MAINTENANCE MANUAL OF ENGINE
50
3.4 Dismantling the piston ring and connecting
rod
Dismantle piston ring with suitable piston ring ex-
pander and store the piston ring with corresponding
piston.
Dismantle piston ring assembly A and check ring B;
take out piston pin F and take out connecting rod
body B from piston C. Dismantle connecting rod
bushing E.
A-Piston ring assembly
B-Check ring
C-Piston
D-Connecting rod body
E-Connecting rod bushing
F-Piston pin
When disassembling piston pin, push the piston pin
out by hand. If the piston pin is too tight, heat it to
40/50℃ (100/120℉) so that it can be dismantled
easily.
Squeeze the old connecting rod bushing by suitable
joint.
Attention: check the wear condition of piston ring
when disassembly and replace the new ones when
necessary.
Connecting rod bushing shall use special tool for
disassembly so as to avoid damage.
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