New Holland LS140 Workshop Manual page 46

PROBLEM
Oil pressure lamp not turning off
Excessive oil consumption
EXCESSIVE SMOKE/ENGINE MISS
PROBLEM
Good power, but misses or smokes
at top engine speed
White or blue exhaust smoke
during all operating conditions during all operating conditions
Blue smoke on cold engine startup Low combustion temperature
Dark exhaust smoke
SECTION 10 - ENGINE
CAUSE
Lack of engine oil
Fault in the pressure switch
Oil leakage from the lubricating
system
Clogged oil filter
Short-circuit between EIC panel
and oil pressure switch
Leaks
Valve cover vent hose kinked or
clogged
CAUSE
Top engine speed too high
Timing off
Excess engine oil
Engine oil viscosity too low
Faulty/late injection timing
Normal warm-up
Fuel cetane rating not optimal
Excess injection
Faulty function of the engine
Overloading
Clogged air cleaner
Leaks
Valve cover vent hose kinked or
clogged
10-11
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CORRECTION
Fill oil to the specified level
Replace the switch
Inspect and retighten
Replace with new one
Repair
Seal all leak sources
Shorten hose to 460 mm (18.1")
CORRECTION
Adjust top engine speed to factory
limit
Check and adjust engine timing
(refer to Tech Com Video #9701)
Check and correct the level
Check and replace oil
Correct timing
Check fuel injection timing, adjust
inlet and exhaust valves, and test
the cylinder compression
May be difficult to stop blue smoke
on startup completely
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")