I have a 87 F-150 with a 300 i6 i put a new belt and new alternator on it. Well raised the hood today and found this. The belt had got into the fan clutch i check all the pulleys found little play in the belt tencher and about 1/2 of play side to side and front to back on the power steering pump pulley? My question is would that much play in the power steering pump pulley cause the belt to come apart and wrap around the fan clutch? There are some picks. Any help would be Greatly appreciated!

 

Just a thought but maybe the pulley on the alternator might be wrong. Put another belt on there and see if anything looks out of kilter. Turn it over by hand and see if the pulleys are staying straight.

 

Mines better.

 

Sean what caused yours?

 

Looks like age caused his. And a ****load of luck that it didn't fail completely. Actually... is that picture a joke? Or is that really how your belt ran?

 

I ran it like that, it threw again and I put it back on. Now I have a new belt. Changing the power steering pump kept it from throwing as much but still did some. I think a new tensioner will fix it the rest but I haven't done that yet to make sure.

 

I had that I put on a new tensioner and I'm all good again
Hasn't come off since which has been about 3 months

 

And a new tensioner will prolly fix a belt squeak if you have one

 

Well I'm going to replace my power steering pump and belt tensioner and well see what happens!

 

Sweet! Let us know what happens