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Section 3 Knocking Sound inside the Petrol Engine
No.
Trouble Phenomenon and Cause
Troubleshooting
1
Worn bush, camshaft cam and rocker
Replace
2
Severe wear of camshaft, connecting rod neck and
piston pin
Replace or repair
3
Damaged piston ring
Replace
4
Improper throttle valve clearance
Adjust
5
Excessive thrust clearance of the camshaft
Adjust