engine MITSUBISHI SPYDER 1990 Service Repair Manual

11ENGINE
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11 ENGINE OVERHAUL Fuel and . .
INJECTORS
(1) Before installing an injector, the rubber O-ring must be
lubricated with a drop of clean engine oil to aid in installa-
tion.
(2) Install injector top end into fuel rail. Be careful not to
damage O-ring during installation.
FUEL ‘PRESSURE REGULATOR INSTALLATION
Before the pressure regulator, the O-ring must be
lubricated with a drop of clean engine.
to aid in
installation.
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ENGINE OVERHAUL Intake Manifold
REMOVAL AND INSTALLATION
REMOVAL AND INSTALLATION
3024IAI
13
18 Nm 13
13
10
31 Nm22
Removal steps
7 .
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ENGINE OVERHAUL intake Manifold
sealant
3 mm
bead sealant
INSTALLATION SERVICE ,
S E A L A N T TO
HOUSING
Specified sealant:Mitsubishi Genuine Part No.
or equivalent
NOTE
(1) Be sure to install the housing quickly while sealant
is wet (within 15 minutes).
(2) After installation, keep the sealed area away f rom the
oil and coolant for approx. one hour.
SEALANT APPLICATION TO WATER
FITTING
S p e c i f i e d s e a l a n t :
Mitsubishi Genuine Part No.’ or equivalent
NOTE
(1) Be sure to install the housing quickly while th e sealant
is wet (within 15 minutes).
(2) After installation, keep the sealed area away f rom the
oil and coolant for approx. one hour.
SEALANT APPLICATION COOLANT
T E M P E R A T U R E S E N S O R
Specified sealant:
Nut Locking Part No. or equivalent
SEALANT APPLICATION TO ENGINE COOLANT TEMPERATURE GAUGE UNIT
Specified sealant:
ATD Part No. 8680 or equivalent
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ENGINE OVERHAUL Exhaust Manifold
REMOVAL AND INSTALLATION
3022
1410
28
14
Removal steps
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ENGINE OVERHAUL Exhaust Manifold and.
WATER ,
(1) Wet the O-ring (with
Caution
Keep the O-ring free of oil or grease.
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ENGINE OVERHAUL Rocker Arms
REMOVAL AND INSTALLATION
3.32.4
6
2
R e m o v a l s t e p s
2.
4.
6. 7 .
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ENGINE OVERHAUL Rocker Arms and Camshaft
R E M O V A L S E R V I C E
ARMS AND ARM
REMOVAL.
Before removing rocker arms and shafts assembly, install
the special tool as illustrated to prevent adjuster from dropping.
INSTALLATION SERVICE POINTS
LASH ADJUSTER INSTALLATION
(1) Immerse the’ lash adjuster in clean diesel fuel .
(2) Using a special tool, move the plunger up and d own
4 or 5 times while pushing down lightly on the chec k
bail in order to bleed out the air.
(3)
the lash adjuster to rocker arm, being careful not
to spill the diesel fuel. Then use the special tool to prevent
adjuster from falling while installing it.
ARMS AND
ROCKERARM SHAFT
(1) Temporarily tighten the rocker the bolt so that
all rocker arms on the inlet valve side do not push the
valves.
(2) Fit the rocker shaft spring from the above and position
it so that it is right angles to the plug
NOTE
Install the rocker shaft spring before installing t he exhaust
side rocker arms and ‘rocker arm shaft.
Remove the special tool for securing the lash adjus ter.
Make sure that the notch in the rocker arm shaft is in
the direction as illustrated.
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ENGINE OVERHAUL Rocker Arms
CAMSHAFT OIL .
. .
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ENGINE OVERHAUL Rocker Arms Camshaft
I
INSPECTION
CAMSHAFT.
(1) Measure the cam height. Standard
Intake 37.39 mm (1.4720
Exhaust 37.47 mm (1.4752
Limit:
Intake 36.69 mm (1.4524 in.)
Exhaust 36.97 mm (1.4655 in.)
NOTE
The camshaft identification mark is stamped on the
opposite end of the camshaft sprocket side.
ROCKER ARM
(1) Check the roller surface. If any dents, damage or seizure
is evident, replace the rocker arm.
(2) Check rotation of the roller. If it does not rotate smoothly
or if looseness is evident, replace the rocker arm.
(3) Check the inside diameter. If damage or seizure is evident,
replace the rocker arm.
LASH ADJUSTER LEAK-DOWN TEST
Caution
1. The lash adjuster is a precision part. Keep it f ree
from dust and other foreign matter.
2. Do not disassemble lash adjuster.
3. When cleaning lash adjuster, use clean diesel fu el
only.
Use of the special tool helps facilitate the air bleeding.
of the rocker arm mounted type lash adjuster.
(3) Remove the special tool and press the plunger. If the
plunger is hard to be pushed in, the lash adjuster is normal.
Ifthe plunger can be pushed in all the way readily, bleed
the lash adjuster again and test again. If the plun ger
is still loose, replace the lash adjuster.
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(1) Immerse the lash adjuster in clean diesel fuel. .
(2)While lightly pushing down inner steel ball using t he special
tool, move the plunger up and down four or five tim es
to bleed air.