Isuzu A-4JB1 Repair Manual

TROUBLESHOOTING
199
OK
OK
OK
OK
OK
OK
Valve clearance
Valve clearance improperly
adjusted
Adjust the valve clearance
Rocker arm Damaged rocker arm Replace the rocker arm
Loose flywheel bolts Retighten the flywheel bolts
Worn or damaged crankshaft
and/or thrust bearings
Replace the crankshaft and/or the
thrust bearings
Crankshaft and connecting rod
bearings
Crankshaft and thrust bearings
Flywheel
Worn or damaged crankshaft
and/or connecting rod bearings
Replace the crankshaft and/or the
connecting rod bearings
Connecting rod bushing and
piston pin
Worn or damaged connecting
rod bushing and piston pin
Replace the connecting rod
bushing and/or the piston pin
Piston and cylinder liner
Worn or damaged piston and
cylinder liner
Foreign material in the cylinder
Replace the piston and the cylin-
der liner
NG NG
NG NG
NG NG
NG NG
NG NG
NG NG
NG NG
10. ABNORMAL ENGINE NOISE
4. Slapping Noise
Checkpoint Trouble Cause Countermeasure

Isuzu A-4JB1 Specifications

General

Brand	Isuzu
Model	A-4JB1
Category	Engine
Language	English