REPAIR MANUAL - Wisconsin Motors

The water pump requires no attention other
than bearing replacement when it shows excessive
looseness or if a coolant leak develops
which shows a damaged or badly worn seal that
needs replacement.
REMOVING WATER PUMP
Adjusting Fan Belt Tension
CYLINDER BLOCK COOLANT DRAINS
When the cooling system is to be completely
drained, there is a drain plug on the right hand
side of the cylinder block which drains all coolant
which might be trapped in the base of the block.
The water pump assembly can be removed
from the engine as a unit for service or repair in
the following manner:
1. Drain coolant.
2. Remove fan by taking out four cap screws.
3. Loosen alternator so that fan belt can be
slacked off enough to slide over pulley.
4. Remove fasteners holding the pump body to
the front of the block and remove the pump
assembly.
Coolant Drain
Removing Water Pump
WATER PUMP
The water pump is located on the front of the
cylinder block and is driven by the fan belt from
the crankshaft pulley. The inlet of the water pump
is connected to the lower radiator connection and
the outlet flow from the pump is through integral
passages cast in the block.
No lubrication of the pump is required as the
bearings are of the permanently sealed type and
are packed with special lubrication for the life of
the bearing.
DISASSEMBLY OF WATER PUMP
When replacement of any internal parts
becomes necessary, disassembly must be in the
following sequence in order to prevent damage to
the pump.
1. Use puller to remove fan hub (11) from shaft.
2. Remove countersunk screws (1) holding
cover (2) removing cover and gasket (3).
3. Use puller to remove impeller (4) taking
precautions to prevent damage to the casting.
4. Remove seal (5).
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