Mitsubishi 3000GT 1991 Service Manual page 97

ENGINE
(7) Check that the piston moves smoothly.
8. INSTALLATION OF OIL RING
NOTE
On the side rail and the spacer, no difference exists
between the upper and the lower surfaces.
the side rail, engage one side of the side rail with the
piston groove. If pressed with a finger, as shown in the
illustration, it should enter easily.
NOTE
The side rail may be broken like other piston rings if the
gap is opened by the ring expander.
(3) In the same procedure as Step (2), position the side rail
on the lower side.
(4) Check that the side rail smoothly rotates in both
directions.
7. INSTALLATION OF PISTON RING No. 2 / 6. PISTON
RING No.1
No.1 piston rings.
Identification mark: No.1
NOTE
(1) Keep in mind that Nos.1 and 2 are different in shape.
(2) Assemble the Nos.1 and 2 piston rings with the
Revision
TSB
No.2
manufacturer and size marks stamped on the side
facing upward (toward the piston top).
T
T2