Engine Adjustments - Westerbeke 44A FOUR-35 C THREE Operator's Manual

ENGINE ADJUSTMENTS
ADJUSTING THE IDLE SPEED
1. Loosen the locknut on the idle adjustment bolt on the
fuel injection pump.
2. Adjust the bolt so that the throttle control lever will hold
the engine at a quiet idle. [750 - 1000 RPM]
3. Tighten the locknut.
4. Race the engine several times to ensure the idle speed
remains as set.
NOTE: Should the engine rpm be in question, verify the
tachometer readings as shown at the instrument panel with a
mechanical or strobe-type tachometer at the engine crank-
shaft. See TACHOMETER.
STOP CONTROL CABLE
IDLE ADJUSTMENT BOLT
----
\
ENGINE STOP ADJUSTMENT
POSIT/ON CABLE SO THAT THE
STOP CONTROL WILL SHUT THE
ENGINE DOWN.
FUEL SHUTOFF SOLENOID [OPTIONAL]
The optional fuel shutoff solenoid allows the engine to be
shut down using the instrument panel key switch. The
solenoid has been factory set and does not require
adjustment.
OPTIONAL FUEL
SOLENOID
DRIVE BELT ADJUSTMENT
Proper inspection, service and maintenance of the drive belts
is important for the efficient operation of your engine (see
Drive Belts
under
MAINTENANCE SCHEDULE).
Drive belts must be properly tensioned. Loose drive belts
will not provide proper alternator charging and will eventu-
ally damage the alternator. Drive belts that are too tight will
pull the alternator out of alignment and/or cause the alterna-
tor to wear out prematurely. Excessive drive belt tension can
also cause rapid wear of the belt and reduce the service life
of the coolant pump's bearing. A slack belt or the presence of
oil on the belt can cause belt slipping, resulting in high oper-
ating temperatures and tachometer variations.
The drive belt is properly adjusted if the belt can be deflected
no less than 3/8 inch (IOrnm) and no more than 112 inch
(12rnrn) as the belt is depressed with the thumb at the mid-
point between the two pulleys on the longest span of the belt.
A spare belt or belts should always be carrie<j on board.
A
WARNING:
Never attempt to check or adjust the
drive belt's tension while the engine is in operation.
Adjusting Belt Tension
1. Loosen the alternator adjusting strap bolt and the base
mounting bolt.
2. With the belt lo()se, inspect for wear, cracks and frayed
edges.
3. Pivot the alternator on the base mounting bolt to the left
or right as required, to loosen or tighten.
4. Tighten the base mounting bolt and the adjusting strap
bolt.
5. Run the engine for about 5 minutes, then shut down and
recheck the belt tensions.
RECOMMENDED RPM RANGE
Model Idle RPM Cruise RPM Max. RPM
44AJFOUR
800-1000 2500-3000 3500-3600
44BIFOUR
800-1000 2000-2500
. 2900-3000
35CITHREE 1000-1200 2500-3000
3500-3600
35DITHREE 1000-1200 2000-2500 2900-3000
Engines & Generators
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