Connecting Rod Cap Removal; Piston Pin Removal; Piston Rings Inspection - Mitsubishi 4G1 series Workshop Manual

11A-11-2
4G1 ENGINE (E - W) -
Push rod
Front mark
Front
mark
Guide D
Push in with piston
End gap
Piston ring
E
E
Mitsubishi Motors Corporation
Mitsubishi Motors Corporation
REMOVAL SERVICE POINTS
AA" CONNECTING ROD CAP REMOVAL
(1) Mark the cylinder number on the side of the connecting
Cylinder No.
DEN0050
AB" PISTON PIN REMOVAL
(1) Insert the Push Rod (special tool) from the front arrow
(2) Mount the piston and connecting rod assembly on the
(3) Remove the piston pin using a press.
Base INSPECTION
1. PISTON RINGS
(1) Check the piston ring side clearance. If the clearance
(2) Insert the piston ring into the cylinder bore and push
7EN0475
No. 1 ring
No. 2 ring
Oil ring
Nov. 1995
Dec. 1998
Pistons and Connecting Rods
rod big end to facilitate reassembly.
mark side, then fit guide D.
Piston Pin Setting Base (special tool) with the piston's
front mark pointing upward.
NOTE
After removing the piston pin, keep the piston, piston
pin, and connecting rod together. Do not allow pistons,
piston pins, and connecting rods from different cylinders
to become mixed up.
exceeds the specified limit, replace the ring or piston,
or both.
Standard values:
No. 1 ring: 0.03 - 0.07 mm
No. 2 ring: 0.02 - 0.06 mm
Limits:
No. 1 ring: 0.1 mm
No. 2 ring: 0.1 mm
it down with a piston. Ensure that the piston's crown
is in contact with the ring such that the ring is at 90_
to the cylinder wall. Then, measure the end gap with
a thickness gauge. If the gap is too large, replace the
piston ring.
SOHC
12-VALVE,
DOHC
SOHC
16-VALVE
PWEE9520
PWEE9520-A
Standard values Limits mm
mm
0.20 - 0.35 0.8
0.35 - 0.50 0.8
0.20 - 0.50 1.0
0.10 - 0.40 1.0
Revised