5.1.1 Assemble the piston, connecting rod and the
piston pin with special tool following the instructions
below:
5.1.1.1 Spread engine oil over the pin hole of the
connecting rod, assemble according to the group mark and
direction mark of piston and connecting rod.
5.1.1.2 Assemble the piston and the connecting rod with
special tools shown in the right figure.
5.1.1.3 Adjust and assemble the piston and connecting
rod as indicated in the right figure. Spread the piston pin
with oil and then assemble the piston and connecting rod
with a oressing machine.
Notice: When pressing in the piston pin, make sure the
fitting direction is correct.
·When the piston pin is pressed into the piston, the
small end of the connecting rod should be heated
to 300 , and the pin should be aligned properly. ℃
5.2 Install the first and second pistion ring and the oil ring
according to the following instruction:
5.2.1 Installation of piston ring
Make the side with marks face upwards, and then fix it
with piston pin tools.
5.2.2 Mount the steel tape combined oil ring (bushing
ring lower, lower blade, upper blade) firstly, and then
mount the second gas ring, and finally mount the first gas
ring. Opening angles of rings are shown in the figure:
0
Mark Forward
Align and Straight
Mark
1
st
Ring
2nd Ring
Oil Ring
Lower Blade
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