SERVICE SPECIFICATIONS
Item
Standard value
Limit
TIMING BELT
Auto-tensioner rod extension length
(with timing belt installed) mm
3.8 - 4.5
-
Auto-tensioner rod extension length (when free) mm
12.0
-
Auto-tensioner rod retraction length
(when pressed with force of 98 - 196N) mm
Less than 1
-
ROCKER ARMS AND CAMSHAFT
Cam height mm
Intake
4G63
37.39
36.89
4G64
37.39
36.89
Exhaust
4G63
37.14
36.64
4G64
36.83
36.33
CYLINDER HEAD AND VALVES
Cylinder head bolt nominal length mm
-
99.4
Cylinder head gasket surface warp mm
Less than 0.03
0.2
Cylinder head gasket surface grinding limit (including cylinder block grinding amount) mm
-
0.2
Cylinder head overall height mm
119.1 - 120.1
-
Valve margin mm
Intake
1.0
0.5
Exhaust
1.2
0.7
Valve stem diameter mm
6.0
-
Valve face angle
45.5°
-
Valve height mm
Intake
112.30
111.80
Exhaust
114.11
113.61
Valve spring free height mm
50.8
49.8
Valve spring squareness
2°or less

Valve stem-to-guide clearance mm
Intake
0.02 - 0.05
0.10
Exhaust
0.04 - 0.07
0.15
Valve stem projection mm
49.30
48.90
Valve spring load/height N/mm
267/44.2
-
Valve face-to-seat contact width mm
0.9 - 1.3
-
Valve guide inside diameter mm
6.0
-
Valve guide press-in height mm
14.0
-
FRONT CASE AND OIL PAN
Oil pump gear side clearance mm
Drive gear
0.08 - 0.14
-
Driven gear
0.06 - 0.12
-
PISTONS AND CONNECTING RODS
Piston outside diameter mm
4G63
85.0
-
4G64
86.5
-
Piston pin press-in load (at ambient temperature) N
7350 - 17200
-
Connecting rod big end thrust clearance mm
0.10 - 0.25
0.4
Piston ring side clearance in ring groove mm

No. 1

4G63
0.02 - 0.06
0.1
4G64
0.03 - 0.07
0.1
No. 2

4G63
0.02 - 0.06
0.1
4G64
0.02 - 0.06
0.1
Piston ring end gap mm
No. 1

4G63
0.20 - 0.30
0.8
4G64
0.25 - 0.35
0.8
No. 2

4G63
0.30 - 0.45
0.8
4G64
0.40 - 0.55
0.8
Oil ring
0.10 - 0.40
1.0
Piston pin outside diameter mm
22.0
-
Oil clearance at crankshaft pins mm
0.02 - 0.05
0.1
CRANKSHAFT AND CYLINDER BLOCK
Crankshaft bearing cap bolt nominal length mm
-
71.1
Crankshaft end play mm
0.05 - 0.25
0.40
Crankshaft journal diameter mm
57.0
-
Crankshaft pin diameter mm
45.0
-
Oil clearance at crankshaft journals mm
0.02 - 0.04
0.1
Cylinder block gasket surface warp mm
0.05
0.1
Cylinder block gasket surface grinding limit (including cylinder head grinding amount) mm
-
0.2
Cylinder block overall height mm
4G63
284
-
4G64
290
-
Cylinder bore diameter mm
4G63
85.0
-
4G64
86.5
-
Taper of cylinder mm
0.1 or less
-
Cylinder-to-piston clearance mm
0.02 - 0.04
-

©2004 Mitsubishi Motors Corporation