G120F/G160F/G200F Part IV Disassembly and maintenance
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7) Piston pin bore I.D.
Standard Service limit
G120
13.002mm 13.048 mm
G160 200
18.002mm 18.048 mm
8) Piston pin-to-piston pin bore clearance
Measure piston pin bore I.D. with an inside micrometer
and piston pin O.D. with an outside micrometer. Then
calculate the clearance using the measured values. If the
clearance is out of service limit, the piston or piston pin
may be replaced according to the wearing condition.
Standard Service limit
G120
0.002-0.014mm
0.06 mm
9) Cylinder I.D.
Standard Service limit
G120
60.0mm 60.165 mm
G160 200
68.0mm 68.165 mm
Inspection of connecting rod
Replace the connecting rod if it’s bent, warped, or
its big end cap or the outer race of its small end’s
shaft sleeve is loose, or any of its end has cracks.
1) Connecting rod small end I.D.
Replace the connecting rod if its small end I.D. is
smaller than standard value or is out of service limit.
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