Originally Posted by RyanSterling966
About the same 3-turns lock to lock or so. Confused about the mods to the borgeson box though. Why would it be sloppy? Can you explain that a bit more?
It's complicated but here it goes:
The valve assembly are made up of 4 major components. The input shaft, worm shaft, the sleeve and the torsion bar. There are oil passages (metering lands) between the sleeve and the input shaft that you cannot see.
This is how they are assembled in sequence:
1. The torsion bar is pressed inside the worm shaft.
2. A tiny pin is pressed on to the outer diameter of the worm shaft to locate the sleeve.
3. The sleeve is placed over this pin
4. Input shaft is inserted over the torsion bar and inside the sleeve.
5. After hydraulically centering the valve, the torsion bar is pinned to the input shaft.
As the steering wheel turns the input shaft, and as the input shaft move while the sleeve remaining stationary, oil passages opens up directing hydraulic oil/pressure in either direction causing the piston to move.
As the piston continues to move, it will cause to the worm to move. Since the worm has a pin on it and the sleeve is pinned to it, the sleeve will also move. As the sleeve moves, it will close off the oil passages and the piston will stop moving.
This happens so quickly, you don't notice the lag in this sequence of events. This is why when you turn the steering, it does not simply keeps going! If the sleeve pin ever breaks, the steering will take off one way or the other until it bottoms out and you end up in the ditch or the wall!
Now the torsion bar. The diameter of the torsion bar controls the "feel" of the steering. Thinner the bar, the less effort it take to move the steering and larger the diameter, the harder it is to move.
To your question:
Without hydraulic pressure, you have to move the input shaft until it bottoms out of the hard stop flats and then you will move the steering. The hard stops are there for safety in case of pressure loss. The steering will feel very sloppy because you have to constantly go to the hard stop before the steering moves.
Therefore, you have to make a the worm shaft as one with the input shaft by removing the sleeve and tack welding the input to the worm. You may not want to do this to your expensive steering box. Find used manual box for power steering.
Hope this helps.