1999 MITSUBISHI LANCER EVOLUTION VI Workshop Manual

ENGINE – Timing Belt11-24
(11) Fit the timing belt over the tensioner pulley.
NOTE
When fitting the timing belt over the tensioner pulley,
turn the intake side camshaft sprocket a little
counterclockwise, as this will facilitate the work.
(12)Turn the crankshaft pulley a little in the illustrated direction
to pull up the timing belt at the idler pulley side.
(13)Check to ensure that the timing marks on the crankshaft
sprocket, oil pump sprocket and exhaust camshaft
sprocket are all offset one tooth from the corresponding
timing marks in the counterclockwise direction.
(14)Using the special tool, turn the tensioner pulley in the
illustrated direction to strain the timing belt. Then, secure
the tensioner temporarily by tightening the retaining bolt
lightly.
NOTE
There must be no slack in the timing belt between the
intake and exhaust camshafts.
(15)Turn the crankshaft to align the timing mark with the mark
for No. 1 cylinder top dead center in the compression
stroke.
(16)Set the special tool as shown and screw it in up to the
position where the wire inserted in the auto-tensioner
when installing it can be moved lightly.
Crankshaft
sprocket
MD998767
MD998738

ENGINE – Timing Belt11-25
(17)Loosen the retaining bolt of the tensioner pulley.
Caution
Loosening the retaining bolt can cause the intake
and exhaust camshafts to turn, resulting in slackened
timing belt. Use care that the timing belt does not
come off the sprockets at this time.
(18)Pull up the slack of the timing belt by turning the tensioner
in illustrated direction using the special tool and a torque
wrench (0 – 5 Nm).
(19)From this position, turn back the tensioner until the torque
wrench reading becomes 3.5 Nm, then secure it by
tightening the retaining bolt.
(20)Remove the special tool attached in step (16).
(21)Rotate the crankshaft clockwise 2 turns. Then, leave it
intact 15 minutes.
(22)Check to see that the wire inserted when installing the
auto-tensioner can be pulled out lightly. If it can be pulled
out lightly, the timing belt is being tensioned properly.
If so, remove the wire. In addition, check that the rod
protrusion from the auto-tensioner meets the standard
value, which is also an indication of properly tensioned
timing belt.
Standard value: 3.8 – 4.5 mm
(23)If the wire cannot be removed with a light force, repeat
steps (16) through (21) until the proper belt tensioner
is obtained.
INSPECTION
TIMING BELT
Replace belt if any of the following conditions exist.
(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.
MD998767

ENGINE – Timing Belt11-26
(6) Abnormal wear of belt sides. The sides are normal 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 replace as
necessary.
(3) Measure the rod protrusion. If it is out of specification,
replace the auto tensioner.
Standard value: 12 mm
(4) Press the rod with a force of 98 to 196 N and measure
its protrusion.
(5) If the measured value is 1 mm or more shorter than the
value obtained in step (3), replace the auto tensioner.
12 mm
98 to 196 N
Movement

ENGINE – Fuel and Emission Control Parts11-27
FUEL AND EMISSION CONTROL PARTS
REMOVAL AND INSTALLATION
1
2 3
456
78 9
1011
12
1314
15
16
9 Nm 11 N m
9 Nm 11 N m
18 Nm
Removal steps
1. Throttle body
C2. Throttle body gasket
3. Fuel return pipe
B4. Fuel pressure regulator
5. O-ring
6. Insulator
7. Insulator
A8. Injector9. O-ring
10. Grommet
11. Delivery pipe
12. Vacuum hose and vacuum pipe
13. Vacuum tank
14. Vacuum tank bracket
15. Solenoid valve
16. Solenoid valve bracket

ENGINE – Fuel and Emission Control Parts11-28
INSTALLATION SERVICE POINTS
AINJECTORS INSTALLATION
(1) Before installing an injector, the rubber O-ring must be
lubricated with a drop of clean engine oil to aid in
installation.
(2) Install injector top end. Be careful not to damage O-ring
during installation.
BFUEL PRESSURE REGULATOR INSTALLATION
(1) Apply a small amount of new engine oil to the O-ring.
Insert the fuel pressure regulator into the delivery pipe
being careful not to damage the O-ring.
Caution
Be sure not to let engine oil get into the delivery
pipe.
(2) Check that the fuel pressure regulator turns smoothly.
If it does not turn smoothly, the O-ring may be trapped.
Remove the fuel pressure regulator and check the O-ring
for damage, and then re-insert it into the delivery pipe
and check once again.
CGASKET INSTALLATION
Position the projection as shown in the illustration.
1EN0388
Grommet
O-ring
Projection

ENGINE – Secondary Air System and Intake Manifold11-29
SECONDARY AIR SYSTEM AND INTAKE MANIFOLD
REMOVAL AND INSTALLATION
1 23 4 5
6
7
8 910
11
11 N m
35 Nm 24 Nm
11 N m
19 Nm
30 Nm 35 Nm 24 Nm
49 Nm 21 Nm
13 Nm
21 Nm
35 Nm
Removal steps
1. Exhaust manifold heat protector
2. Vacuum hose and vacuum pipe
B3. Air pipe assembly
4. Air control valve gasket
5. Air control valve assembly
6. Engine hangerA7. Air control valve bracket
8. Intake manifold stay
9. Alternator brace stay
10. Intake manifold
11. Intake manifold gasket

ENGINE – Secondary Air System and Intake Manifold11-30
INSTALLATION SERVICE POINTS
AAIR CONTROL VALVE BRACKET INSTALLATION
(1) Attach the air control valve bracket and the engine hanger
to the intake manifold using bolts and nuts with which
the intake manifold is also installed to the engine.
(2) Tighten the bolts and nuts to the specified torque in the
sequence given in the illustration.
BAIR PIPE ASSEMBLY INSTALLATION
(1) Install the air pipe assembly to the exhaust manifold and
to the air control valve and secure it provisionally by
tightening the fasteners handtight.
(2) Tighten the fasteners to the specified torque in the
sequence given in the illustration.
(3)
(2) (1)
(3)
(2)(1)(4)

ENGINE – Exhaust Manifold11-31
EXHAUST MANIFOLD
REMOVAL AND INSTALLATION
1
2 3 4
5
67 8
9 1011 1213 14
15
16
17 18 19
9 Nm19 Nm41 Nm16 Nm
12 Nm59 Nm
59 Nm
59 Nm
54 Nm14 Nm 49 Nm
41 Nm
10 Nm10 Nm 11 Nm
29 Nm
30 Nm
Head mark 7: 9 Nm
Head mark 10: 13 Nm
Removal steps
1. Engine hanger
2. Turbocharger heat protector
3. Oxygen sensor
4. Exhaust fitting
5. Exhaust fitting gasket
6. Air outlet fitting
C7. Air outlet fitting gasket
8. Oil return pipe
B9. Gasket
B10. Oil return pipe gasket
(Oil pan side)11. Oil return pipe gasket
(Turbocharger side)
12. Turbocharger assembly
13. Turbocharger gasket
14. Oil pipe
15. Water pipe
16. Water pipe
17. Turbocharger
A18. Exhaust manifold
19. Exhaust manifold gasket