Mitsubishi 4G9 User Manual
4G9 ENGINE (E–W) –
Piston and Connecting Rod
11A-11-5
PWEE9502
E
May 1995
Mitsubishi Motors Corporation
"CA PISTON RING NO.2/PISTON RING NO.1
INSTALLATION
(1) Using piston ring expander, install the piston rings with
their side having identification marks facing up.
Identification mark:
No.1 ring: T
No.2 ring: 2T or T2
No.2 ring: 2T or T2
NOTE
The piston ring is stamped with the following size mark.
The piston ring is stamped with the following size mark.
Size
Size mark
Standard size
None
0.50 mm O.S.
50
1.00 mm O.S.
100
"DA PISTON AND CONNECTING ROD INSTALLATION
(1) Liberally coat engine oil on the circumference of the piston,
(1) Liberally coat engine oil on the circumference of the piston,
piston ring and oil ring.
(2) Arrange the piston ring and oil ring gaps (side rail and
spacer) as shown in the illustration.
(3) Face the front mark (arrow) on the top of the piston toward
the camshaft sprocket.
(4) Using a suitable piston ring compressor tool, insert the
piston and connecting rod assembly into the cylinder block.
Caution
Do not strike the piston into the cylinder block because
the piston ring or crank pin will be damaged.
Do not strike the piston into the cylinder block because
the piston ring or crank pin will be damaged.
Identification mark “T”
Identification mark
“2T” or ”T2”
“2T” or ”T2”
Size mark
No.1
No.2
PWEE9502-L
E
Apr. 2003
Mitsubishi Motors Corporation
Revised
Upper side rail
No.1 ring
Piston pin
No.2 ring and
spacer
spacer
Lower side rail