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Home >> Subaru >> 2009 >> Impreza WRX STi >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Power Steering System) >> Tilt Steering Column >> Inspection >> Basic Inspection

Basic Inspection

WARNING: This page is about a different variant/trim than selected.

Measure the overall length of steering column. If not within specification, replace it.

Standard: Overall length L 

Tilt column 833.6 +1.3 -0.3  mm (32.82 +0.051 -0.012  in) 

Tilt and telescopic column (measure while minimized) 818.6 +1.5 -1.5  mm (32.23 +0.059 -0.059  in) 

Fig 1: Identifying Overall Length Of Steering Column
G05343513Courtesy of SUBARU OF AMERICA, INC.


  1. Clean all the disassembled parts, and check for wear, damage or any other faults, then repair or replace as necessary.
  2. When disassembling, check the inside of gearbox for water. If any water is found, carefully check the boot for damage, input shaft dust seal, adjusting screw and boot clips for poor sealing. If faulty, replace with new parts.
INSPECTION PROCEDURE CHART

No. Parts Inspection Corrective action
1 Input shaft
  1. Bent input shaft
  2. Damage on serration
If the bend or damage is excessive, replace the entire gearbox.
2 Dust seal
  1. Crack or damage
  2. Wear
If the outer wall slips, the lip is worn out or damage is found, replace it with a new part.
3 Rack and pinion Poor mating of rack with pinion
  1. Adjust the backlash properly.

    By measuring the turning torque of the gearbox and sliding resistance of rack, check if the rack and pinion engage uniformly and smoothly with each other. (Refer to SERVICE LIMIT  "Service limit".)

  2. Pull out the entire rack to allow viewing of the teeth, and check for damage.

Even if abnormality is found in either (1) or (2), replace the entire gearbox.
4 Gearbox unit
  1. Bending of the rack shaft
  2. Bending of the cylinder portion
  3. Crack or damage on the cast iron portion
Replace the gearbox with a new part.
(4) Wear or damage on rack bushing If the free play of rack shaft in radial direction is out of the specified range, replace the gearbox with new part. (Refer to SERVICE LIMIT  "Service limit".)
(5) Wear on input shaft bearing If the free play of input shaft in radial and axial direction is out of the specified range, replace the gearbox with a new part. (Refer to SERVICE LIMIT "Service limit".)
5 Boot Crack, damage or deterioration Replace.
6 Tie-rod (1) Looseness of ball joint (2) Bend of tie-rod Replace.
7 Tie-rod end Damage or deterioration of dust seal Replace.
8 Adjusting screw spring Deterioration Replace.
9 Boot clip Deterioration Replace.
10 Sleeve Damage Replace.
11 Pipe
  1. Damage to flared surface
  2. Damage to flare nut
  3. Damage to pipe
Replace.