Hyundai 20G-7, Руководство по обслуживанию

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MAIN MOVING SYSTEM
2-50
DISASSEMBLY
1. Remove the cylinder head assembly.
NOTE
Put an identification mark on the connecting rod
and cap before disassembly to refer to the original
position and direction.
2. Remove the oil pan and remove the oil screen.
3. After removing the connecting rod cap, remove the piston
and connecting rod assembly from the cylinder. Arrange
the connecting rod bearing in cylinder number order.
4. Using the special tool piston pin setting tool (09234-
33001) , disassemble the piston from the connecting rod
as below.
1) Remove the piston ring.
2) When placing the assembly on a press, face the front
mark on the piston upward.
3) Using the press, remove the piston pin.
L4GC079A
INSPECTION
PISTON AND PISTON PIN
1. Check the piston for scratch, wear, etc. and replace it if
necessary.
2. Check the piston ring for break, damage and abnormal wear
and replace it if necessary. When replacing the piston, the
ring should be replaced also.
3. Check that the piston pin is inserted in the piston hole and
replace the piston and pin if necessary.
Piston should be smoothly pressed at normal room
temperature.
PISTON RING
1. When measuring the side clearance of piston ring, if the
measured value is out of the limit, insert a new ring to the
ring groove and re-measure the side clearance.
No.1
No. 2
Item
Limit
0.1mm
0.1mm
Specified value
0.04 ~ 0.08mm
0.03 ~ 0.07mm
Side clearance
of piston ring
09234-33001
Press ram
Installer
Support
Remover
Connecting
rod
Adaptor
Piston