My mistake was the harrow, should have never done it. Started slipping about 10 minutes into the drag. Figured i stretched the drive belt so i changed it out to new. Ran better, but then after the same amount of time was back to the slow mo. Changed the belt AGAIN and didn't harrow any more...
just to keep this thread going. I have ordered a rebuild kit. I guess i could have sanded it down, but after 375 hours this mower really doesn't owe me anything. I've only ever changed belts on it. Mow 2 acres, once or twice a week for 11 years. Started getting bad after i dragged a harrow...
before i order this sucker from surplus direct, has anyone just taken the crappy old k46 out and put one of these K57r in without modifying anything? I have a 2011 Husqvarna 20/42LS