Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1367

11B-18
Belt tension side
Tensioner
B
Tensioner
B centre
Installation
bolt centre
MB991668
15_
10 - 20 mm
ENGINE OVERHAUL -
3. Confirm that the tensioner B centre and bolt centre are
Timing
belt B
4. Apply tension on the timing belt by lifting tensioner B
5. Connect the special tool (MB991704) to MUT-II and the
6. Connect the special tool (MB991668) to MUT-II.
7. Rotate the crankshaft clockwise two turns, and align each
8. Select "Belt Tension Measurement" from the MUT-II menu
9. Separate the special tool (MB991668) 10 to 20 mm from
15_
10. Lightly tap the section shown with an arrow with fingers,
Timing Belt
positioned as shown in the illustration.
in the direction of the arrow with a finger, and tension
the tension side until it is "tight". Fix tensioner B in this
state by tightening the bolt.
NOTE
Make sure that the tensioner B shaft does not rotate
when tightening the bolt. If the shaft rotates, the timing
belt becomes too tense.
battery.
timing mark.
screen.
the centre back between the sprockets (shown with an
arrow), and hold so that it is vertical (inclination within
±15_) in respect to the belt.
and measure the belt vibration frequency. If the results
are deviated from the standard value, loosen the bolt,
tension the belt again, and then measure the vibration
frequency again. Repeat this step until the standard value
is attained. Tighten the bolt when the standard value
is attained.
Standard value:
Item
Vibration frequency Hz
Deflection
(Reference value) mm
When When When
check adjusted replaced
52 - 92 76 - 92 76 - 92
5 - 10 5 - 7 5 - 7