Installation manual

ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE recommends that the following
engine adjustments
be
peifonned
by a competent engine
mechanic.
The
information below is
provided
to assist the
mechanic.
ENGINE
SPEED
(HERTZ)
ADJUSTMENT
Governor
The
belt-driven,
mechanically
operated
governor
maintains
the
engine's
rpm
under
various
load
conditions.
Engine
speed
determines
the
hertz
and
voltage
output
of
the
generator.
Governor
Adjusbnents
Operate
the
generator
to
bring
the
unit
up
to
operating
tem-
perature
before
adjusting
the
governor.
NOTE:
lfthe
governor is severely out
of
adjustment, manually
adjust the linkage at no-load to obtain a safe output voltage
before proceeding with the adjustment.
There
are
three
adjusting
points
on
the
governor
(see
illustra-
tion).
1.
IncreaselDecrease Speed Adjustment. This adjusting bolt
sets the no-load speed
of
the engine. (The linkage arm
between the governor arm and throttle lever should be
adjusted to hold the throttle full open when the engine is
not
running.)
Make
sure
this
linkage moves
freely
and
that the ball joint connectors are properly lubricated. Use
graphite lube for this purpose. Disconnect the ball joint
and apply graphite lube to the inside
of
the joint.
2.
Hunting/Regulation Adjustment.
If
the variation in
engine speed between no-load and full-load
is
too great,
adjust this eye bolt to draw the spring closer
to
the lever
hub. The increase/decrease speed bolt may need
to
be
adjusted as well.
If
the
governor
surges
under
load,
adjust
this
eye
bolt
to
move the spring away from the lever hub (check speed
adjustment).
3. Bumper Screw Adjustment.
This
screw
is
used
to
remove
a no-load surge ONLY.
NEVER
turn the bumper screw
into
the
governor
so
far
that
it
increases
the
no-load
speed.
LINKAGE
GOVERNOR
FILL
Governor
Maintenance
1.
Periodically
lubricate
the
linkage
arm
attaching
points
at
the
governor
arm
and
throttle
lever.
Use a
graphite
lubricant
or
equivalent.
NOTE:
Free movement
of
this linkage arm is imponantfor
proper governor/throttle operation.
2. Governor oil capacity - 3 ounces 10/30 engine
oiL
NOTE:
Do not overfill the governor.
3, Change the governor oil every 250 hours
of
operation.
To
change
the
oil, remove
the
governor
from
the
engine,
remove the oil fill and the fill level plug, and drain all the
oil. Reinstall on the engine and fill with 3 ounces
of
10/30
engine oil. Replace the plugs.
4, Periodically adjust the governor belt tension (see
DRIVE
BELTS ADJUSTMENT). Since belts stretch slightly, this
stretching
will,
to
some degree, affect
the
gavenor's
action.
TORQUING
THE
CYLINDER
HEAD
BOLTS
After the initial break-in period (approximately 50 hours). the
cylinder head bolts should be re-torqued.
Tighten
the
cylinde:r
head
bolts
according
to
the
sequence
shown.
Make
sure
the
engine
is
cold
when
this
is
done,
and
loosen one head bolt one-half turn and then tighten it
between 43 -
51
lb-ft (60 - 70 Nm). Then proceed to the next
head bolt
in
the sequence. Tighten the RS (rocker cover stud)
securely.
FRONT
OF...-..-.,
ENGINE
~
6
4
2
INTAKE
SIDE
BUMPER
SCREW
LEVER
HUNTING
ADJUSTMENT
SPEED
ADJUSTMENT
(UNDER)
8
1
Engines & Generators
26
7
5