SERVICE INFORMATION 00 – 13
4. SLAPPING NOISE
Checkpoint Possible cause Correction
Valve clearance Valve clearance improperly adjusted Adjust the valve clearance
Rocker arm Damaged rocker arm Replace the rocker arm
Flywheel Loose flywheel bolts Retighten the flywheel bolts
Crankshaft and thrust
bearings
Worn or damaged crankshaft and/or thrust
bearings
Replace the crankshaft and/or the
thrust bearings
Crankshaft and
connecting rod
bearings
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. Replace the piston and the cylinder
liner.
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