Walk-Around Inspection; Water Pump - Inspect - Perkins 2506 Operation And Maintenance Manual

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Maintenance Section

Walk-Around Inspection

6. Clean the turbocharger housing with standard
shop solvents and a soft bristle brush.
7. Fasten the air inlet piping and the exhaust outlet
piping to the turbocharger housing.
Walk-Around Inspection
Inspect the Engine for Leaks and
for Loose Connections
A walk-around inspection should only take a few
minutes. When the time is taken to perform these
checks, costly repairs and accidents can be avoided.
For maximum engine service life, make a thorough
inspection of the engine compartment before starting
the engine. Look for items such as oil leaks or
coolant leaks, loose bolts, worn belts, loose
connections and trash buildup. Make repairs, as
needed:
• The guards must be in the proper place. Repair
damaged guards or replace missing guards.
• Wipe all caps and 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 flu-
id levels more often than 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 or deck
is a fire hazard. Remove this debris with steam clean-
ing or high pressure water.
• Ensure that the cooling lines are properly clamped
and that the cooling lines are tight. Check for
leaks. Check the condition of all pipes.
• Inspect the water pumps for coolant leaks.
Note: The water pump seal is lubricated by 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
water pumps and the installation of water pumps and/
or seals, refer to the Service Manual for the engine or
consult your Perkins distributor.
• Inspect the lubrication system for leaks at the front
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crankshaft seal, the rear crankshaft seal, the oil
pan, the oil filters and the valve cover.
• Inspect the fuel system for leaks. Look for loose
fuel line clamps or for loose fuel line tie-wraps.
• Inspect the piping for the air inlet 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 belt and the accessory drive
belts for cracks, breaks or other damage.
Belts for multiple 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 belts are stretched. The additional load on
the new belt could cause the belt to break.
• Drain the water and the sediment from fuel tanks
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 condition.
• Inspect the ECM to the cylinder head ground strap
for a good connection and for good condition.
• Disconnect any battery chargers that are not
protected against the current drain of the starting
motor. Check the condition and the electrolyte
level of the batteries, unless the engine is
equipped with a maintenance free battery.
• Check the condition of the gauges. Replace any
gauges that are cracked. Replace any gauge that
can not be calibrated.

Water Pump - Inspect

A failed water pump might cause severe engine
overheating problems that could result in the
following conditions:
• Cracks in the cylinder head
• A piston seizure
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