Section 11-02: Steering System, Power
1994 Mustang Workshop Manual
ADJUSTMENTS

Rack Yoke Plug Clearance

SPECIAL SERVICE TOOL(S) REQUIRED
Description Tool Number
Bench Mounted Holding Fixture T57L-500-B
Pinion Shaft Torque Adapter T74P-3504-R
Pinion Housing Yoke Locknut Wrench T78P-3504-H

 

Steering Gear Removed

NOTE: The rack yoke clearance adjustment is not a normal service adjustment. It is only required when the power steering gear input shaft and control (3D517) assembly is removed.

  1. Clean exterior of the steering gear (3504) thoroughly.
  1. Install two long bolts and washers through the bushings, and attach to the Bench Mounted Holding Fixture T57L-500-B.



  1. Do not remove the external pressure lines, unless they are leaking or damaged. If these lines are removed, install new seals. If lines are damaged, they must be replaced with new lines.
  1. Drain the power steering fluid by rotating the input shaft lock-to-lock twice using Pinion Shaft Torque Adapter T74P-3504-R. Cover ports on valve housing with shop cloth while draining steering gear to avoid possible oil spray.
  1. Insert a lb-in torque wrench with maximum capacity of 3.39-6.77 Nm (30-60 lb-in) into the Pinion Shaft Torque Adapter T74P-3504-R. Position the adapter and wrench on the input shaft splines.
  1. Loosen the yoke plug locknut with Pinion Housing Yoke Locknut Wrench T78P-3504-H.



  1. Loosen yoke plug with a 3/4-inch socket wrench.
  1. With the rack at the center of travel, tighten the yoke plug to 5-5.6 Nm (45-50 lb-in). Clean the threads of the yoke plug prior to tightening to prevent a false reading.



  1. Back-off the yoke plug approximately one-eighth turn (44 degrees minimum to 54 degrees maximum) until the torque required to initiate and sustain rotation of the input shaft is 0.79-2.03 Nm (7-18 lb-in) for base power steering or 0.79-2.71 Nm (7-24 lb-in) for handling package.

     CAUTION: Do not allow the yoke plug to move while tightening or the preload will be affected. Check input shaft torque (Step 9) after tightening locknut.

  1. Place Pinion Housing Yoke Locknut Wrench T78P-3504-H on the yoke plug locknut. While holding the yoke plug, tighten the locknut to 60-89 Nm (44-66 lb-ft).
  1. If the external transfer lines were removed, they must be replaced with new service line. Remove the plastic seals from the housing ports prior to installation of new lines.