TENSILE (CORD) FAILURE
Inspect for
• Belt crimped
• Foreign body in drive
• Excessive Tension
• Moisture or antifreeze getting on belt and invading to the cord.

TIMING BELT TEETH SHEARED
Inspect for
• Seized drive components
• Improper tension
• Misalignment

NOISY TIMING BELT
Inspect for
• Timing belt cover or seal damage or improper installation
• Water, gasoline, or oil line leaks
• Rubber deposits from wobbling belts or misalignment

WORN LANDS BETWEEN
TIMING BELT TEETH
Inspect for
• Belt crimped
• Foreign body in drive
• Excessive tension
• Moisture or antifreeze getting on belt and invading to the cord.

WORN AND CRACKED
TIMING BELT BACK
Inspect for
• High internal engine temperatures
• Extremely low ambient temperature
• Nicked or worn pulley(s)
• Excessive tension
• Excessive mileage

TIMING BELT EDGE WEAR
Inspect for
• Damage to pulley(s) flange
• Improper component alignment
• Nicked or worn pulley(s)
• Foreign body in drive system

CONTAMINATION
Inspect for
• Timing belt cover or seal damage or improper installation
• Water, gasoline or oil line leaks
• Rubber deposits from wobbling belts or misalignment

WORN TIMING BELT TEETH
Inspect for
• Worn sprocket(s)
• Improper tension