2004 Lexus SC430 Service & Repair Manual

2003 SPECIFICATIONS INDEX SC 430 AIR CONDITIONING AUTOMATIC SYSTEM Service Specifications AIR CONDITIONING SPECIFICATIONS Torque Specifications AIR CONDITIONING TORQUE SPECIFICATIONS AXLE NUT/HUB NUT FRONT Application Specification Compressor Type 7SBU16 Compressor Belt Tension (1) Compressor Oil Capacity (2) 4.1 ozs. Refrigerant (R-134a) Capacity 19.4-22.9 ozs. System Operating Pressures (3) High Side 199-213 psi (14-15 kg/cm 2 ) Low Side 21-36 psi (1.5-2.5 kg/cm 2 ) (1) Belt tension is maintained automatically. (2) Use Denso/ND-OIL 8 refrigerant. (3) Specification is with ambient temperature at 86-95°F (30-35°C) and engine speed at 2000 RPM. Application Ft. Lbs. (N.m) A/C Compressor-To-Engine Block 36 (49) Compressor Clutch Center Bolt 13 (18) Instrument Panel & Braces 15 (20) Steering Column Support Nuts 19 (26) Steering Column Pinch Bolts 26 (35) Steering Wheel Nut 37 (50) INCH Lbs. (N.m) Air Bag Module Torx Screw 78 (8.8) Compressor Discharge Tube 89 (10) Compressor Suction Tube 89 (10) Condenser Fittings 89 (10) Expansion Valve-To-Suction Tube 89 (10) Modulator (Receiver-Drier) Cap 109 (12) 2003 Lexus SC 430 2003 SPECIFICATIONS INDEX SC 430 2003 Lexus SC 430 2003 SPECIFICATIONS INDEX SC 430 Wednesday, July 29, 2015 2:31:51 PM Page 1 © 2011 Mitchell Repair Information Company, LLC. Wednesday, July 29, 2015 2:31:55 PM Page 1 © 2011 Mitchell Repair Information Company, LLC.

147 Ft.lbs (199 N.m) (Axle Hub Lock Nut) REAR 215 Ft.lbs (290 N.m) (Axle Shaft Lock Nut) BATTERY Service Specifications Information not available from manufacturer. BRAKES BLEEDING SEQUENCE 1. If master cylinder is rebuilt or reservoir is empty, bleed master cylinder first. Bleed wheels in sequence. Start on wheel with longest hydraulic line, and work toward wheel with shortest hydraulic line. 2. Raise and support vehicle. Ensure brake fluid reservoir is at least half full during bleeding procedure. Connect one end of transparent vinyl tube to bleed screw. Submerge other end of tube in a container half filled with clean brake fluid. 3. Have an assistant depress brake pedal several times and hold in depressed position. Loosen bleeder screw, and drain fluid into container. Tighten bleeder screw. 4. Refill brake fluid reservoir as necessary. Repeat step 3 until air is no longer discharged. Ensure bleeder screw is tightened to specification. See TORQUE SPECIFICATIONS . Ensure fluid leakage is not present. Add fluid to reservoir. Repeat procedure for remaining wheels. DISC BRAKES Service Specifications DISC BRAKE SPECIFICATIONS CAUTION: DO NOT allow reservoir to run dry during brake bleeding procedure. Use only clean brake fluid. Ensure no dirt or other foreign matter contaminates brake fluid. DO NOT mix different brands of brake fluid, as they may not be compatible. DO NOT spill brake fluid on vehicle, as it may damage paint. If brake fluid contacts paint, immediately wash with water. NOTE: Ensure brake pedal remains depressed until bleeder screw is tightened. Application In. (mm) Brake Pad Thickness 2003 Lexus SC 430 2003 SPECIFICATIONS INDEX SC 430 Wednesday, July 29, 2015 2:31:51 PM Page 2 © 2011 Mitchell Repair Information Company, LLC.

