Daewoo DE12T Manual page 88

•
Identify the mark "Y" or "TOP" on the
ring end to prevent the top and bottom
of the piston ring from being inter-
changed and make the marked por-
tion face upward.
•
Adjust the angle among individual pis-
ton ring gaps to 90˚ and fit a piston
assembling jig onto the piston, Use
care not to match the ring gaps with
the pin direction.
•
Install the bearing by aligning it with
the connecting rod key groove and
apply oil to the bearing and piston.
•
Position the valve seating surface
toward the tappet hole and insert the
piston with hand.
Use care not to damage the cylinder
liner and piston, and slightly lift and
insert the piston into the cylinder so
that the ring may not be damaged by
the fillet of the liner.
•
Install the bearing in the connecting
rod cap and apply oil.
•
Make sure that the manufacture serial
numbers impressed on the connecting
rod cap and connecting rod big end are
identical, and install the connecting rod
cap by aligning it with dowel pin.
•
Wet the fixing bolts with oil, semi-tight-
en them with hand, tighten them to 15
kg.m for 1st stage and 22 kg.m for 2nd
stage respectively, and finally to spec-
ified torque.
Torque
REASSEMBLY
28 kg . m
- 84 -
피스톤 링 제작사 표시
Marked with the name of piston ring
manufacturing company
O
45
2nd ring gap 2번 링 갭
Piston pin
피스톤 핀
피스톤
Piston
Tappet hole
타펫 구멍
Valve seating
밸브 자리면
EAMD090I
EAMD090I
O
45
Top ring gap
1번 링 갭
O
90
오일 링 갭
Oil ring gap
EA8M3006
EAMD092I