i replaced all my belts on my JRSC GSR with endyn stepper pulley in october. now i break 2 crank to alternator belts in 3 days. something is amiss. anyone have any ideas on what might cause this? the first belt i lost, but the second one i have. seems it just snapped. no wear or rubbing. first belt was a goodyear gatorback, the second, more recent belt was a dayco ... suggestions? i am thinking it might be the alternator pulley. could the alternator be seizing up? i get no noise at all before the belt breaks. could it be a bent alternator pulley bolt? bad tension? bad luck?

 

Once you get a new belt in. start it up and see if there is any excessive in play or movement from the pulley.

 

will try to get new belt on tonight. i gotta say, i have become too old to get underneath my daily driver on a regular basis. ugh

 

if the first one was in there for a long time, it was probably from wear and tear. if another one went in 2 days, i'd assume it had to be an error in installation. make sure, like stated above there's no excess play after you install it