SECTION 10 - ENGINE
10-13
OIL PRESSURE LAMP NOT TURNED ON
(KEY SWITCH “ON” WITH ENGINE NOT STARTED)
CAUSE CORRECTION
Broken lamp bulb Replace bulb
Broken wire between battery to the lamp Correct it
OIL PRESSURE LAMP NOT TURNED OFF
CAUSE CORRECTION
Lack of engine oil Fill oil to the specified level
Fault in the pressure switch Replace the switch
Oil leakage from the lubricating system Inspect and retighten
Clogged oil filter Replace with new one
Short-circuit between EIC panel and oil pressure
switch
Repair
EXCESSIVE SMOKE/ENGINE MISS
CONDITION CAUSE CORRECTION
Good power, but misses or
smokes at top engine speed
Top engine speed too high
Timing off
Adjust top engine speed to factory
limit
Check and adjust engine timing
(refer to Tech Com Video #9701)
White or blue exhaust smoke
during all operating conditions
Excess engine oil
Engine oil viscosity too low
Faulty/late injection timing
Check and correct the level
Check and replace oil
Correct timing
Blue smoke on cold engine
startup
Low combustion temperature
Normal warm-up
Check fuel injection timing, adjust
inlet and exhaust valves, and test
the cylinder
compression
May be difficult to stop blue
smoke on startup completely
Dark exhaust smoke Fuel cetane rating not optimal
Excess injection
Faulty function of the engine
Overloading
Clogged air cleaner
Leaks
Valve cover vent hose kinked or
clogged
Use only fuel with a cetane rating
of 50 or higher
Inspect and adjust (in service
shop)
Repair in service
Reduce the load
Clean
Seal off all leaks
Shorten hose to 460 mm (18.1″)
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