I began my first touch control pump refresh with a gasket kit from TM. Upon disassembling the pump I found the drive gear had a very distinct groove cut in the shaft where the o-ring seal rides.... The shaft is not overly rough, just grooved. The correct o-ring, supplied by TM, is too loose given the groove in the shaft.
1st question, If this pump has seen such considerable use/wear as that a rubber o-ring wore a groove over the last 50+ years...what are the possibilities of the rest of the pump being serviceable?
I just recently installed this touch control unit as I previously only had a hand lift. After installing the touch control unit, it did not exhibit any symptoms of being weak, however, I have never had touch control previously (lifted my Woods 42 and Cub 22 with no problem) Given the apparent wear in the pump, I fully expect a rebuild of the touch control block will be in my near future...If I can repair/replace the drive gear.
2nd question, I have a pretty thrifty machine shop in my area, Anyone ever tried to build up one of these and turn it back down?
Mt. Vernon, MO