Yanmar YM240 - White Smoke and Unusual Engine Noises

84 Trouble shooting
PROBLEM CAUSE
REMEDY
PAGE
n
REFERENCE
ELECTRICAL SYSTEM
n
ENGINE EMITS BLACK OR
GRAY SMOKE
ENGINE EMITS WHITE
SMOKE
UNUSUAL NOISE
Engine out of timing.
Improper governor
adjust-
ment.
Improper
type of fuel.
Low engine temperature.
Engine out of timing.
Low compression pressure.
Engine oil burned in com-
bustion chamber.
Defective component parts.
See your YANMAR dealer.
See your YANMAR dealer.
Use proper fuel.
Warm up engine to normal
operating temperature.
See your YANMAR dealer.
See your YANMAR dealer.
Check oil level or see YANMAR
dealer.
See your YANMAR dealer.
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-
54
27
-
-
67
-
-
76
72
-
22
76
-
29
76
-
72
-
Clean and tighten connec-
tions.
Check electrolyte level and
specific gravity.
Adjust belt tension or replace
belt.
See your YANMAR dealer.
Allow engine to idle only when
necessary.
Replace battery.
Apply load to battery and have
voltage regulator checked.
Increase speed.
Check electrolyte level and
specific gravity.
Have YANMAR dealer check
alternator.
Tighten belt.
Have YANMAR dealer check
regulator.
BATTERY
WILL NOT
CHARGE
BATTERY USES TOO MUCH
WATER
CHARGING INDICATOR LAMP
GLOWS
WITH ENGINE
RUNNING
Loose or corroded connec-
tions.
Sulfated or worn-out
battery.
Loose or defective alter-
nator belt.
Defective alternator.
regulator or main switch.
Excessive
engtne idling.
Cracked battery case.
Overcharged
batten/.
Low engine speed.
Defective battery.
Defective alternator.
Slipping belt.
Defective regulator.