Mitsubishi 4G9 Automobile User Manual


 
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4G9 ENGINE (E–W) – Specifications
11A-1-4
Items LimitStandard value
Cylinder block overall height mm 4G92 243.5
4G93 263.5
4G94 286.7
Cylinder block I.D. mm 4G92, 4G93 81.0
4G94 81.5
Piston to cylinder clearance mm 0.02 – 0.04
Bearing cap bolt shank length mm 71.1
Crankshaft end play mm 0.05 – 0.25 0.4
Crankshaft journal O.D. mm 50
Crankshaft pin O.D. mm 45
REWORK DIMENSIONS
Items Standard value
Cylinder head and valve
Oversize rework dimensions of valve guide hole (both intake and
exhaust) mm
0.05 O.S. 11.05 – 11.07
exhaust) mm
0.25 O.S. 11.25 – 11.27
0.50 O.S. 11.50 – 11.52
Oversize rework dimensions of intake valve
seat hole mm
SOHC 0.30 O.S. 31.80 – 31.83
seat hole mm
0.60 O.S. 32.10 – 32.13
DOHC 0.30 O.S. 34.30 – 34.32
0.60 O.S. 34.60 – 34.62
Oversize rework dimensions of exhaust valve
seat hole mm
SOHC 0.30 O.S. 29.30 – 29.32
seat hole mm
0.60 O.S. 29.60 – 29.62
DOHC 0.30 O.S. 30.80 – 30.82
0.60 O.S. 31.10 – 31.13
Crankshaft, flywheel and drive plate
Crankshaft out of roundness and taper of journal and pin mm 0.005
NOTE
O.D.: Outer diameter
I.D.: Inner diameter
O.S.: Oversize diameter
PWEE9502-I
E
Mar. 2001Mitsubishi Motors Corporation Revised