108
SEBU8603-01
Maintenance Section
Water Pump - Inspect
High Pressure Fuel Lines
Contact with high pressure fuel may cause
fl
uid
penetration and burn hazards. High pressure fu-
el spray may cause a
fi
re hazard. Failure to fol-
low these inspection, maintenance and service in-
structions may cause personal injury or death.
After the engine has stopped, you must wait for
10 minutes in order to allow the fuel pressure to
be purged from the high-pressure fuel lines before
any service or repair is performed on the engine
fuel lines. If necessary, perform minor adjustments.
Repair any leaks from the low-pressure fuel system
and from the cooling, lubrication or air systems.
Replace any high-pressure fuel line that has leaked.
Refer to Disassembly and Assembly Manual, “Fuel
Injection Lines - Install”.
If you inspect the engine in operation, always use
the proper inspection procedure in order to avoid
a
fl
uid penetration hazard. Refer to Operation and
Maintenance Manual, “General hazard Information”.
Visually inspect the high-pressure fuel lines for
damage or signs of fuel leakage. Replace any
damaged high-pressure fuel lines or high-pressure
fuel lines that have leaked.
Ensure that all clips on the high-pressure fuel lines
are in place and that the clips are not loose.
•
Inspect the rest of the fuel system for leaks. Look
for loose fuel line clamps.
•
Drain the water 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. Check for any loose tie-wraps or missing
tie-wraps.
•
Inspect the 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
cannot be calibrated.
i03570653
Water Pump - Inspect
A failed water pump may cause severe engine
overheating problems that could result in the following
conditions:
•
Cracks in the cylinder head
•
A piston seizure
•
Other potential damage to the engine
g01904773
Illustration 71
(A) Weep hole
(B) Vent hole
Note:
The water pump seals are lubricated by the
coolant in the cooling system. It is normal for a small
amount of leakage to occur. Refer to illustration 71
for the position of the weep hole and the vent hole.
Visually inspect the water pump for leaks.
Note:
If engine coolant enters the engine lubricating
system the lubricating oil and the engine oil
fi
lter must
be replaced. This will remove any contamination that
is caused by the coolant and this will prevent any
irregular oil samples.