Mitsubishi 4G9 series User Manual

4G9 ENGINE (E-W) -
Specifications
11A-1-2
Items Standard value Limit
Cylinder head overall height mm
SOHC 119.9 - 120.1 -
DOHC 131.9 - 132.1 -
DOHC- MIVEC 119.8 - 120.0 -
DOHC- GDI 131.9 - 132.1 -
Thickness of valve SOHC
Intake 1.0 0.5
head (margin) mm
Exhaust 1.3 0.8
DOHC
Intake 1.0 0.5
Exhaust 1.2 0.7
Valve overall height SOHC
Intake 110.15 109.65
mm
Exhaust 113.70 113.20
DOHC
Intake 104.19 103.69
Exhaust 103.87 103.37
DOHC- MIVEC
Intake 115.63 115.13
Exhaust 115.63 115.13
DOHC- GDI
Intake 104.19 103.69
Exhaust 103.87 103.37
Valve spring free length mm
SOHC 50.9 49.9
DOHC 45.0 44.0
DOHC- MIVEC 51.5 50.5
DOHC- GDI 44.8 43.8
Valve spring out-of-squareness Max. 2_ 4_
Valve stem to valve Except DOHC- GDI
Intake 0.02 - 0.05 0.10
guide clearance mm for PAJERO io
Exhaust 0.05 - 0.09 0.15
DOHC- GDI
Intake 0.02 - 0.05 0.10
for PAJERO io
Exhaust 0.04- 0.06 0.15
Valve seat valve contact width mm 0.9 - 1.3 -
Valve guide projection from cylinder head
SOHC 14.0 -
upper surface mm
DOHC 19.0 -
Valve stem projec- SOHC
Intake 49.30 49.80
tion mm
Exhaust 49.35 49.85
DOHC
Intake 46.70 47.20
Exhaust 46.65 47.15
DOHC- MIVEC
Intake 58.13 58.63
Exhaust 57.85 58.35
DOHC- GDI
Intake 46.70 47.20
Exhaust 46.65 47.15
Cylinder head bolt shank length mm - 96.4
PWEE9502-E
E
Dec. 1998Mitsubishi Motors Corporation Revised

Mitsubishi 4G9 series Specifications

General

Brand	Mitsubishi
Model	4G9 series
Category	Engine
Language	English