Disassemble Of Crank Connecting Rod Mechanism - Chery QQ Service Manual

Chery QQ Service Manual
Mechanical Part of SQR 472Engine

2 Disassemble of Crank Connecting Rod Mechanism

2.1 Inspect the axial momentum of the connecting rod
2.1.1 Measure the axial clearance with a dial gauge or
feeler gauge.
Standard value: 0.15-0.25mm
Limit: 1.2mm
2.2 Inspect the connecting rod bushing for its radial
clearance.
2.2.1 Remove the bushing cap.
Notice: The components of each cylinder shall be placed
in order.
2.2.2 Clean the bearing bushing and the axle.
2.2.3 Conduct radial adjustment for the axial diameter of
connecting rod with clearance gauge.
Tighten the bushing cap with specified torque.
Torque: 40±2N.m
Notice: The crankshaft may not rotate.
2.2.4 Remove the bushing cap, measure the maximum
thickness of the searcher.
Standard value: 0.020-0.044 mm
Limit: 0.07 mm
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