Problems with serpintine belt/pullys

[sxystev0]

1991 Mustang GT w/ 38,000 miles. About a week ago my belt started falling off. I watched it for a while making observations under the hood (this happened more then once and finally the belt broke along one of the cruves). I thought there was something wrong with the tension pully. I replaced the unit yesterday. And last night the belt came off again and was cut along one of the cruves again. There doesnt seem to be any obvious pully alignment problems. Any one ever have a similar problem?
Thanks for your feedback.
-Steve

 

[sxystev0]

No help?

 

[Michael Yount]

You're looking at what I'd look at too - either the tensioner, the belt itself, or a misalignment that's working the belt over.

 

[04sleeper]

(this happened more then once and finally the belt broke along one of the cruves). -Steve

What exactly do you mean???? Wich Curve???

 

[Mustang5L5]

With the engine running, stand on the side of the car and look at the belt from the side on. See if you see anything wobble.

Take the belt off and physically move the pulleys. Do any move? The PS pulley will move in and out about 1/4" so that's normal

 

[sxystev0]

i ment the cruves in the belt. its only shreads one of those. I thought maybe the belt slide off slowly and got sliced that way

 

[HISSIN50]

along the lines of what Mike said: are any pullies seized up?

 

[sxystev0]

should all the pulley's be perfectly aligned? im gunna look at it again tomorrow. The belt usually comes off right after i make a turn which makes me think its the power steering....

 

[Michael Yount]

"The belt usually comes off right after i make a turn which makes me think its the power steering...."

That would be a clue. Yes, all the pulleys should be aligned - the belt should run between them perfectly smooth and aligned.

 

[Look Its Aaron]

i ment the cruves in the belt.

Do you mean to say the grooves in the belt?


Your belt is walkin foward from somewhere. make sure all the pully's are properly tightned.