Alternator

BELT DEFLECTION [1]
New Belt with A/C 4.5 - 7.0 mm (0.18 - 0.28 in)
New Belt w/o A/C 8.5 - 11.0 mm (0.33 - 0.43 in)
Used Belt 10.0 - 12.0 mm (0.39 - 0.47 in)

BELT TENSION, WITH A/C [2]
New Belt 950 - 1150 N (209 - 253 lbs)
Used Belt 450 - 600 N (99 - 132 lbs)

BELT TENSION, WITHOUT A/C [2]
New Belt 450 - 600 N (99 - 132 lbs)
Used Belt 350 - 450 N (66 - 99 lbs)


[1] As measured between pulleys with 22 lbs (10 Kg) of force. A used belt is defined as having been continuously run for five minutes.
[2] Using tension gauge.