Ford Focus Forum, Ford Focus ST Forum - View Single Post - Help with repeat bad belt tensioners.
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Old 09-03-2012, 11:20 PM   #7
amc49
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It may look like it but modern snap back tensioners generally do not have the total adjustment length oldschool adjustable bracketry did, meaning the belt length pretty much needs to be dead on. If right the belt will almost seem too short, where correct length comes in the belt can stretch a good bit through its' life and still be in range. Simply picking a belt to be 'in the range' may well not be good enough. It needs to be at the low end if belt new to guarantee long life. That way tensioner has the full arm swing worth of wear compensation to use up.
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