Mitsubishi 4g63, Руководство по обслуживанию

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TIMING BELT
ENGINE OVERHAUL <4G63-Turbo> 11D-26
20.Check that the wire (inserted in the auto-tensioner
when it was installed) can be moved freely. If the
wire can be pulled freely, the belt tensioner is
adjusted properly. Remove the wire. At that time,
check that the auto-tensioner rod extends by the
specified amount.
Standard value: 3.8
−
4.5 mm
CAUTION
Be sure to check the tightening torque of the
crankshaft bolt anytime the crankshaft has been
turned counterclockwise. If the torque lower than
specification, tighten the bolt to the specified
torque.
21.If the wire cannot be pulled out freely, perform the
steps 14 through 18 again to make the belt
tension proper.
INSPECTION
M1113002000685
TIMING BELT
Check closely the entire timing belt.
Replace it if any of the following conditions is found.
1. Hardened back side rubber.
Back side surface is glossy, lacking in elasticity,
and so hard that no impression is left when
pressed with fingernail.
2. Cracks in back rubber surface.
3. Cracks in canvas.
4. Cracks in tooth roots.
5. Cracks in belt sides.
6. Abnormally worn belt sides;
NOTE: belt sides are normal if they have
“knife-cut” surfaces.
7. Badly worn teeth.
Initial stage: Canvas is worn (canvas fiber is fluffy;
teeth look whitish due to worn-out rubber; canvas
texture is unclear)
Second stage: Canvas is lost and rubber is exposed
(tooth width narrows down)
8. Missing tooth.
AK202829
Extension
amount
AB
AK202794
AK202793
Cracks
Peeling of canvas
Cracks in tooth roots
Cracks
AB
Cracks in sides
AK202795
Rounded edge
Abnormal wear
(Fluffy strand)
AB
AK202796
Missing
Tooth
Canvas lost and
rubber exposed
AB