🏷️ Basic Information Identification Make: Triumph Model: TR3 Production Years: 1955-1962 Codes Chassis Codes: TR3, TR3A, TR3B 👋 Introduction Market Position Segment: Classic British Sports Car Target Audience: Enthusiasts, classic car restorers, DIY mechanics. Competitive Analysis Competitors: Austin-Healey 100/3000, MG T-series, Alfa Romeo Giulietta Spider. Key Features Distinctiveness: Powerful engine for its era, robust chassis, engaging driving experience, iconic styling. 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Electrical System: Yes Suspension: Yes Brakes: Yes Steering: Yes Bodywork: Yes Interior: Yes Troubleshooting: Yes Maintenance Schedules: Yes Technical Specifications: Yes Special Tools: Yes Page Count Pages: 456 Manual Type Type: Workshop Service Manual Language Language: English Format File Format: PDF Accessibility: Instant Download Compatibility: Windows, Mac, Linux OS 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed overhaul procedures for cylinder head, block, pistons, crankshaft, camshaft, timing system, lubrication system. Fuel System: Carburetor (SU) tuning and rebuilding, fuel pump, fuel lines, tank. Ignition System: Distributor, coil, spark plugs, wiring, timing adjustments. Cooling System: Radiator, water pump, thermostat, hoses, fan. Exhaust System: Manifolds, pipes, mufflers, catalytic converter (if applicable for later models/conversions). Clutch: Removal, installation, adjustment, and overhaul of clutch assembly and hydraulic system. Transmission Manual: Gearbox disassembly, assembly, troubleshooting, fluid specifications. Driveshaft And Rear Axle: Universal joints, propeller shaft, differential (salisbury type), axle shafts, bearings. Front Suspension: Independent front suspension, wishbones, kingpins, bushings, shock absorbers, springs. Rear Suspension: Live rear axle, leaf springs, shock absorbers, bushings. Steering System: Steering box, track rods, tie rod ends, steering column, wheel alignment. Braking System: Front disc brakes (standard on TR3), rear drum brakes, master cylinder, wheel cylinders, brake lines, fluid specifications. Electrical System Charging: Generator/alternator, voltage regulator, battery. Electrical System Starting: Starter motor, starter solenoid, ignition switch. Electrical System Lighting: Headlights, taillights, turn signals, interior lights, wiring diagrams. Electrical System Instruments: Speedometer, tachometer, fuel gauge, oil pressure gauge, temperature gauge, ammeter. Body And Chassis: Frame inspection and repair, body panel removal and installation, doors, hood, trunk, convertible top mechanism. Interior Trim: Dashboard, seats, carpets, door panels, weather stripping. Procedures Included Routine Maintenance: Oil changes, lubrication points, filter replacements, tune-ups, brake adjustments. Diagnosis And Testing: Troubleshooting common symptoms, diagnostic procedures for all major systems. Component Removal And Installation: Step-by-step guides for removing and reinstalling all major components. Disassembly And Assembly: Detailed breakdown and reassembly of engine, transmission, suspension, and brake components. Adjustments: Carburetor synchronization, ignition timing, valve clearance, brake adjustments, clutch adjustment, steering alignment. Rebuilding Procedures: Comprehensive instructions for rebuilding engines, carburetors, brake systems, and other key components. Technical Depth Depth: Comprehensive, covering major overhauls, rebuilds, and detailed diagnostics. Illustrations: Detailed pictorial diagrams, exploded views, and photographs. Special Tool Reference: Identifies and illustrates specific service tools required for various procedures. Wear Limits: Provides precise wear limits for critical engine and mechanical components. Torque Specifications: Detailed torque values for all critical fasteners. Wiring Diagrams: Includes electrical wiring diagrams for the entire vehicle. 📊 Manual Specifications File Format Quality: High-resolution, fully printable PDF. Print Quality Printability: Yes, all pages are printable. Binding Type Binding: N/A (Digital PDF) Paper Type Paper Quality: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Inline-4, Overhead Valve (OHV) Displacement Cc: 1796 (for early TR3), 2138 (for TR3A and TR3B) Performance Horsepower Bhp: 62-65 bhp (1796cc), 100-105 bhp (2138cc) Torque Lb-Ft: 97 lb-ft (1796cc), 135 lb-ft (2138cc) Fuel System Carburetors: Twin SU H6 (early), Twin Stromberg CD175 (later TR3B) 🔧 Transmission Standard Type: 4-speed manual Optional Overdrive: Optional Laycock de Normanville overdrive (often on 3rd and 4th gear) Features Gear Ratios: Specific ratios detailed in manual (e.g., 3.45:1, 2.20:1, 1.41:1, 1.00:1 for standard gearbox). 📐 Dimensions Exterior Length In: Approx. 155.0 inches Width In: Approx. 57.0 inches Height In: Approx. 50.0 inches (top up) Weights Curb Weight Lbs: Approx. 2000-2150 lbs 🛡️ Safety Features Ratings Crash Testing: N/A (Modern crash safety standards not applicable to this era) Active Features Braking: Front disc brakes, rear drum brakes. Passive Features Seat Belts: Optional or aftermarket fitment, not standard from factory in early years. Roll Bar: Optional or aftermarket, particularly for TR3A models. 💡 Technology Features Infotainment Audio System: Typically a basic AM radio, often aftermarket fitted. Driver Assistance Features: None standard. Focus is on mechanical engagement. Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change: Every 3,000 miles or 6 months (refer to manual for exact spec). Grease Points: Regular greasing required at chassis points (refer to specific lubrication chart). Fluid Specifications Engine Oil: SAE 20W-50 or 20W-40 (check manual for specific ambient temperature recommendations). Brake Fluid: DOT 3 or DOT 4 (Glycol-based, check manual for specific type required). Transmission Fluid: GL-4 Hypoid Gear Oil (e.g., SAE 90, manual will specify exact type). Coolant: Ethylene Glycol based antifreeze mixed with distilled water (50/50 ratio typical). Known Issues Common Problems: Oil leaks (rocker cover, sump, rear crankshaft seal), gearbox synchromesh wear, kingpin wear, electrical...