I have a 2001 troy bilt model 13ax609g063 with 42" deck. I bought it used from family and have nothing but trouble with the pto belt. You can put a new belt on and mow for 15 to 20 minutes and the belt will be twisted and all eat up. It looks to me like the belt is forced to make to much of a bent between clutch and the deck. Anyone got any ideas?