Why Does the Alternator Belt Squeak?

1 Answers
ZaneRose
07/29/25 10:45am
Generator belt squeaking reasons are as follows: 1. Excessive clearance between piston and cylinder wall, overly tight piston pin assembly, or overly tight connecting rod bearing assembly. 2. Piston knocking, loose connecting rod bearings, piston ring leakage, broken piston pin. 3. Severely loose connecting rod bearing cap fixing bolts or completely melted connecting rod bearing alloy, severely loose flywheel fixing bolts. 4. Excessive valve clearance, excessive clearance between tappet and its guide hole, cam profile wear, excessive clearance between valve stem and its guide, broken valve spring, radial fracture of camshaft timing gear, loose valve seat ring, stuck valve unable to close.
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