Mitsubishi Lancer Evolution 7. Manual - part 6
ENGINE -
Base Engine
1-3
BASE ENGINE
PISTON
The top land height has been changed from 5 mm to 6 mm, and the second land height has been
changed from 4.5 mm to 5 mm.
<NEW>
<OLD>
6 mm
5 mm
5 mm
4.5 mm
PISTON RING
The tension of the rings has been changed as shown in the table below, and the thicknesses of the
No. 2 ring and the oil ring have been reduced in order to provide reduced engine friction.
NEW
OLD
PISTON RING No. 1
9.5 N
8.34 N
PISTON RING No. 2
7.0 N
10.49 N
OIL RING
25.0 N
33.34 N
PISTON RING No. 1
PISTON RING No. 2
OIL RING
0.20 ∼ 0.30 mm (New models)
0.25 ∼ 0.35 mm (Old models)
0.35 ∼ 0.50 mm (New models)
0.40 ∼ 0.55 mm (Old models)
0.10 ∼ 0.40 mm
1.2 mm
1.2 mm (New models)
1.5 mm (Old models)
2.0 mm (New
models)
2.8 mm (Old
models)
3.1 mm
3.5 mm (New models)
3.8 mm (Old models)
2.2 mm (New models)
2.5 mm (Old models)