Mitsubishi Motors 4G9 - Manual (Page 116)

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4G9 ENGINE (E-W) - Rocker Arms and Camshafts
11A-8-13
PWEE9502 E May 1995 Mitsubishi 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 2000 Mitsubishi Motors Corporation Revised
Outside
cleaning
Inside
cleaning
Filling with
diesel fuel
A B C
Diesel fuel
MD998442
Diesel fuel