Operating instructions
ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE
recommends
that
the
following
engine
adjustments
be
performed
by
a competent
engine
mechanic.
The
information below
is
provided
to
assist
the
mechanic.
TIMING
BELT
INSPECTION
AND
REPLACEMENT
Timing
Belt
Removal
A
CAUTION:
Water
or
oil
on
the
timing
belt
severely
reduces
the
service
lite
of
the
belt.
Keep
the
timing
belt
sprocket
and
tensioner
free
of
oil
and
grease.
These
pans
should
never
be
cleaned.
Replace
if
seri-
ously
contaminated
with
dirt
or
oil.
If
oil
is
evident
on
these
pans,
check
the
front
case~
oil
pump
oil
seals,
and
camshaft
oil
seals
for
a
possible
oi/leak.
1.
Turn the crankshaft clockwise
to
align·the timing mark on
the camshaft sprocket and timing belt rear cover.
NOTE:
always
turn
the
crankshaft
clockwise.
TIMING
MARK
2. Remove the plug on the left surface
of
the cylinder block
and insert a rod with a diameter
of
8mm (O.3fin.) to lock
the counterbalance shaft.
NOTE:
Be
sure
to
use
an
inserting
rod
with a diameter
of
8m111
(0.31
in.).
2.6
IN
(65MM)
----1'......--~1O-i
ROD
3. Loosen the timing belt tensioner nut.
CYLINDER
BLOCK
4. Move the timing belt tensioner toward the water pump,
and temporarily tighten the nut to hold the tensioner in
that position.
TIMING
BElT
TENSIONER
5. Remove the timing bell.
NOTE:
lfthe
timing
belt
is
to
be
reused,
draw
an
arrow
on
the
belt back
to
indicate
the
direction
of
rotation
(clock·
wise).
Camshaft
Sprocket
Removal
1. Remove the bolt without tuming the camshaft.
Oil
Pump
Sprocket
Flange
Nut
Removal.
1.
Remove the plug from the left side of the cylinder block.
2. Insert an 8
mm
(0.31
in.) diameter round bar to lock the
counterbalance shaft.
3. Remove the nut.
Engines
& Generators
22