I just purchase a MF 165 multi-power, 1964 model. It has power steering. It turns good to the right, but has no power when you turn to the left. Does it just need adjusting, if so, where? or does the pump up front need to be rebuilt. This is the first of many questions I have about my new tractor. It also has a MF 235 Loader on it, maybe from the 1970's, the loader will lift and work, but when you let off the hydraulic lever the loader will drop 3 to 4 inches, will rebuilding the cylinders correct this? Thanks in advance.