89 LXi squealing alt.belt

[teverson-sr]

I'm working on a friends 89 Accord,and for some reason the alt/water pump belt keeps on squealing (randomly)no matter how tight it is.It is also getting eaten-black belt residue in the engine compartment.It's a new belt and new (rebuilt)alternator.This happened before and it broke the belt,causing it to overheat.Do these cars have water pump issues,where they "jam"or tighten up?No liquid leaking under the car.

[Dr_Snooz]

Once they start squealing, you have to replace them.