1994 Lexus SC400 Service & Repair Manual

ABBREVIATIONS USED IN THIS MANUAL ABS Anti–Lock Brake System J/B Junction Block A/C Air Conditioner LED Light Emitting Diode ALR Automatic Locking Retractor LH Left–Hand APPROX. Approximation LHD Left–Hand Drive A/T, ATM Automatic Transmission LLC Long Life Coolant (Year Around Coolant) ATF Automatic Transmission Fluid Max. Maximum BTDC Before Top Dead Center Min. Minimum BVSV Bimetal Vacuum Switching Valve MP Multipurpose CALIF. Vehicles Sold in California N Neutral CB Circuit Breaker OD, O/D Overdrive DOHC Double Over Head Cam O/S Oversize DP Dash Pot P & BV Proportioning and Bypass Valve ECT Electronic Controlled Transmission PCV Positive Crankcase Ventilation ECU Electronic Controlled Unit PS Power Steering EFI Electronic Fuel Injection RH Right–Hand EGR Exhaust Gas Recirculation RL Rear Left ELR Emergency Locking Retractor RR Rear Right EPR Evaporator Pressure Regulator RR, Rr Rear ESA Electronic Spark Advance SRS Supplemental Restraint System EVAP Evaporative (Emission Control) SSM Special Service Materials EX Exhaust (manifold, valve) SST Special Service Tools Ex. Except STD Standard FIPG Formed in Place Gasket SW Switch FL Front Left TDC Top Dead Center FL Fusible Link TDCL Total Diagnostic Communication Link FPU Fuel Pressure Up Temp. Temperature FR Front Right TRAC Traction Control System FR, Fr Front TWC Three–Way Catalyst HAC High Altitude Compensation VSV Vacuum Switching Valve IG Ignition VTV Vacuum Transmitting Valve IN Intake (manifold, valve) w/ With INT Intermittent w/o Without ISC Idle Speed Control IN–34 – INTRODUCTION Abbreviations Used in This Manual WhereEverybodyKnowsYourName

STANDARD BOLT TORQUE SPECIFICATIONS HOW TO DETERMINE BOLT STRENGTH – INTRODUCTION Standard Bolt Torque Specifications IN–35 WhereEverybodyKnowsYourName

SPECIFIED TORQUE FOR STANDARD BOLTS Class Diameter Pitch Specified torque Class mm mm Hexagon head bolt Hexagon flange bolt N⋅m kg⋅cm ft⋅lb N⋅m kg⋅cm ft⋅lb 6 1 5 55 48 in.⋅lb 6 60 52 in.⋅lb 8 1.25 12.5 130 9 14 145 10 4T 10 1.25 26 260 19 29 290 21 12 1.25 47 480 35 53 540 39 14 1.5 74 760 55 84 850 61 16 1.5 115 1,150 83 – – – 6 1 6.5 65 56 in.⋅lb 7.5 75 65 in.⋅lb 8 1.25 15.5 160 12 17.5 175 13 5T 10 1.25 32 330 24 36 360 26 5T 12 1.25 59 600 43 65 670 48 14 1.5 91 930 67 100 1,050 76 16 1.5 140 1,400 101 – – – 6 1 8 80 69 in.⋅lb 9 90 78 in.⋅lb 8 1.25 19 195 14 21 210 15 6T 10 1.25 39 400 29 44 440 32 6T 12 1.25 71 730 53 80 810 59 14 1.5 110 1,100 80 125 1,250 90 16 1.5 170 1,750 127 – – – 6 1 10.5 110 8 12 120 9 8 1.25 25 260 19 28 290 21 7T 10 1.25 52 530 38 58 590 43 7T 12 1.25 95 970 70 105 1,050 76 14 1.5 145 1,500 108 165 1,700 123 16 1.5 230 2,300 166 – – – 8 1.25 29 300 22 33 330 24 8T 10 1.25 61 620 45 68 690 50 12 1.25 110 1,100 80 120 1,250 90 8 1.25 34 340 25 37 380 27 9T 10 1.25 70 710 51 78 790 57 12 1.25 125 1,300 94 140 1,450 105 8 1.25 38 390 28 42 430 31 10T 10 1.25 78 800 58 88 890 64 12 1.25 140 1,450 105 155 1,600 116 8 1.25 42 430 31 47 480 35 11T 10 1.25 87 890 64 97 990 72 12 1.25 155 1,600 116 175 1,800 130 IN–36 – INTRODUCTION Standard Bolt Torque Specifications WhereEverybodyKnowsYourName

INTRODUCTION – INTRODUCTION IN–1 WhereEverybodyKnowsYourName

HOW TO USE THIS MANUAL INDEX An INDEX is provided on the first page of each section to guide you to the item to be repaired. To assist you in finding your way through the manual, the Section Title and major heading are given at the top of every page. ALPHABETICAL INDEX An ALPHABETICAL INDEX is also provided at the end of this manual so that you can rapidly find the item and page you are searching for. GENERAL DESCRIPTION At the beginning of each section, a General Descrip- tion (Precautions) is given that pertains to all repair operations contained in that section. Read these precautions before starting any repair task. REPAIR PROCEDURES Most repair operations begin with an overview il- lustration. It identifies the components and shows how the parts fit together. Example: PREPARATION Preparation lists the SST (Special Service Tools), rec- ommended tools, equipment, lubricant and SSM (Special Service Materials) which should be prepared before beginning the operation and explains the pur- pose of each one. TROUBLESHOOTING TROUBLESHOOTING tables are included for each system to help you diagnose the problem and find the cause. The fundamentals of how to proceed with trouble– shooting are described on page IN–15. Be sure to read this before performing troubleshooting. IN–2 – INTRODUCTION How To Use This Manual WhereEverybodyKnowsYourName

1994 Lexus SC400 Service & Repair Manual

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