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Mitsubishi 4g63 - Service Specifications

Mitsubishi 4g63
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SERVICE SPECIFICATIONS
ENGINE OVERHAUL <4G63-Turbo>
11D-5
SERVICE SPECIFICATIONS
M1113000300776
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 to 196 N) mm
Less than 1
ROCKER ARMS AND CAMSHAFTS
Cam height mm 34.91 34.41
CYLINDER HEAD AND VALVES
Cylinder head gasket surface warp mm Less than 0.05 0.2
Cylinder head gasket surface grinding limit
(including cylinder block grinding amount) mm
0.2
Cylinder head overall height mm 131.9 132.1
Cylinder head bolt nominal length mm
99.4
Valve margin mm Intake valves 1.0 0.5
Exhaust valves 1.5 1.0
Valve stem diameter mm 6.6
Valve face angle 43.5° 44°
Valve stem-to-guide clearance mm Intake valves 0.02 0.05 0.10
Exhaust valves 0.05 0.09 0.15
Valve height mm Intake valves 109.5 109.0
Exhaust valves 109.7 109.2
Valve stem projection mm Intake valves 49.2 49.7
Exhaust valves 48.4 48.9
Valve spring free height mm 47.0 46.0
Valve spring load/height N/mm 240/40
Valve spring squareness 1.5° or smaller 4°
Valve face-to-seat contact width mm 0.9 1.3
Valve guide inside diameter mm 6.6
Valve guide press-in height mm 19.2 19.8
OIL PAN AND OIL PUMP
Oil pump gear side clearance mm Drive gear 0.08 0.14
Driven gear 0.06 0.12
Oil cooler by-pass valve mm Dimension (Normal
temperature)
34.5
By-pass hole closing
temperature 97 to
103°C
40.0

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