Supra L6-3.0L DOHC (7M-GE) (1990)
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material on the pulley teeth.
Inspect idler pulley
Check that the idler pulley turns smoothly. If necessary, replace the idler pulley.
Inspect tension spring
Check the free length of the spring.
Free length: 69 mm (2.72 in)
If not as specified, replace the spring.