114 870984-01
June 1, 1999
Engine Lacks Power
Symptom Possible Cause Remedy
Engine overheating Water level too low Top up the radiator. Check for leaks
and repair
Drive belt slipping Inspect, adjust or replace the drive
belts
Radiator filler cap not sealing or
worn
Fit new radiator filler cap
Exhaust restriction Locate and repair the restriction
Blocked radiator Clean radiator
Engine running too cold Temperature gauge faulty Check temperature gauge. Contact
your
BELL
Product Support Repre-
sentative.
Incorrect fan fitted Check the manufacturer’s specifica-
tion. Contact your
BELL
Product
Support Representative
Incorrect radiator fitted Check the manufacturer’s specifica-
tion. Contact your
BELL
Product
Support Representative
Engine knocking Incorrect fuel grade Drain and refill if necessary
Engine Difficult to Start
Symptom Possible Cause Remedy
Loss of power Air filter restriction Service the air filter system
Exhaust restriction Locate and repair the restriction
Engine does not attain the required
speed during daily brake test
Tachometer error Re-calibrate the tachometer. Con-
tact your
BELL
Product Support
Representative.
Loss of power Refer to “Loss of Power” in this table
Excessive Fuel Consumption
Symptom Possible Cause Remedy
Excessive fuel consumption External fuel tank leak Check the fuel tank, fuel lines and fil-
ter for leaks and/or damage
Too low operating temperature Check and repair cooling system
Air filter restriction Service the air filter system
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