Mitsubishi 4G9 User Manual

4G9 ENGINE (E-W) -
Rocker Arms and Camshafts
11A-8-13
PWEE9502
E
May 1995Mitsubishi Motors Corporation
(DOHC)
Caution
1. The lash adjusters are precision-engineered
mechanisms. Do not allow them to become
contained by dirt or other foreign substances.
2. Do not attempt to disassemble the lash adjusters.
3. Use only fresh diesel fuel to clean the lash adjusters.
(1) Prepare three containers and approximately five liters
of diesel fuel. Into each container, pour enough diesel
fuel to completely cover a lash adjuster when it is standing
upright. Then, perform the following steps with each lash
adjuster.
(2) Place the lash adjuster in container A and clean its outside
surface.
NOTE
Use a nylon brush if deposits are hard to remove.
(3) While gently pushing down the internal steel ball using
special tool MD998442, move the plunger through 5 to
10 strokes until it slides smoothly. In addition to eliminating
stiffness in the plunger, this operation will remove dirty
oil.
Caution
The steel ball spring is extremely weak, so the lash
adjuster’s functionality may be lost if the air bleed
wire is pushed in hard.
NOTE
If the plunger remains stiff or the mechanism appears
otherwise abnormal, replace the lash adjuster.
PWEE9502-G
E
May 2000Mitsubishi Motors Corporation Revised
Outside
cleaning
Inside
cleaning
Filling with
diesel fuel
A
B
C
Diesel fuel
MD998442
Diesel fuel

Mitsubishi 4G9 Specifications

General

Brand	Mitsubishi
Model	4G9
Category	Engine
Language	English

Summary

ENGINE 4G9 SERIES

SPECIFICATIONS

Details on engine specifications, including service, rework, torque, and material requirements.

SPECIAL TOOLS

List and description of specialized tools required for engine service procedures.

ALTERNATOR AND IGNITION SYSTEM

Procedures for removal and installation of alternator and ignition system components.

TIMING BELT

Removal, installation, inspection, and adjustment procedures for the timing belt system.

FUEL AND EMISSION CONTROL SYSTEM

Procedures for removal and installation of fuel and emission control system components.

INTAKE AND EXHAUST MANIFOLD

Procedures for removal and installation of intake and exhaust manifolds for various models.

WATER PUMP AND WATER HOSE

Procedures for removal and installation of the water pump and associated hoses.

ROCKER ARMS AND CAMSHAFTS

Procedures for removal, installation, inspection, and adjustment of rocker arms and camshafts.

CYLINDER HEAD AND VALVES

Procedures for cylinder head and valve removal, installation, inspection, and handling.

FRONT CASE AND OIL PUMP

Procedures for removal, installation, and inspection of the front case and oil pump.

PISTON AND CONNECTING ROD

Procedures for removal, installation, and inspection of pistons and connecting rods.

CRANKSHAFT, CYLINDER BLOCK, FLYWHEEL AND DRIVE PLATE

Procedures for removal, installation, and inspection of crankshaft, cylinder block, and related components.