🏷️ Basic Information Identification Make: Mini Model: 1275 GT Generation: Classic Mini (ADO20) Codes Internal Model Code: ADO20 (for the Mini platform) Engine Code: 1275 cc (various iterations, e.g., 12H/12H7) 👋 Introduction Market Position Segment: Sporty compact car, performance variant of the classic Mini Competitive Analysis Key Competitors: Other small sporty coupes and hatchbacks of the era, but unique in its rear-wheel-drive, transverse engine layout and lightweight construction. Key Features Design Philosophy: Maximizing interior space and performance within a compact footprint, iconic British motoring experience. Manual Value Proposition: Enables owners and technicians to perform professional-level maintenance and repairs, saving costs and ensuring longevity of a classic vehicle. 📋 Manual Details Coverage Areas Manual Scope: Comprehensive repair and overhaul for Mini 1275 GT (1969-1980) Page Count Estimated Pages: Varies by specific edition, but designed to be exhaustive Manual Type Type: Workshop Service Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine (1275cc), Transmission (4-speed manual), Clutch, Fuel System, Ignition System, Exhaust System Chassis And Suspension: Suspension (hydrolastic/rubber cone variants), Steering, Brakes (front disc, rear drum), Wheels and Tires Electrical: Wiring Diagrams, Lighting, Ignition, Starting System, Charging System, Instrumentation Body: Body Panels, Doors, Windows, Interior Trim, Seats, Body Sealing Cooling System: Radiator, fan, water pump, thermostat, and hoses – diagnosis and replacement. Fuel System: Carburetor types (SU/Stromberg), fuel pump (mechanical), fuel lines, and tank – repair and adjustment. Ignition System: Distributor, coil, spark plugs, high-tension leads, ignition timing procedures. Procedures Included Maintenance: Scheduled Maintenance, Tune-ups, Fluid Checks and Changes, Lubrication Repair And Overhaul: Engine disassembly and assembly, Transmission overhaul, Brake system repair, Suspension component replacement, Electrical system troubleshooting Diagnostics: Troubleshooting guides for common problems, fault diagnosis procedures Engine Disassembly: Complete engine disassembly and reassembly procedures, including cylinder head, piston, crankshaft, and bearing services. Transmission Disassembly: Detailed steps for removing, disassembling, and reassembling the gearbox and final drive unit. Technical Depth Level Of Detail: Detailed, assumes general automotive knowledge. Covers component-level repair and adjustments, including proprietary component manufacturer instructions. Special Tools: Manual identifies recommended or required special tools by Mini part numbers, aiding in precision work. 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Yes, printable for physical reference Binding Type Delivery Method: Electronic Delivery via Email Paper Type Digital Quality: High-resolution PDF, ensuring clarity of text and diagrams ⚙️ Engine Specifications Primary Engine Engine Type: Inline-4, SOHC (Overhead Camshaft) Displacement: 1275 cc (77.7 cu in) Bore X Stroke: 70.6 mm x 81.3 mm (approx.) Performance Horsepower: Approx. 60-70 bhp (varies by specific tune and emissions regulations) Torque: Approx. 70-75 lb-ft (varies) Fuel System Carburetion: Typically a single SU HS4 or Zenith-Stromberg CD carburetor. Fuel Type: Leaded or Unleaded gasoline (depending on era and specific engine tuning) Cooling System Type: Liquid-cooled Lubrication Oil Type Recommendation: Refer to manual for specific API/ACEA classifications and viscosities (e.g., 20W50 is common). 🔧 Transmission Standard Type: 4-speed manual transaxle Optional Automatic Transmission: Not typically offered or common for the 1275 GT variant. Features Gear Ratios: Specific ratios available in manual (e.g., close-ratio options may exist). Fluid Capacity Oil Type: Refer to manual for specific gear oil (e.g., EP 90). Capacity: Approx. 1.7 liters (refer to manual for exact capacity). 📐 Dimensions Exterior Length: Approx. 3050 mm (120 in) Width: Approx. 1400 mm (55 in) Height: Approx. 1320 mm (52 in) Wheelbase Wheelbase: Approx. 2040 mm (80 in) Weights Curb Weight: Approx. 650-700 kg (1430-1540 lbs) Gross Vehicle Weight Rating: Refer to manual or VIN plate. Cargo Cargo Volume: Limited, but rear seats can fold for additional space. Tires And Wheels Wheel Size: Typically 10-inch or 12-inch wheels (rims). Tire Size Example: 145/80 R10 or 165/70 SR12 (depending on original fitment). Bolt Pattern: 4x100 mm (4x3.94 inches) common for later models, earlier could vary. Check manual for specifics. 🛡️ Safety Features Ratings Crash Test Data: Not extensively tested by modern standards. Designed for an era with different safety regulations. Active Features Braking System: Front disc brakes, rear drum brakes. Passive Features Seat Belts: Lap belts standard, optional shoulder belts in later models. Manual covers installation and adjustment. Construction: Monocoque (unibody) construction with integrated safety cage elements. Safety Precautions Manual Emphasis: Manual stresses the importance of using safety equipment and observing precautions, including torque wrench usage. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio (often optional or dealer-fitted), speaker configurations vary. Driver Assistance Advanced Systems: None by modern standards. Focus is on mechanical systems. Connectivity Bluetooth Usb: Not equipped. Modifications may be possible. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 miles or 6-12 months (refer to manual for exact recommendations). Tune Up Interval: Annual or as needed, covering spark plugs, ignition timing, carburetor adjustment. Fluid Specifications Engine Oil Grade: Refer to manual for specific SAE viscosity (e.g., 20W50, 10W40, depending on climate and year). Coolant Type:...