Diplomat L6-225 3.7L VIN H 1-bbl (1983)
Steering Gear: Testing and Inspection
Fig. 17 Adjusting gear shaft adjusting screw
1. Fill reservoir to level mark.
2. Connect test hoses to hydraulic pump on car with pressure gauge installed between pump and steering gear to register pressures.
3. Start engine and operate at idle to bring steering gear to normal operating temperature.
4. Center the valve until unit is not self-steering. Tap valve body retaining screw heads to move valve body up on steering housing or end plug to
move valve body down.
5. Rotate wormshaft through range of travel to bleed air from system, then refill reservoir.
6. With steering gear on center, tighten sector shaft adjusting screw until backlash is removed from steering arm. If the power train was removed,
tighten adjusting screw an additional 11-4 turns, then tighten locknut.
7. Operate unit through several cycles, aligning piston rack and sector teeth.
8. With gear on center, readjust sector shaft backlash. Loosen adjusting screw until backlash is present, then tighten adjusting screw until backlash is
removed. Tighten adjusting screw an additional 3-8 to 1-2 turn and torque locknut to 28 ft. lbs.
9. Recenter valve body.
