{"model":"mk2","model_name":"MK2 Supra","vehicle":"Toyota Supra A60 (1982–1986, 5M-GE)","document":"Repair Manual","section":"LU","section_name":"Lubrication System","page":2,"pages_in_section":9,"title":"Troubleshooting","section_header":"Lubrication System — Troubleshooting, Oil Pressure Check","ocr_text":"TROUBLESHOOTING\n\nProblem | Possible cause | Remedy | Page\n\nOil leakage | Cylinder head cylinder block or oil pump body damaged or cracked | Replace as necessary | LU-4\n | Oil seal faulty | Replace oil seal |\n | Gasket faulty | Replace gasket |\n\nLow oil pressure | Oil leakage | Replace as necessary |\n | Relief valve faulty | Replace relief valve | LU-4\n | Oil pump faulty | Replace oil pump | LU-4\n | Engine oil poor quality | Replace engine oil | LU-3\n | Crankshaft bearing faulty | Replace bearing |\n | Connecting rod bearing faulty | Replace bearing |\n\nHigh oil pressure | Oil filter clogged | Replace oil filter | LU-3\n | Relief valve faulty | Replace relief valve | LU-4\n\nOIL PRESSURE CHECK\n\nRecommended Viscosity (SAE)\n10W-40    20W-40    20W-50\n10W-30    10W-40    10W-50\n5W-30\n-40  -20   0   20   40   60   80   100\n-40  -20   0   20   40   60   80   100\nAMBIENT TEMPERATURE RANGE BEFORE NEXT OIL CHANGE\nLU0211\n\n[Diagram showing oil pressure gauge installation]\nLU0601\n\n1. CHECK OIL QUALITY\nCheck the oil for signs of deterioration, entry of water, discoloring or thinning.\nIf the quality is poor, change the oil.\nUse API grade SF or SF/CC multigrade, fuel-efficient and recommended viscosity oil.\n\n2. CHECK OIL LEVEL\nThe oil level should be between the L and F marks on the oil level gauge. If low, check for leakage and add oil up to the F mark.\n\n3. REMOVE OIL PRESSURE SWITCH OR SENDER GAUGE\n\n4. INSTALL OIL PRESSURE GAUGE\n\n5. START ENGINE\nStart engine and warm it up to normal operating temperature.\n\n6. MEASURE OIL PRESSURE\nOil pressure:\nAt idle speed More than 0.3 kg/cm²\n           (4.3 psi, 29 kPa)\nAt 3,000 rpm 2.5 — 5.0 kg/cm²\n           (36 — 71 psi, 245 — 490 kPa)\n\nNOTE: Check for oil leakage after reinstalling the oil pressure switch or sender gauge.","image":"https://tsrm.sasquatchvc.com/images/mk2/LU/LU_002.png","url":"https://tsrm.sasquatchvc.com/mk2/tsrm/LU/2","prev":{"page":1,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/LU/1","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/1"},"next":{"page":3,"url":"https://tsrm.sasquatchvc.com/mk2/tsrm/LU/3","api":"https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/3"},"section_url":"https://tsrm.sasquatchvc.com/mk2/tsrm/LU","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/1","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/2","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/3","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/4","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/5","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/6","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/7","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/8","https://tsrm.sasquatchvc.com/api/pages/mk2/tsrm/LU/9"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}