Mitsubishi Lancer Evolution IV, Workshop Manual

Page: 28 / 391

ENGINE –
Timing Belt
11-24
(2) Cracks on rubber back.
(3) Cracks of canvas.
(4) Cracks on rib root.
(5) Cracks on belt sides.
(6) Abnormal wear of belt sides.
NOTE
The sides are normal if they are sharp as if cut by a
knife.
(7) Abnormal wear on teeth.
Initial stage:
Canvas on load side tooth flank worn (Fluffy canvas
fibers, rubber gone and color changed to white, and
unclear canvas texture)
Final stage:
Canvas on load side tooth flank worn down and rubber
exposed (tooth width reduced)
(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 – 196 N {10 – 20 kgf}
and measure its protrusion. If it is out of specification,
replace the auto tensioner.
Standard value: 1 mm or less
Cracks
Cracks
on sides
Cracks
Cracks on rib root
Peeling of
canvas
Tooth missing
12 mm
6EN1033
98 to 196 N {10 to 20 kgf}
Movement