MITSUBISHI SPYDER 1990 Service Repair Manual

ENGINE OVERHAUL Timing Belt
Semi-circularCylinder head
SEALANT APPLICATION ON ROCKER COVER
Apply the specified sealant to
areas in the,
illustration.
Specified sealant: ATD Part No. 8660
in.)
SPACER INSTALLATION
(1) Install the spacer with the chamfered end toward
the oil seal.

ENGINE OVERHAUL Timing’
COUNTERBALANCE SHAFT
INSTALLATION
BELT “B” INSTALLATION
(1) Align timing marks on the crankshaft sprocket
and
counterbalance shaft sprocket with the marks on the front
case respectively.
(2) Install the timing belt on the crankshaft sprocket
and counterbalance shaft sprocket. There should be no
slack on the tension side.
(3) Make sure that the relationship between, the te nsioner
pulley center and the bolt center is as shown in th e
illustration.
(4) Move the tensioner “B” in the direction of arrow while
lifting with a finger to give a sufficient tension to the tension
side of timing belt. In this condition, tighten bolt to secure
tensioner When the bolt is tightened, use care to
prevent shaft from turning together. If shaft is tu rned
together, belt will be
(5) Check to ensure that timing marks on sprockets and front
case are in alignment.
(6) Press with index finger the center of span on
side of timing belt “B”. The belt must deflect 5-7 mm
in.).
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ENGINE OVERHAUL Belt
Phillips screwdriver
BOLT
O I L S P R O C K E T
(1) a Phillips screwdriver [shank diameter 8 mm
in.) shaft] through the plug hole on the the
cylinder block to block the left counterbalance sha ft.
(2)
the oil pump sprocket. .
(3) Apply a proper amount of engine oil-to the bearing
of the nuts.
(4) Tighten the nuts to the specified‘ torque.
AUTO TENSIONER INSTALLATION
(1) If the auto tensioner rod is in its fully exten ded position,
reset it as follows.
(2) Clamp the auto-tensioner in the vise
jaws.
(3) Push in the rod little by little with the vise the
hole A in the rod is aligned with the hole in the
(4) a wire mm in.) diameter] into the
(5) Unclamp the auto tensioner from the vise.
.
,
the auto tensioner to front case and tighten.
the specified torque.
Caution
Leave the wire installed the
,
. .
,
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ENGINE OVERHAUL
TENSIONER PULLEY INSTALLATION
(1) Install the tensioner pulley in such direction that its two
small holes are arranged vertically.
Cylinder head
top
marks
TIMING BELT INSTALLATION
(1) Turn the two sprockets so that their dowel pins are located
on top. Then, align the timing marks facing each ot her
with the top surface of the cylinder head. When you let
go of the- exhaust camshaft
it will rotate one
tooth counterclockwise. This should be taken into a ccount
when installing the timing belt on the sprockets.
NOTE
The same camshaft sprocket is used, for the intake and
exhaust camshafts and is provided with two timing m arks.
When the sprocket is mounted on the exhaust camshaf t,
usethe timing mark on the right with the dowel ‘pin hole
on top. For the intake camshaft sprocket, use the o ne
on the left with the dowel pin hole on top.
(2) Align the crankshaft sprocket timing marks.
(3) Align the oil pump sprocket timing marks (Engine with counterbalance
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ENGINE OVERHAUL Belt
Phillips screwdriver
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(4) a Phillips screwdriver [shank diameter 8 mm
in.)] through the hole.
If it can be inserted as deep as 60 mm (2.4 or more;
the timing ‘marks are correctly aligned. If the inserted
depth is only
mm in.), turn the oil’ pump
sprocket one turn and
marks. Then check
to ensure that the screwdriver can be inserted 60 m m
(2.4 in.) or more. Keep the screwdriver inserted the
installation of the timing belt is finished.
NOTE
Step (4) is performed to ensure that the oil pump sprocket
is correctly positioned with reference to the counterbal-
ance shafts.
(5) Thread the timing belt over the intake side cam shaft
sprocket and fix it at indicated position by a bulldog clip.
(6) Thread the timing belt over the exhaust side sp rocket,
aligning the timing marks with the cylinder head top surface
using two wrenches.
(7) Fix the belt at indicated, position
a bulldog clip.

ENGINE OVERHAUL Timing
(8) Thread the timing belt over the idler pulley, the oil pump
sprocket, the crankshaft sprocket and the tensioner pulley
in the order shown.
(9) Remove the two clips.
(lO)Lift up the tensioner pulley in the direction o f arrow and
tighten the center bolt.
to see that all timing marks are lined up.
the screwdriver inserted in step (4) and fit the
plug. (Engine with counterbalance shafts)
the crankshaft a quarter counterclockwise turn. Th en,
turn it clockwise until the timing marks are lined up again.
the special tools, Socket Wrench and Torque.
Wrench, on the tensioner pulley, and loosen the ten sioner
pulley center bolt.
NOTE
If the special tool is not available, use a commercially
available torque wrench that is capable of measurin g
Nm
to 3.6 Nm (2.60 with the torque wrench.
the tensioner pulley with the special tool and
torque wrench, tighten the center bolt to specifica tion.,
giving two clockwise turns to the crankshaft, let
it alone for approx. 15 minutes. Then, make sure
the auto tensioner setting wire moves freely.
NOTE
If the wire does not move freely, repeat step (13) above’
until it moves freely.
the auto tensioner setting wire.
the distance “A” (between the tensioner arm
and auto tensioner body).
Standard value: mm in.)
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ENGINE OVERHAUL Timing
Cracks’
Rounded edgeI
Abnormal wear(Fluffy strand)
Rubber exposed
Tooth missingand canvas fibe
INSPECTION
TIMING BELT
Replace belt if any of the following conditions exi st.
(1) Hardening of back rubber.
Back side is glossy without resilience and leaves no indent
when pressed with fingernail.
(2) Cracks on rubber back.
(3) Cracks or peeling of canvas.
(4) Cracks on rib root.
(5) Cracks on belt sides.
(6) Abnormal wear of belt sides. The sides are norm al if
they are sharp as if cut by a knife.
(7) Abnormal wear on teeth.
(8) Missing tooth.
AUTO TENSIONER
(1) Check the auto tensioner for possible leaks and replace
as necessary.
(2) Check the rod end for wear or damage and replac e as
necessary.
(3) Measure the rod protrusion. If it is out of specification,
replace the auto tensioner.
Standard value: 12 mm
in.)

98 to 196 (22 to 44 ft.)
ENGINE OVERHAUL Timing
(4) Press the rod with a force of 98 to 196 (22 to 44
ft.) and measure its protrusion.
(5) If the measured value is
mm (0.39 in) or more shorter
than the value obtained in step
replace the
tensioner.
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ENGINE OVERHAUL
FUEL AND CONTROL PARTS
REMOVAL AND INSTALLATION
9 Nm7
Removal steps
1. Air fitting
2. Air fitting gasket
3. Throttle body
4. Throttle body gasket
5. EGR valve
6. EGR valve gasket
7. Injectors and fuel rail
12Nm9
19 Nm14
8.Insulator9. Fuel pressure
10.O-ring11.Insulator
Grommet15.Fuel rail
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ENGINE OVERHAUL Fuel and
INJECTOR
(1) Before installing an injector the rubber O-ring must be
lubricated with a drop of clean engine oil to aid i n
installation.
(2) Install injector top end into fuel rail.
Be careful not to damage the O-ring during installa tion.
FUEL PRESSURE REGULATOR INSTALLATION
(1) Before installing’ regulator the O-ring must be
lubricated with a drop of
engine O-ring to aid in
installation.
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