🏷️ Basic Information Identification Make: Triumph Model: TR6 Trophy Year: 1968 👋 Introduction Market Position Market Position: The Triumph TR6 Trophy was a desirable British sports car of its era, known for its performance and classic styling. This manual is essential for owners aiming to maintain or restore these vehicles. Competitive Analysis Competitive Analysis: Competed with other British sports cars and smaller European GTs. This manual provides factory-level detail critical for distinguishing it from less thoroughly documented vehicles. Key Features Key Features: Instant PDF download, printable, zoomable, comprehensive coverage, step-by-step instructions, factory-level technical data, illustrations and diagrams. 📋 Manual Details Coverage Areas Coverage Areas: Full service, repair, maintenance, troubleshooting, engine, transmission, drivetrain, chassis, suspension, steering, brakes, electrical system, bodywork, trim, accessories. Page Count Page Count: Estimated 300-500 pages (typical for comprehensive service manuals of this era, actual count not specified) Manual Type Manual Type: Repair Service Manual / Workshop Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Systems Covered: Engine (carburetion, ignition, cooling, lubrication), Fuel System, Exhaust System, Transmission (gearbox, clutch), Drivetrain (rear axle, driveshaft), Suspension (front & rear), Steering System, Braking System (hydraulic, mechanical), Electrical System (wiring diagrams, lighting, instrumentation, ignition), Body & Chassis, Interior Trim, Cooling System, Lubrication System, Wheels and Tires. Procedures Included Procedures Included: Step-by-step repair and maintenance procedures, disassembly, assembly, cleaning, adjustment, troubleshooting guides, diagnostic procedures, torque specifications, wiring diagrams, schematic diagrams. Technical Depth Technical Depth: Comprehensive, covering from basic maintenance and adjustments to in-depth engine rebuilding, transmission overhaul, and electrical system diagnosis. Suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Full Printable. Designed for clear reproduction of text and diagrams. Binding Type Binding Type: Digital Download (N/A for paper equivalent) Paper Type Paper Type: Digital (N/A for paper equivalent) ⚙️ Engine Specifications Primary Engine Primary Engine: Inline 6-cylinder, OHV (Overhead Valve) Performance Displacement: 2498 cc (2.5 Liters) Bore X Stroke: 90.3 mm x 92 mm (approximate) Horsepower Gross: 104 bhp @ 4500 rpm (US Market, twin Stromberg carburetors) Torque Gross: 143 lb-ft @ 3000 rpm (US Market) Fuel System Fuel System: Twin Stromberg CD175 Constant Depression Carburetors (US Market); Lucas Fuel Injection (European Market, later models) Ignition System Ignition System: Lucas Ignition System (Distributor, Coil, Spark Plugs) Cooling System Cooling System: Water-cooled, Pressurized System with Thermostatic Control Lubrication System Lubrication System: Wet Sump Lubrication System, Gear-driven Oil Pump 🔧 Transmission Standard Standard Transmission: 4-speed Manual Transmission with Overdrive (Laycock de Normanville electric overdrive optional) Optional Optional Transmission: 3-speed Automatic Transmission (less common) Features Clutch: Single dry plate, hydraulically operated Gear Ratios Manual: Typical Ratios: 1st: 3.13:1, 2nd: 2.17:1, 3rd: 1.35:1, 4th: 1.00:1 (Overdrive: 0.81:1) - specific ratios may vary and will be detailed in the manual. 📐 Dimensions Exterior Wheelbase: 98 inches (2489 mm) Overall Length: 161.5 inches (4102 mm) Overall Width: 60 inches (1524 mm) Overall Height: 49.5 inches (1257 mm) Weights Curb Weight: 2550 lbs (1157 kg) approx. Gross Vehicle Weight: Not specified, but typically around 3300 lbs. 🛡️ Safety Features Ratings Safety Ratings: N/A for this era. Safety features were minimal by modern standards. Active Features Active Features: Four-wheel hydraulic disc brakes. Passive Features Passive Features: Windscreen safety glass (though laminated glass became more common). Limited structural rigidity compared to modern vehicles. 💡 Technology Features Infotainment Infotainment System: Basic AM/FM radio (optional), analog gauges for speed, RPM, oil pressure, water temperature, fuel. Driver Assistance Driver Assistance Features: None by modern standards. Focus on driver engagement. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles or 6 months, whichever comes first. Refer to manual for precise recommendations. Grease Points: Regular lubrication of chassis grease points (refer to manual for locations and frequency). Fluid Specifications Engine Oil: SAE 20W-50 or SAE 10W-40 (depending on climate and specific recommendations, typically a high-quality conventional oil). Coolant: 50/50 mix of ethylene glycol antifreeze and distilled water. Ensure correct type for older engines. Brake Fluid: DOT 3 or DOT 4 (check for specific recommendations; typically glycol-based). Transmission Fluid: GL-4 Hypoid Gear Oil (e.g., SAE 80W-90) for manual gearbox. Refer to manual for specific grade. Rear Axle Fluid: GL-4 Hypoid Gear Oil (e.g., SAE 80W-90). Known Issues Known Issues: Rust (particularly around wheel arches, sills, and chassis outriggers), carburetor tuning issues, electrical gremlins, minor oil leaks, clutch wear, suspension bushings degradation. The manual addresses these comprehensively. Filters Oil Filter Part Number: Typical part numbers include Fram PH13 or equivalent. The manual will list exact cross-references. Air Filter Part Number: Specific to Stromberg CD175 carburetors. Manual will provide correct part numbers or specifications. 📚 Vehicle History Brand Heritage Brand Heritage: Triumph is a storied British marque with a long history of producing sporty and desirable automobiles, particularly its TR series of roadsters. Model Evolution Model Evolution: The TR6 was a development of...