Checking Used Drive Belts
WARNING: The ignition key should always be pulled off during the measurement.
Use belt tension measuring instrument (Special Tool 9574) to check tension.
Retensioning the belt is only required if the belt tension displayed at the measuring instrument is less than 15 scale increments when the engine is cold and less than 20 scale increments when the engine is hot.
Tension:
Cold engine: 15 to 23 scale increments
Engine at operating
temperature: 20 to 28 scale increments