compression stroke. Observe intake and
exhaust valve movement to indicate compression stroke.
Align the timing mark on the crankshaft pulley with the T
mark on the gear case timing indicator. This places. No.1
piston at TDC
of
its compression stroke. Observe the
piston through the spark plug opening.
3. Start the engine and allow it to warm up until the engine
coolant reaches operating temperature.
4. Note: When measuring the valve clearance,
if
the valve
clearance is not as specified, looen the rocker arm lock nut
and adjust the clearance using a feeler gauge by turning
the adjusting screw. Whilte holding the adjusting screw
with a screwdriver to prevent it from turning, tighten the
lock nut to the specified tirque
of
15
Nm.
5. Adjust the intake and exhaust valves for Cylinder No.
1.
6. Rotate the crankshaft 90 degrees and adjust the valves for
Cylinder No.3. Rotate the crankshaft another
90 degrees
and adjust the valves for Cylinder No.4. Rotate the
crankshaft another
90 degrees and adjust the valves for
Cylinder No.2.
7. Install the rocker cover.
8. Install the spark plugs, placing a small amount
of
Anti-Seize on the thread
of
the plug. Tighten to 25 Nm.
CRANKSHAFT
PULLEY
VALVE
CLEARANCE
(ENGINE
HOn
INTAKE
0.20
MM
(0.0079
IN)
EXHAUST
0.25
MM
(0.0098
IN)
FIRING
ORDER
1-3-4-2
TESTING
THE
IGNITER
Reference the illustration below. Using AWG#l6 wire, connect the igniter through a 12
VDC
battery as shown. Momentarily
place the tip
of
a metal screw driver near the middle
of
the pick-up
of
the igniter. Each time this is done, a spark should jump
the gap. This will indicate a serviceable igniter.
Ground the metal
back
side
of
the igniter.
23
IGNITER
Do
not
mix
up
the
wire
connections
to
terminals
B
and
C
as
that
would
damage
the
igniter.
If
the
distributor
is
operated
with
t11e
external
resister
left
shorted,
the
igniter
and
col/will
overheat.