Sweptline.ORG

Hey Guys,

When I gun the gas pedal a Chirp/squeal comes from the fan belt. I don't want to ruin my alternator by over tightening the belt but could a loose belt cause the noise? It's just a quick chirp when I punch it. Goes away real fast.

Thanks one and all,
Jimharold

P.S. 1968 D100, 318 w/727 auto trans. Belt a few years old but not many miles.

Yes it can. Do you have the correct belt, and by that I don't mean just length but width too.

Bucky

The belt should be tightened so there is approximately 3/8" of belt deflection at the mid-point between pulleys.

and make sure that the pulleys are lined up.

Got It. Belt stretch over time. All nice and quiet now. Thanks for the hints they help folks remember some of the basics of owning older vehicles.

Jimharold.