I have a 72 Challenger with a big block.
When I make a pass, the fan belt comes off. The belt is a "V" belt and drives the water pump and alternator.
I have checked pulley alignment and I can't find anything off. I have tried different width belts. Right now I have a pretty skinny belt on and seems to stay on but it is not right.
I really do not want to go with a serpentine setup.
Any ideas?
Easy fix put a dayco top cog belt on it and that will fix it. I couldn't keep a belt on my hemi and then switched to a dayco and haren't tossed a belt in over 10 years. I use a 15470 belt.
Mike
I had the same problem with our 69 Dart 383 GTS that has a 451 stroker in it.
It threw every standard type V-Belt. I switched to a DAYCO top cog V-Belt and haven't thrown one yet.
The Dayco Top Cog Belt sits lower (farther) into the pulley grooves when installed.
