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6A1 ENGINE (E-W) -
Piston and Connecting Rod
11A-14-4
"
B
A
OIL RING INSTALLATION
(1) Fit t he oil ring spacer into the piston ring groove.
NOTE
The side rails and spacer may be installed in either
direction.
(2) Install the upper side rail.
To install the side rail, first fit one end of th e rail into
the piston groove, then press the remaining portion into
position by finger. Se e illustration.
NOTE
Do not use piston ring expander when installing side
rail. Use of ring expander to expand the side rail end
gap can break th e side rail, unlike other piston rings.
(3) Install the lower side rail in the same procedure as
described in step (2).
(4) Make sure that the side rails move smoothly in either
direction.
"
C
A
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
NOTE
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
"
D
A
PISTON AND CONNECTING ROD INSTALLATION
(1) Liberally coat engine oil on the circumference of the piston,
piston ring, an d oil ring.
(2) Arrange the piston ring and oil ring gaps (side rail and
spacer) as shown in the figure.
(3) Rotate crankshaft so that the crank pin is on center of
the cylinder bore.
PWEE9622
E
Feb. 1997Mitsubishi Motors Corporation
6AE0194
1EN0269
Side rail gap
7EN0452
Piston ring expander
9EN0524
Size mark
Identification mark
Identification mark
No.1
No.2
6EN0549
Upper
side rail
No. 1
No. 2 ring ga p
and spacer gap
Lower
side rail
Piston pin