2.2.5 If it is beyond the limit, replace the bearing
bushing.
Notice: Replacing the bearing bushing with the product
of the same manufacturer’s brand. The thickness of the
connecting rod bushing which meets the requirements of
clearance = diameter of big end hold – axial diameter of
connecting rod – standard value of bearing bushing
clearance
2.2.6 Remove the connecting rod bearing cap and the
connecting rod bearing bushing
2.2.7 Put vinyl-resin protecting jacket on the threaded
part of the connecting rod bolt so as to prevent the bolts
from scraping the cylinder hole and the crannkshaft
connecting rod journal, and then disassemble the piston
connecting rod by using the hammer handle striking it out.
2.3 Inspect the axial clearance of crankshaft
2.3.1 Measure the axial clearance of the crankshaft with
a dial gauge, if it is beyond the limit, it is necessary to
replace the axial thrust plate or the crankshaft.
Standard value: 0.089-0.211mm
Limit: 0.30mm
Item Standard value
1.9
-0.11
-0.03
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