I have 1979 955L 13x1963 loader that seems to be losing power. I'm working on a hill pushing down and backing back up with empty bucket. It is real slow backing up the hill. Hyd fulid is good, dosen't seem like the clutches are slipping and the only real problem it seems to have is oil leaking around the turbo compressor side. I have noticed that I have to run it at about 1/2 to full throttle to get it to turn. Anyone have any ideas what might be the problem? Thanks
First thing I'd try is change the fuel filter.... just a guess... could be many things.
Air filter too, can really effect power.