Mitsubishi Lancer Evolution IX. Manual - part 338

AC102335AC

Wire or pin

TIMING BELT

ENGINE MECHANICAL

11A-41

(2) Insert a wire or pin into the aligned set hole.

NOTE: When replacing the timing belt ten-
sioner adjuster with new parts, the timing belt
tensioner adjuster is set with a pin.

2. Assemble the timing belt tensioner adjuster to the

engine, then tighten the assembling bolt to the
standard torque.
Do not remove the wire or pin until the tension of
the valve timing belt is adjusted.

Tightening torque: 23

± 3 N⋅m

>>E<< TIMING BELT TENSIONER
PULLEY INSTALLATION

AC102336AB

Timing belt tensioner
pulley hole

Temporarily tighten the timing belt tensioner pulley
as shown.

>>F<< VALVE TIMING BELT
INSTALLATION

AC504874

Crankshaft
camshaft
drive sprocket

Engine oil
pump sprocket

Timing mark

Camshaft sprocket

Timing mark

1. Align the timing marks on the camshaft sprocket,

crankshaft camshaft drive sprocket and engine oil
pump sprocket.

AC211545

Balancer
shaft

60 mm
or more

8 mm

Starter

Plug

TIMING BELT

ENGINE MECHANICAL

11A-42

2. After aligning the timing marks of the engine oil

pump sprocket, remove the cylinder block plug
and insert a Phillips screw driver with a shaft
diameter of 8 mm through the plug hole to check
that the shaft of the screw driver can be inserted
for 60 mm or more. If the screw driver makes
contact with the balancer shaft and can be
inserted for only 20

− 25 mm, turn the engine oil

pump sprocket for one round and align timing
marks again to check that screw driver can be
inserted for 60 mm or more. Do not take the screw
driver out before completing installation of the
valve timing belt.

3. Install the valve timing belt as follows:

AC407000

Inlet side
camshaft sprocket

Exhaust side
camshaft sprocket

Timing belt
tensioner
pulley

Timing belt
idler pulley

Crankshaft
camshaft
drive
sprocket

Engine
oil pump
sprocket

(1) Pass the valve timing belt around the

crankshaft camshaft drive sprocket, the engine
oil pump sprocket and the timing belt idler
pulley in that order.

AC211558AB

Paper
clip

(2) Pass the valve timing belt around the

exhaust-side camshaft sprocket, and hold the
valve timing belt with paper clamps.

AC211559AB

Timing mark

(3) Use two wrenches to align the timing mark on

the rocker cover with that on the camshaft
sprocket. Pass the valve timing belt around
the inlet-side camshaft sprocket.

AC211560 AB

Paper
clip

(4) Hold the valve timing belt with paper clamps.
(5) Pass the valve timing belt around the timing

belt tensioner pulley.

CAUTION

Install the valve timing belt. Then apply reverse
rotation (anti-clockwise rotation) pressure to the
cam shaft sprocket. Re-check to see that each
timing mark is aligned while the tension side of
the belt is tight.

(6) Remove the two paper clamps.

AC102694 AB

MD998767

4. Turn the timing belt tensioner in the direction

shown using special tool tensioner wrench
(MD998767) to apply tension to the valve timing
belt. Then pre-tighten the timing belt tensioner
pulley.

5. Check that the timing marks are aligned.

AC211564AB

Plug

Screw
driver

TIMING BELT

ENGINE MECHANICAL

11A-43

6. Remove the Phillips screw driver inserted in Step

2 above, then assemble the cylinder block plug.

7. Tighten the cylinder block plug to the specified

torque.

Tightening torque: 30

± 3 N⋅m

8. Adjust the valve timing belt tension.

>>G<< VALVE TIMING BELT TENSION
ADJUSTMENT

AC211534AB

MD998738

Timing belt
under cover

1. Set special tool adjusting bolt (MD998738) when

removing the valve timing belt.

CAUTION

Always screw in the special tool by hand. Use of
a spanner or other tools may damage the wire or
pin inserted in the timing belt tensioner adjuster.
2. Gradually screw in the special tool until the wire or

pin inserted in the timing belt tensioner adjuster
lightly moves.

3. Turn the crankshaft 1/4 turn anti-clockwise.
4. Turn the crankshaft in the clockwise direction until

you align each timing mark to set No.1 cylinder to
TDC of its compression stroke.

5. Loosen the timing belt tensioner pulley mounting

bolt.

CAUTION

When tightening the mounting bolts, ensure that
the timing belt tensioner pulley does not rotate
with the bolts. Allowing it to rotate with the bolts
can cause deficient tension of the belt.

AC102695AB

MD998767

6. With special tool tensioner wrench (MD998767)

and torque wrench, apply tension torque 3.5 N

⋅m,

and tighten the timing belt tensioner pulley
mounting bolt to the specified torque.

Tightening torque: 48

± 5 N⋅m

AC102776AD

Wire or pin

7. Remove wire or pin inserted to timing belt

tensioner.

AC211534AB

MD998738

Timing belt
under cover

TIMING BELT

ENGINE MECHANICAL

11A-44

8. Remove special tool adjusting bolt (MD998738),

and install the rubber plug to the timing belt under
cover.

9. Rotate the crankshaft clockwise two turns, and

leave it for about 15 minutes.

AC102776AD

Wire or pin

10.Insert wire or pin removed in Step 7 again, and

ensure that it can be pulled out easily. When wire
or pin can be easily removed, appropriate tension
is applied on timing belt. In this case, remove wire
or pin.

AC102338AB

Timing belt
tensioner
adjuster

If the projection of timing belt tensioner adjuster
rod is within the standard value, appropriate
tension is applied.

Standard value (A): 3.8

− 4.5 mm

11.If wire or pin cannot be easily pulled out, repeat

Step 1 through Step 9 to reach proper valve timing
belt tension.

CAUTION

Always check the tightening torque of the crank
shaft pulley centre bolt when turning the crack
shaft pulley centre bolt anti-clockwise.
Re-tighten if it is loose.

AC407000

Timing mark

Camshaft
sprocket

Crankshaft
camshaft
drive sprocket

Engine
oil pump
sprocket

12.Check again that the timing marks on sprockets

are aligned.

INSPECTION

M1112004400493

TIMING BELT TENSIONER ADJUSTER
CHECK

1. Check for oil leak from seal, and replace it if leak

is detected.

2. Check for wear or damage at the top of the rod.

Replace it, if required.

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