TSRM/MK4 Supra/Repair Manual
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PS/Steering — Service Specifications Service Data, page 51

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Service Specifications Service Data — MK4 Supra Steering, page 51
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SR–51
STEERING – SERVICE SPECIFICATIONS

SERVICE SPECIFICATIONS
SERVICE DATA

Steering wheel freeplay    Maximum    30 mm (1.18 in.)

STEERING COLUMN
  Pawl stopper    Mark
    1 or A    12.68–12.74 mm (0.4992–0.5016 in.)
    2 or B    12.61–12.67 mm (0.4965–0.4988 in.)
    3 or C    12.54–12.60 mm (0.4937–0.4961 in.)
    4 or D    12.47–12.53 mm (0.4909–0.4933 in.)
    5 or E    12.40–12.46 mm (0.4882–0.4906 in.)
    6 or F    12.33–12.39 mm (0.4854–0.4878 in.)
    7 or G    12.26–12.32 mm (0.4827–0.4850 in.)

PS ON–VEHICLE INSPECTION
  Maximum rise of oil level    Below 5 mm (0.20 in.)
  Oil pressure at idle speed with valve closed    Minimum    7,845 kPa (80 kgf/cm2, 1,140 psi)
  Steering effort at idle speed    Maximum    0.4 N·m (3.6 kgf·cm, 3.1 in.·lbf)

PS VANE PUMP
  Rotor shaft bushing oil clearance    STD    0.03–0.05 mm (0.0012–0.0020 in.)
  Rotor shaft bushing oil clearance    Maximum    0.07 mm (0.0028 in.)
  Vane plate to rotor groove clearance    Maximum    0.03 mm (0.0012 in.)
  Vane plate height    Minimum    8.6 mm (0.339 in.)
  Vane plate thickness    Minimum    1.40 mm (0.0551 in.)
  Vane plate length    Minimum    14.99 mm (0.5902 in.)
  Vane plate length    Rotor and cam ring mark
    NONE    14.999–15.001 mm (0.59051–0.59059 in.)
    1    14.997–14.999 mm (0.59043–0.59051 in.)
    2    14.995–14.997 mm (0.59035–0.59043 in.)
    3    14.993–14.995 mm (0.59027–0.59035 in.)
    4    14.991–14.993 mm (0.59020–0.59027 in.)
  Flow control spring length    Minimum    33 mm (1.30 in.)
  Pump rotating torque    0.2 N·m (2.5 kgf·cm, 2.2 in.·lbf) or less

PS GEAR HOUSING
  Steering rack runout    Maximum    0.30 mm (0.0118 in.)
  Total preload    1.0–1.9 N·m (10–20 kgf·cm, 8.7–17.4 in.·lbf)
  Solenoid valve resistance    6–11 Ω