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Power Steering Valve Clearance

  1. Center the steering rack. Measure between seal holder and end of rack. Measurement should be 2.5" (65.5 mm). Grease pinion gear teeth and pinion ball bearing. Using the valve adjusting kit, install all 7 shims.
  2. Install pinion valve assembly to housing. Carefully tighten attaching bolts 1/4 turn at a time until snug. Using a feeler gauge, measure clearance between valve assembly housing and gear housing.
  3. Note the measurement. Disassemble and remove shims as necessary, to allow a maximum .002" (.50) clearance when reassembled. Reassemble valve housing to gear housing. Seal mating surface with RTV No. (1052366).
  4. Center steering rack using marks made during disassembly. See POWER STEERING PUMP (Disassembly)  in OVERHAUL procedure, in this article. Align pinion shaft so that flat side of splines is parallel with steering rack.
  5. Install rack plunger, spring, adjusting lug and lock nut. Tighten adjusting plug to 43 INCH lbs. (5 N.m). Loosen plug. Retighten plug to 43 INCH lbs. (5 N.m). Back off plug 30-35 degrees.
  6. Using an INCH lb. torque wrench and socket, check pinion shaft preload. Preload should be 5-14 INCH lbs. (.6-1.6 N.m). If not within specification, loosen lock nut and reset plug preload.
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