{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"BAT","section_name":"Brakes, ABS & TRAC Systems","page":25,"pages_in_section":167,"title":"Front Brake Components Inspection and Repair","section_header":"Brake System — Front Brake (2JZ–GTE)","ocr_text":"BR–25\nBRAKE SYSTEM – FRONT BRAKE (2JZ–GTE)\n\nFRONT BRAKE COMPONENTS INSPECTION AND REPAIR\n\n1. MEASURE PAD LINING THICKNESS\nUsing a ruler, measure the pad lining thickness.\nStandard thickness:\n12.0 mm (0.472 in.)\nMinimum thickness:\n1.0 mm (0.039 in.)\nReplace the pads if the thickness is less than the minimum (the 1.0 mm slit is no longer visible) or if it shows signs of uneven wear.\n\n2. MEASURE DISC THICKNESS\nUsing a micrometer, measure the disc thickness.\nStandard thickness:\n30.0 mm (1.181 in.)\nMinimum thickness:\n28.0 mm (1.102 in.)\nReplace the disc if the thickness of the disc is at the minimum thickness or less. Replace the disc or grind it on a lathe if it is badly scored or worn unevenly.\n\n3. MEASURE DISC RUNOUT\nUsing a dial indicator, measure disc runout 10 mm (0.39 in.) from the outer edge of the disc.\nMaximum disc runout:\n0.05 mm (0.0020 in.)\nIf the disc's runout is at the maximum value or greater, check the bearing play in the axial direction and check the axle hub runout (See page SA–16). If the bearing play and axle hub runout are not abnormal, adjust the disc runout.\n\n4. IF NECESSARY, ADJUST DISC RUNOUT\n(a) Remove the hub nuts and the disc. Reinstall the disc 1/5 of a turn round from its original position on the hub. Install and torque the hub nuts.\nTorque: 103 N·m (1,050 kgf·cm, 76 ft·lbf)\nRemeasure the disc runout. Make a note of the runout and the disc's position on the hub.\n(b) Repeat (a) until the disc has been installed on the 3 remaining hub positions.\n(c) If the minimum runout recorded in (a) and (b) is less than 0.05 mm (0.0020 in.), install the disc in that position.\n(d) If the minimum runout recorded in (a) and (b) is greater than 0.05 mm (0.0020 in.), replace the disc and repeat step 3.\nHINT: Install a disc marked with \"R\" on the right wheel, and a disc marked with \"L\" on the left wheel.\n\nLeft Wheel     Right Wheel\nL                    R\n\nR08874\nR07137\nR07138\nR05998\nR10605","image":"https://tsrm.sasquatchvc.com/images/mk4/BAT/BAT_025.png","url":"https://tsrm.sasquatchvc.com/mk4/tsrm/BAT/25","prev":{"page":24,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/BAT/24","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/24"},"next":{"page":26,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/BAT/26","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/26"},"section_url":"https://tsrm.sasquatchvc.com/mk4/tsrm/BAT","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/1","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/2","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/3","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/4","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/5","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/6","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/7","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/8","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/9","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/10","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/11","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/12","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/13","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/14","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/15","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/16","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/17","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/18","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/19","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/20","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/21","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/22","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/23","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/24","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/25","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/26","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/27","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/28","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/29","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/30","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/31","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/32","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/33","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/34","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/35","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/36","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/37","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/38","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/39","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/40","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/41","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/42","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/43","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/44","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/45","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/46","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/47","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/48","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/49","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/50","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/51","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/52","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/53","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/54","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/55","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/56","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/57","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/58","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/59","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/60","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/61","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/62","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/63","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/64","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/65","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/66","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/67","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/68","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/69","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/70","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/71","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/72","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/73","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/74","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/75","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/76","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/77","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/BAT/78","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/B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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}