Proper belt tensioning.

[unbusted67]

I recently broke off and alt mount. I think partially because of having it bolted on the way and partially from over tensioning. My engine manual says between 1/2" and 3/8" of deflection when depressed by thumb between the water pump and alt. but that seems to cause a lot of flogging between the alt and the drive shaft. Is a half inch correct?


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[GordMay]

Deflection of 1/4" to ½" per Foot of centreline distance between pulleys.

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