Westerbeke 20.0KW sbeg Operator's Manual page 33

TIMING BELT
INSTAllATION
1. Align the timing mark on the timing belt pulley and
camshaft pulley with the marks.
2. Remove all the spark plugs. This is to prevent
compression when rotating the timing belt.
MATING MARK
3. Install the timing belt tensioner and spring.
MARK
4. Position the timing belt tensioner all the way to the
intake side. and temporarily secure it by tightening the
lock bolt.
TIMING BELT
TENSIONER AND SPRING
DIRECTION
ARROW
IF RE-USING THE TIMING
BELT, INSTALL IT IN THE
DIRECTION OF THE APPLIED
ARROW - FORWARD ROTATION.
5. Install the timing belt on the crankshaft pulley and the
carnshaltpulley from the tension side (the right side as
viewed from the front of the engine) so that tension is
retained.
6. Loosen the tensioner lock bolt so that the tensioner spring
applies tension.
7. Thm the crankshaft twice in the direction of rotation. This
will apply equal tension to each side of the timing belt.
LOCK BOLT
A
CAUTION:
Water
or
oil on the timing belt
ssrerely reduces the service life of the belt. keep the
timing belt sproket and tensloner free of oil and grease.
Thess parts should nerer be cleaned. Replace If
ssrlously contaminated with dirt
or
oil.
If 01/
Is erident
on these parts, check the front case, oil pump seals,
and camshaft oil ssals for a possible leak.
,.y:
WESTERBEKE
Engines & Generators
21