Last thread for today.. when a belt flips

Flipped a gimler and std belt yesterday.
Not sure why but every time I put it back on, it keeps popping off.
Are they done?
I'm sure alignment is good.

Last pass std flipped on its side but stayed on last 2 passes but thin gimler belt blows off every pass and that the one with the very wide crank pulley.

What is it driving? pics

time for new belts

Tex

Are you sure nothing is flexing[bracket]? Can you repeat it without driving the car looking at the belts? I agree you will need new belts anyways.

Its usually a mis-alignment issue or a flexing issue....I would string it with the belt off and see what it looks like.

Going to double check the alternator spacer. It might be flexing. Not sure.
Vacuum pump definitely not flexing and with the wide crank pulley, it basically self aligns and the belt is almost centered on the pulley.

Thanks... going to string it tomorrow.
Have to order new belts anyway. Vacuum pump belt has to go on 1st.
I do have a spare alternator belt. Always need spares.

Just went through this on my car, I have a post on B-Bodies only I thought my alignment was good until I put a straight edge on it now everything seems good. I went through 4 belts usually once they flip I changed them out