I am thinking that you sheared the governor off. If you messed the auxilary pump, it drives off of the governor. Is your car a 2nd gear start? Or does it shift out of 1st? just not into 3 or 4? Not much to do but drive it how it is or tow it. If it is the governor you can take the aux pump off an remove the gears then put a new governor in. You can do all this in the car.