Drive Belt: Testing and Inspection
Checking Drive BeltsWARNING: Be sure to perform when engine is stopped.
1. Inspect belts for cracks, fraying, wear and oil. If necessary, replace.
2. Inspect drive belt deflection or tension at a point on belt midway between pulleys.
1: Power steering oil pump
2: Alternator
3: Idler pulley
4: Crankshaft pulley
5: A/C compressor
^ Inspection should be done only when engine is cold, or over 30 minutes after engine is stopped.
^ Measure the belt tension with belt tension gauge (commercial service tool: BT3373-F or equivalent) (A) at points marked [arrow down] shown in the figure.
^ When measuring the deflection, apply 98 N (10 kg, 22 lb) at the marked [arrow down] point.
^ Adjust if the belt deflection exceeds the limit or if the belt tension is not within specifications.
CAUTION:
^ When checking the belt deflection or the tension immediately after installation, first adjust it to the specified value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to avoid variation in deflection between pulleys.
^ Tighten idler pulley lock nut by hand and measure the deflection or the tension without looseness.
