The drive belt pulley has been grinding against the belt housing for quite some time (long time). I was able to adjust the bracket at the bottom of the housing to keep it from grinding under normal operation but under high torque conditions it grinds and especially during shutdown of the engine. I have been unable to find a spot in the adjustments that works for all operation. Has anyone else dealt with this? I am thinking that there might be something amiss in the engine mounts or something. Any help would be appreciated!