TROUBLESHOOTING
TESTING AND ADJUSTING
23. ENGINE USES TOO MUCH LUBRICATION OIL
Cause
Correction
Too Much Lubrication Oil In En-
Remove extra oil. Find where extra oil comes from. Put correct
gine
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.
To Much Oil In Valve Compart-
Make Reference to Item 16.
ment
Worn Valve Guides
Make Reference to Item 16.
Worn Piston Rings And Cylinder
Install new parts if necessary.
Liners
Failure of Seal Rings In Turbo-
Check inlet manifold for oil and make repair to turbocharger if
charger
necessary.
24. ENGINE COOLANT IS TOO HOT
Cause
Correction
Restriction To Air Flow Through
Remove all restrictions to flow.
Radiator or Restriction To Flow
Of Coolant Through The Radia-
tor
Not Enough Coolant In System
Add coolant to cooling system.
Pressure Cap Has A Defect
Check operation of pressure cap. Install a new pressure cap if
necessary.
Combustion Gases in Coolant
Find out where gases get into the cooling system. Make repairs as
needed.
Water Temperature Regulator
Check water temperature regulator for correct operation. Check
(Thermostat) or Temperature
temperature gauge operation. Install new parts as necessary.
Gauge Has A Defect
Water Pump Has A Defect
Make repairs to the water pump as necessary.
Too Much Load On The System
Make a reduction in the load.
Wrong Fuel Injection Timing
Make adjustment to timing.
25. EXHAUST TEMPERATURE IS TOO HIGH.
Cause
Correction
Air Inlet or Exhaust System Has
Remove restriction.
A Restriction
Wrong Fuel Injection Timing
Make an adjustment to the timing.
