3---3
INDICATION/
REFERENCE
TROUBLE
POSSIBLE CAUSES
PARAGRAPH
3.1.5Miscellaneous Engine Troubleshooting (continued)
b. Vibration
Engine shockmounts defective
Replace
Poor compression
Engine Manual
Fuel solenoid or linkage
4.3.3
c. Overheating
Restriction in air cleaner
4.3.6
Exhaust pipe restriction
Remove
Restriction in water jacket
Check
Loose water pump V---belt
4.5
Restriction in radiator
4.3.1
Coolant level too low
1.4.c
Defective thermostat
Engine Manual
Defective water pump
Engine Manual
d. Excessive crankcase
pressure
Plugged crankcase breather line
4.3.7
3.2 ALTERNATOR (AUTOMOTIVE TYPE)
Battery Undercharged
Defective cables, dirty battery posts or
corroded terminals
4.4.1
Loose or broken belt
4.5
Worn or broken brushes
4.4.5
Defective alternator system
Defective wire harness
Replace
Broken brush
4.4.5
Defective alternator
Replace
Battery Overcharged
Defective alternator system
Check
---excessive use of water.
Voltmeter indicates greater
than 14.5 volts (connected
across battery with no load)
with engine idling.
Battery charges at idle, but
Slipping belt
4.5
discharges under load conditions.
Alternator defective
Prestolite Manual