Mitsubishi 4G1 series

4G1 ENGINE (E-W) -
Specifications
11A-1-2a
PWEE9520
E
Nov. 1995Mitsubishi Motors Corporation
Item Standard Limit
Pistons and connecting rods
Piston outside diameter mm
4G13 71.0 -
4G15 75.5 -
4G18 76.0 -
Piston ring side clearance mm
No. 1 ring 0.03- 0.07 -
No. 2 ring 0.02- 0.06 -
Piston ring end gap
No. 1 ring 0.20- 0.35 0.8
clearance
No. 2 ring 0.35- 0.50 0.8
Oil ring
4G13, 4G15 0.20- 0.50 1.0
4G18 0.10- 0.40 1.0
Piston pin O. D. mm 18.0 -
Piston pin press-in load (at room temperature) N 4,900- 14,700 -
Crankshaft pin oil clearance mm 0.02- 0.04 0.1
Connecting rod big end side clearance mm 0.10- 0.25 0.4
Crankshaft and cylinder block
Crankshaft end play mm 0.05- 0.18 0.25
Crankshaft journal diameter mm 48.0 -
Crankshaft pin diameter mm 42.0 -
Crankshaft journal oil clearance mm 0.02- 0.04 0.1
Cylinder block gasket surface flatness mm 0.05 or less -
Cylinder block gasket surface grinding limit (including grinding of
cylinder head gasket surface) mm
- 0.2
Cylinder block overall height mm 256 -
Cylinder bore cylindricity mm 0.01 -
Cylinder bore I. D. mm
4G13 71.0 -
4G15 75.5 -
4G18 76.0 -
Piston-to-cylinder clearance mm 0.02- 0.04 -
PWEE9520-D
E
Aug. 2000Mitsubishi Motors Corporation Revised