Problem resolved. It seems the problem was not a worn belt. In the process of trying different sized belts, i lubricated the tensioner cable and cleaned the cobwebs and dust that collected in the tension control mechanism. After several belts were either too short or too long, I reinstalled the...
I have Craftsman 917.388740 self-propelled mower that has lasted more than 20 years with no repairs other than 1 carburetor replacememt, a few blades & oil. It has cast iron cylinder & I don't want to replace it til engine dies. My problem: Original drive belt stretched & no longer had enough...