TM 5-3805-260-2417
17.
ENGINE HAS EARLY WEAR
Cause
Correction
Dirt in Lubrication Oil
Remove dirty lubrication oil. Install a new oil filter element. Put clean oil in the
engine.
Air Inlet Leaks
Inspect all gaskets and connections. Make repairs if leaks are found.
Fuel Leakage Into
This will cause high fuel consumption and low engine oil pressure.
Lubrication Oil
Make repairs if leaks are found. Install new parts where needed.
18.
COOLANT IN LUBRICATION OIL
Cause
Correction
Failure of Oil Cooler Core
Install a new core for the oil cooler.
Failure of Cylinder Head
Install a new cylinder head gasket. Tighten the bolts holding the
Gasket
cylinder head, according to the Specifications.
Crack or Defect in Cylinder
Install a new cylinder head.
Head
Crack or Defect in Cylinder
Install a new cylinder block.
Block
Failure of Front Cover
Install a new front cover gasket.
Gasket
19.
TOO MUCH BLACK OR GRAY SMOKE
Cause
Correction
Not Enough Air For
Check air cleaner for restrictions. [Max. 25 in. (635 mm) of
Combustion
water].
Bad Fuel Injection Nozzle(s)
Install new fuel injection nozzle(s).
Wrong Fuel Injection Timing
Make adjustment to timing.
20. TOO MUCH WHITE OR BLUE SMOKE
Cause
Correction
Too Much Lubrication Oil in
Remove extra oil. Find where extra oil comes from. Put correct
Engine
amount of oil in engine. Do not put too much oil in engine.
Misfiring or Running Rough
Make reference to ITEM 2.
Wrong Fuel Injection Timing
Make adjustment to timing.
Worn Valve Guides
Reconditioning of cylinder head is needed.
Worn Piston Rings
Install new parts as necessary.
Defect in Timing Advance
Replacement of timing advance unit is needed.
Unit
2-30
