Westerbeke BCGB - Engine Adjustments; Governor Adjustments and Maintenance

COOLANT CIRCULATING PUMp·
REMOVING THE COOLANT PUMP
1. Loosen the belt guards thumbscrews and remove the
engine's belt guard from its brackets at the front
of the
engine.
2. Ease the belt tension
by releasing the raw water pump and
remove the engine drive belt [on carburetor models it will
be necessary to remove the governor belt].
3.
Unscrew the five bolts that hold the pump to the engine
and remove the coolant pump and its gasket. Note that the
pulley
is an integral part of the pump assembly.
COOLANT PUMP
~
LOCKNUT
INSPECTION
GASKET
USE HI- TACK SEALANT
COOLANT PUMP
ASSEMBLY
/L1fi.~~~~THE PULLEY IS PART OF THE PUMP
Carefully check the pump body and impeller for cracks and
damage. Inspect the weep holes for signs
of water leakage
and rust that would indicate a faulty seal. The pulley should
tum the shaft (and impeller) smoothly, without noise or
sluggish rotation.
The pulley edges should be smooth and undamaged and the
locknut should be drawn up tight.
PULLEY
FLANGE?
REPAIR
If the pump does not pass inspection, replace the entire pump
assembly which includes the pulley.
THREE BOLTS
0.24 X 1.38 IN
(96 X35 mm)
INSTALLATION
~~MPBDDY
TWO BOLTS
0.24 X 0.71 IN
(6 X18 mm)
When reinstalling the pump use a new gasket. There are five
bolts in two sizes that fasten the pump in place, make certain
they are positioned properly.
See the diagram above. Use
sealant when assembling the new gasket.
CIRCULATING PUMP BOLT TORQUE 6·7 ft - Ibs (8 -10 Nm)
Engines & Generators
35