Idler-wheel tensioner- paul-ryan.info Locknut Screw adjuster
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Some cars are fitted with a idler-wheel tensioner, which gives simple and accurate adjustment of the belt tension. Slacken the locknut on the adjuster screw and turn the adjuster until the belt tension is correct. Retighten the locknut and re-check the tension.

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Checking, adjusting and refitting drive belts

Drive belts always stretch a little in use, because of the strains put on them by driving the wa...