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Check closely the entire timing belt.
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Replace it if any of the following conditions is found.
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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.
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2.Cracks in back rubber surface.
3.Cracks in canvas.
4.Cracks in tooth roots.
5.Cracks in belt sides.
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6.Abnormally worn belt sides.
| note |
belt sides are normal if they have "knife-cut" surfaces.
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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.
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1.Check the auto-tensioner for leaks from the sealed sections.
Replace it if leaky.
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2.Check the rod end for wear and other damage.
Replace the auto-tensioner if the rod is badly worn or damaged.
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3.Measure the extension length of the rod.
If it is not within the standard value range, replace the auto-tensioner.
Standard value: 12 mm
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4.Press the rod with a force of 98 - 196 N and measure the amount of retraction.
If the measurement exceeds the standard value, replace the auto-tensioner.
Standard value: 1 mm maximum
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