Engine Disassembly, Inspection & Assembly - Westerbeke 8.0KW-60Hz Service Manual

ENGINE-DISASSEMBLY, INSPECTION AND ASSEMBLY
NOTE:
In TlU)st cases the inspection 'and replacement of the timing belt can be
peiformed with the engine/generator in the boat. '
TIMING BELT INSPECTION AftID REPLACEMENT
A
CAUTION: water
or oil on the timing belt severly
reduces the service life
of
the belt. Keep the timing
belt sprocket
ami fensloner free of
011 and greese. '
These paris should never be cleaned. Replace if serio
ousIy contaminated with dirt or oil. If ollis evident on
these
paris,
check the
front
case,
oil pump oil seals,
ami ctankshaft 011 seals for
a
possible leak.
7
SPROCKET BOLT
5
BELT TENSIONER
1 UPPER COVER
--~..\.
8
CAMSHAFT
TIMING BELT ASSEMBLY
9
BELT REAR COVER
2
LOWER
COVER_---l~
CRANKSHAFT
'PULLEY
TIMING BELT
NUMBERS INDICATE THE
ORDER OF DISASSEMBLY
4 TENSIONER
SPRING
TIMING BELT REMOVAL
Using pIiets, grip the tensionet spring projection and remove
it from the oil pump case stopper. Then, remove the tensioner
spring and the timing belt tensionet.
NOTE:
If
the timing belt is to be reused, chalk an arrow on the
belt
to
indicaJe the direction of roll1tWn before reTlU)ving it.
This will
eIISIU'E
the timing belt is fitted correctly when
reused. •
u )
MARKA
DIRECTION
ARROW
SPROCKET BOLT REMOVAL (CAMSHAFT)
Using the special tools shown in the illustration, lock the
camshaft sprocket in position and then loosen the camshaft
sprocket bolt.
CAMSHAFT
SPROCKET
Engines
&
Generators
10