Engine Adjustments - Westerbeke 5.0KW BCG-60Hz Operator's Manual

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