TM 5-3805-258-24-1
T R O U B L E S H O O T I N G
T E S T I N G
A N D
A D J U S T I N G
23. ENGINE USES TOO MUCH LUBRICATION OIL
Cause
Correction
Too Much Lubrication Oil in Engine
Remove extra oil. Find where extra oil comes from. Put correct
amount of oil in engine. Do not put too much oil in engine.
Oil Leaks
Find all oil leaks. Make repairs as needed.
Oil Temperature is Too High
Check operation of oil cooler. Install new parts if necessary. Clean
the core of the oil cooler.
Too much Oil in Valve
Make Reference to Item 16.
Compartment
Worn Valve Guides
Make Reference to Item 16.
Worn Piston Rings and Cylinder
Install new parts if necessary.
Liners
Failure of Seal Rings in
Check inlet manifold for oil and make repair to turbocharger if
Turbocharger
necessary.
24. ENGINE COOLANT IS TOO HOT
Cause
Restriction To Air Flow Through
Radiator or Restriction To Flow Of
Coolant Through the Radiator
Not Enough Coolant in System
Pressure Cap Has a Defect
Combustion Gases in Coolant
Water Temperature Regulator
(Thermostat) or Temperature
Gauge Has A Defect
Water Pump Has a Defect
Too Much Load On The System
Wrong Fuel Injection Timing
Correction
Remove all restrictions to flow.
Add coolant to cooling system.
Check operation of pressure cap. Install a new pressure cap if
necessary.
Find out where gases get into the cooling system. Make repairs as
needed.
Check water temperature regulator for correct operation. Check
temperature gauge operation. Install new parts as necessary.
Make repairs to the water pump as necessary.
Make a reduction in the load.
Make adjustment to timing.
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