Westerbeke 8.0KW-60HZ Operator's Manual page 31

ENGINE ADJUSTMENTS
NOTE:
WESTERBEKE recommends that the following engine
adjustments be peiformed by a competent engine mechanic.
The information below is provided to assist the mechanic.
Timing Belt Inspection
Replace the belt if any of the following conditions exist:
1. Hardening of back rubber-back side is glossy, without
resilience, and leaves no indent when pressed with
fingernail.
2. Cracks on rubber back.
3. Cracks or peeling of canvas.
4. Cracks on tooth bottom.
5.
Cracks on belt.
6. Abnornlal wear of belt sides. The sides are normal if
they are sharp as if cut by a knife.
7. Abnormal wear on teeth.
8. Tooth missing and canvas fiber exposed.
RUBBER
EXPOSED
5.
7.
6.
8.
ABNORMAL WEAR
(FLUFFY STRAND)
TOOTH MISSING
ANO CANVAS
EXPOSED
Sprocket Bolt Installation (Camshaft)
Using the special tools shown in the illustration, lock the
camshaft sprocket in position and tighten the camshaft
. sprocket bolt to the specified torque.
LOCKING THE CAMSHAFT SPROCKET
Belt Tensioner Inspection
Replace the belt tensioner if it binds, rattles, or is noisy when
turned.
Tensioner Spring Installation
1. Lock the timing belt tensioner in the illustrated position.
TIMING BELT
TENSIONER
2. Fit one of the tensioner spring projections over the hooked
portion of the belt tensioner and fit the tensioner onto the
oil pump case.
YENSIONER
V
SPRING
3. Grip the other tensioner spring projection and fit it onto
the oil pump case lug as shown in the illustration. Move
the timing belt tensioner in the direction shown and
temporarily tighten the bolt.
OIL PUMP CASE I
TIMING BELT
TENSIONER
TENSIONER
SPRING
Engines
&
Generators
25