80 SEBU8121
Maintenance Section
W ater Pump - Inspect
•
The guards must
be in the correct place. Repair
damaged guards or replace missing guards.
•
Wipe all caps a
nd plugs before the engine is
serviced in order to reduce the chance of system
contamination.
NOTICE
For any type of
leak (coolant, lube, or fuel) clean up the
fluid. If leaking is observed, find the source and correct
the leak. If leaking is suspected, check the fluid levels
more often th
an recommended until the leak is found
or fixed, or until the suspicion of a leak is proved to be
unwarranted.
NOTICE
Accumulated grease and/or oil on an engine is a fire
hazard. Remove the accumulated grease and oil. Re-
fer to this Operation and Maintenance Manual, “En-
gine - Clean” for more information.
•
Ensure that the cooling system hoses are correctly
clamped and that the cooling system hoses are
tight. Check for leaks. Check the condition of all
pipes.
•
Inspect the water pump for coolant leaks.
Note: The water pump seal is lubricated by the
coolant in the cooling system. It is normal for a small
amount of leakage to occur as the engine cools down
and the parts contract.
Excessive coolant leakage may indicate the need
to replace the water pump seal. For the removal of
the water pump and the installation of water pump
and/or seal, refer to the Disassembly and Assembly
Manual, “Water Pump - Remove and Install” for more
information or consult your Perkins dealer or your
Perkins distributor.
•
Inspect the lubrication system for leaks at the front
crankshaft seal, the rear crankshaft seal, the oil
pan, the oil filters and the rocker cover.
•
Inspect the fuel system for leaks. Look for loose
fuel line clamps and/or tie-wraps.
•
Inspect the piping for the air intake system and the
elbows for cracks and for loose clamps. Ensure
that hoses and tubes are not contacting other
hoses, tubes, wiring harnesses, etc.
•
Inspect the alternator belts and any accessory
drive belts for cracks, breaks or other damage.
Belts for multi
ple groove pulleys must be replaced as
matched sets. If only one belt is replaced, the belt will
carry more load than the belts that are not replaced.
The older belt
s are stretched. The additional load on
the new belt could cause the belt to break.
•
Drain the wat
er and the sediment from the fuel
tank on a daily basis in order to ensure that only
clean fuel enters the fuel system.
•
Inspect the wiring and the wiring harnesses for
loose connections and for worn wires or frayed
wires.
•
Inspect the ground strap for a good connection and
for good cond
ition.
•
Disconnect any battery chargers that are not
protected a
gainst the current drain of the starting
motor . Check the condition and the electrolyte level
of the batteries, unless the engine is equipped with
a maintena
nce free battery.
•
Check the condition of the gauges. Replace any
gauges tha
t are cracked. Replace any gauge that
can not be calibrated.
i01907756
Water Pump - Inspect
A failed water pump may cause severe engine
overheati
ng problems that could result in the following
conditions:
•
Cracks in t
he cylinder head
•
Apistonseizure
•
Other potential damage to the engine
Note: The w
ater pump seal is lubricated by the
coolant in the cooling system. It is normal for a small
amount of leakage to occur as the engine cools down
and parts
contract.
Visually inspect the water pump for leaks. Renew
the water
pump seal or the water pump if there
is an excessive leakage of coolant. Refer to the
Disassembly and Assembly Manual, “Water Pump
-Remove
and Install” for the disassembly and
assembly procedure.
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