Still working on the hydraulic system of my 1961 MF-35D. Have honed the cylinder, re-ringed the piston, replaced the pressure relief valve, cleaned the sump, filled with proper GL-1 90W, and gone through all of the lift cover adjustments (several times).Still not satisfied with performance so removed lift cover again and removed the pump. Upon disassembly I discovered that all pistons/chambers were scored, 2 rather badly, and one piston had no ring on it at all. Have ordered parts for pump and will reassemble it when the parts arrive. Though the pump seems simple enough, I would appreciate any and all advice regarding overhaul as I have not worked on one of these before. One last thing: After removing the pump, I found a caged needle roller bearing in the sump where the pump mounted. It appears that this bearing is for the pump drive output shaft and that it fell off when I removed the pump. Does this bearing simply slip over the pump drive shaft prior to installation of the pump? Thanks, in advance. Dean
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