Torque Specifications DISC BRAKE TORQUE SPECIFICATIONS Front Standard .433 (11) Minimum .039 (1.0) Rear Standard .413 (10.5) Minimum .039 (1.0) Front Disc Standard Thickness 1.260 (32) Minimum Thickness 1.181 (30) Disc Runout (1) .002 (.05) Rear Disc Standard Thickness .472 (12) Minimum Thickness .413 (10.5) Disc Runout (1) .002 (.05) Rear Disc Parking Brake Drum (2) Brake Shoe-To-Lever Clearance Less Than .0138 (.35) Drum Diameter 7.48 (190) Maximum Diameter 7.52 (191) Parking Brake Shoe Lining Thickness (3) Standard Thickness .098 (2.5) Minimum Thickness .039 (1.0) (1) Measured .39 in. (10 mm) from outer edge of rotor. (2) This is the drum for the parking brake on the inside of the rear disc. (3) This is brake lining for the parking brake on the inside of the rear disc. Application Ft. Lbs. (N.m) Accumulator To Brake Booster Pump 36 (54) Brake Actuator Tube No. 1 11 (15) Brake Booster Clevis Lock Nut 19 (26) Brake Union Bolt 22 (30) Disc Brake Front Caliper Installation Bolts 25 (34) Flexible Hose-To-Brake Caliper 22 (30) Front Brake Caliper Mounting 87 (118) Front Brake Caliper-To-Front Brake Caliper Mounting 25 (34) Master Cylinder Union Bolts 23 (32) Push Rod Lock Nut 19 (26) Wheel Lug Nuts 76 (103) Wheel Ornament Bolts 15 (20) INCH Lbs. (N.m) Bleeder Screw 97 (11) 2003 Lexus SC 430 2003 SPECIFICATIONS INDEX SC 430 Wednesday, July 29, 2015 2:31:51 PM Page 3 © 2011 Mitchell Repair Information Company, LLC.

CHARGING SYSTEM GENERATOR Service Specifications GENERATOR SPECIFICATIONS GENERATOR OUTPUT SPECIFICATIONS (1) Torque Specifications GENERATOR TORQUE SPECIFICATIONS DRIVE BELTS Brake Actuator Bracket No. 1 75 (8.5) Brake Actuator Bracket No. 3 69 (7.8) Brake Booster Pump Bracket No. 1 69 (7.8) Brake Booster Pump Bracket No. 2 69 (7.8) Brake Booster Pump Bracket No. 3 106 (12) Brake Booster Pump Bracket Bolt 106 (12) Brake Control Wire Master Cylinder Side 15 (1.7) Booster Pump Side 26 (2.9) Brake Lines To Body 43 (4.9) Front Brake Line To Flexible Hose 133 (15) Brake Lines To Master Cylinder 133 (15) Master Cylinder Assembly Nuts 133 (15) Master Cylinder Reservoir Sub-Assembly 15 (2) Application Specification Rotor Coil resistance @ 68°F (20°C) 2.1-2.5 Ohms Slip Ring Diameter Standard .559-0.567 in. (14.2-14.4 mm) Minimum .504 in. (12.8 mm) Brush Exposed Length Standard .374-.453 in. (9.5-11.5 mm) Minimum .059 in. (1.5 mm) Application Amps Volts SC430 10 Or Less 13.2-14.8 (1) Measured at 77°F (25°C) and 2000 RPM. Application Ft. Lbs. (N.m) Generator Mounting Bolt/Nut 29 (39) Generator Pulley-To-Rotor Nut 81 (111) Power Steering Pump Pulley 32 (43) 2003 Lexus SC 430 2003 SPECIFICATIONS INDEX SC 430 Wednesday, July 29, 2015 2:31:51 PM Page 4 © 2011 Mitchell Repair Information Company, LLC.

ADJUSTMENT Specifications & Procedures Automatic belt tension is used to provide proper tension on serpentine drive belt. No adjustment is necessary. DRIVE BELT ROUTING Routing Illustrations For drive belt routing, see Fig. 1 . Fig. 1: Serpentine Belt Routing & Checking Drive Belt Tension Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 2003 Lexus SC 430 2003 SPECIFICATIONS INDEX SC 430 Wednesday, July 29, 2015 2:31:51 PM Page 5 © 2011 Mitchell Repair Information Company, LLC.

2004 Lexus SC430 Service & Repair Manual

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