MAINTENANCE MANUAL OF ENGINE
63
3. Install the piston.
A-Piston
B-Special tool
Attention:
Somebody shall knock the piston by stick or rubber
stick on the upper end and somebody shall watch
the swing connecting rod at lower end to avoid
connecting rod bumping on crankshaft journal.
Clean the cylinder liner before installation and coat
clean lubricating oil. Ensure that the bearing cap
hole and bearing shell surface are clean and free of
foreign substance. Refuel clean lubricating oil in
inner surface, or it will influence the fit precision.
4. Install connecting rod cap A
Clean connecting rod bearing shell and connecting
rod cap before installation. Install bearing shell on
bearing cap to guarantee that locating lug is cor-
rectly installed into groove. Lubricate bearing shell
with clean engine lubricating oil. Install bearing
shell cap and make sure that the assembly number
on bearing shell cap is the same with connecting rod
and the half-matching numbers are on the same side.
Install fastener to make sure that bolt head plane
faces connecting rod When nut is adopted as fasten-
er, it must be new. Tighten the new nut to recom-
mended torque evenly.
A-Connecting rod cap
Attention
When installing, the locating slots installed on up-
per bearing shell of connecting rod bearing cap and
connecting rod body shall be on the same side.
5. Fasten connecting rod bolt.
A-Connecting rod bolt
Fasten connecting rod bolts and tighten successive-
ly.
Attention:
The printed word size of connecting rod and bear-
ing cap shall be the same and on the same side.
Bearing caps shall not be changed mutually.
Connecting rod bolt tightening torque--50-60N.m
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