Maintenance
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5) Connecting rod inspection
a) Distorsion
Check the connecting rod for distortion. As shown in the figure below, install the connecting rod
to the connecting rod tester, and check for distortion using a feeler gauge. If the connecting rod is
found distorted, never re-use it but replace with a new one.
b) Holes alignment (parallelism)
Measure the alignment of the
connecting rod piston pin bushing
holes with connecting rod big end
holes. At this time also, use both
connecting rod tester and feeler gauge.
a) Wear
Assemble the connecting rod to the crankshaft and measure connecting rod big end side
clearance using a feeler gauge.
Assemble the connecting rod to the piston and measure connecting rod small end side clearance.
If the measured values are beyond the limit, replace the connecting rod.
Standard Limit
0.05 mm 0.1 mm or less
Limit 0.5 mm
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