Isuzu 4JB1T - Slapping Noise

SERVICE INF
ORMATION 00 – 13
4. SLAPPING NOISE
Checkpoint Possible cause Correction
Valve c
learance Valve clearance improperly adjusted Adjust the valve clearance
Roc
ker arm Damaged rocker arm Replace the rocker arm
F
lywheel Loose flywheel bolts Retighten the flywheel bolts
Cr
ankshaft and thrust
bearings
Worn or damaged crankshaft and/or thrust
bearings
Replace the crankshaft and/or the
thrust bearings
Cr
ankshaft and
connecting rod
bearings
Worn or damaged crankshaft and/or
connecting rod bearings
Replace the crankshaft and/or the
connecting rod bearings
Connec
ting rod
bushing and piston pin
Worn or damaged connecting rod bushing
and piston pin
Replace the connecting rod bushing
and/or the piston pin
Pis
ton and cylinder
liner
Worn or damaged piston and cylinder liner. Replace the piston and the cylinder
liner.