Target Audience:
Triumph owners, independent repair shops, classic car enthusiasts, and restoration specialists.
Value Proposition:
Offers comprehensive, authoritative guidance for maintaining and repairing a wide range of classic Triumph models, crucial for preserving their value and performance.
Breadth Of Coverage:
Covers multiple iconic Triumph models, providing a centralized resource for a significant portion of the brand's popular heritage vehicles.
Depth Of Detail:
Goes beyond basic maintenance to include in-depth repair procedures, technical specifications, and troubleshooting, suitable for professional mechanics.
Historical Significance:
Essential for owners of classic Triumphs, ensuring correct maintenance and repair practices to maintain originality and historic integrity.
Engine Mechanical:
Engine assembly, disassembly, component inspection, repair, piston rings, bearings, cylinder head, valve train, crankshaft, camshaft, timing, oil pump, cooling system, lubrication.
Engine Fuel System:
Carburetor overhaul and adjustment (Stromberg, SU), fuel injection systems (where applicable), fuel pump, fuel filter, fuel lines, emissions control systems.
Engine Ignition System:
Distributor, ignition timing, spark plugs, ignition coils, electronic ignition components.
Transmission Manual:
Gearbox disassembly, inspection, repair, clutch assembly, flywheel, driveshafts, universal joints, gearbox oil specifications.
Transmission Automatic:
Details on automatic transmission systems, if applicable to specific models covered. (Note: Many Triumph models were manual).
Suspension:
Front suspension (independent, often with wishbones and coil springs), rear suspension (live axle, leaf springs or trailing arms), shock absorbers, bushings, alignment specifications.
Steering:
Steering rack, steering column, linkages, power steering systems (if equipped), steering wheel removal, lubrication.
Brakes:
Brake system diagnosis, hydraulic system components (master cylinder, wheel cylinders, calipers, brake lines, brake fluid), disc brake servicing, drum brake servicing, parking brake system.
Electrical System:
Wiring diagrams, battery, charging system (alternator/dynamo), starting system (starter motor), lighting system (headlights, taillights, indicators), instrumentation, fuses, relays, switches, ignition switch, wiper system.
Bodywork:
Body panel removal and installation, door mechanisms, window regulators, convertible top mechanisms, body shell repair, jacking points, underbody protection, interior trim.
Heating And Ventilation:
Heater matrix, blower motor, ducting, air vents, demister system.
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, ignition timing adjustment, coolant checks, brake fluid changes, lubrication points, general inspection.
Troubleshooting:
Diagnostic charts and procedures for common starting, running, electrical, and braking issues. Fault finding based on symptoms.
Component Overhaul:
Detailed step-by-step instructions for rebuilding major components like engines, transmissions, carburetors, and brake systems.
Repair And Replacement:
Instructions for replacing worn or damaged parts, including suspension arms, steering components, exhaust systems, and body panels.
Adjustment Procedures:
Specific procedures for adjusting carburetors, ignition timing, clutch engagement, and brake systems to factory specifications.
Electrical Diagnostics:
Schematic interpretation, testing of electrical circuits, component testing, and fault diagnosis using multimeters.
Diagnostic Capabilities:
Advanced diagnostic procedures for engine performance, electrical faults, and mechanical issues. Includes symptom-based troubleshooting guides.
Rebuilding Specifications:
Detailed specifications for engine and transmission rebuilds, including clearances, torque values, and material specifications.
Expert Knowledge:
Provides insights and tips from experienced Triumph technicians, covering nuances specific to the brand's engineering.
Engine Types Covered:
Inline-4 Cylinder (e.g., Herald, Spitfire, Dolomite 1300/1500), Inline-6 Cylinder (e.g., GT6, Stag), OHV (Overhead Valve) and OHC (Overhead Camshaft) designs.
Common Engine Variants:
1.1L, 1.3L, 1.5L (Herald/Dolomite), 1.3L, 1.5L (Spitfire), 2.0L Inline-6 (GT6), 3.0L V8 (Stag – note: manual may focus more on Inline-6 due to availability).
Horsepower Range:
Approximately 40-100 bhp depending on engine size and tune.
Torque Range:
Approximately 55-120 lb-ft depending on engine size and tune.
Carburetion:
Dual SU carburetors (e.g., Stromberg CD series) common on performance models, single or twin Stromberg/SU on smaller engines. Specific jet sizes and needle types detailed.
Fuel Type:
Historically designed for leaded or unleaded gasoline (manual will specify appropriate grades and octane ratings). Fuel pump types (mechanical, electric).
Oil Change Interval:
Typically every 3,000 miles or 6 months for older vehicles. Manual will provide specific recommendations based on oil type and usage.
Tune Up Interval:
Spark plug gap checks, ignition timing adjustments, and carburetor adjustments recommended annually or every 6,000-10,000 miles.
Coolant Change Interval:
Every 2 years or as per glycol type. Manual specifies appropriate coolant types and additives.
Engine Oil Type:
API SG or SH rated oils, SAE 20W-50 or 10W-40 common for classic engines. Manual specifies viscosity and API rating.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid. Manual will detail flush and bleeding procedures.
Coolant Specification:
Ethylene glycol-based antifreeze. Manual will specify mix ratios and corrosion inhibitor requirements.
Engine Oil Leaks:
Common due to age and rubber seal deterioration. Manual details gasket and seal replacement procedures.
Carburetor Icing Or Gumming:
Can occur with infrequent use or poor fuel quality. Manual provides cleaning and rebuilding steps.
Rust And Corrosion:
A common issue with British cars of this era, particularly in areas prone to salt. Manual covers body repair and rust prevention.
Electrical Gremlins:
Wiring can degrade over time. Manual's wiring diagrams are critical for diagnosis.
Manufacturer Origin:
British, part of the Leyland Motor Corporation for much of this period. Known for producing sporty, affordable cars.
Triumph Herald:
Produced 1959-1971. Known for its innovative chassis design and unique styling. Available in various body styles.
Triumph Spitfire:
Produced 1962-1980. A small, affordable British sports car with body-on-chassis construction, evolving through several 'Mk' versions.
Triumph Vitesse:
Produced 1962-1971. Essentially a GT version of the Herald with a more powerful 6-cylinder engine.
Triumph Gt6:
Produced 1963-1973. A sporty coupe based on the Spitfire chassis but featuring the 2.0L straight-six engine from the Vitesse and a fixed roof.
Triumph Stag:
Produced 1970-1977. A four-seater grand tourer known for its luxurious styling and the powerful 3.0L V8 engine. Developed by Triumph's design studio.
Triumph Dolomite:
Produced 1970-1980. A range of executive saloons and sporty coupes, most famously the Dolomite Sprint with its 16-valve OHC engine.
Triumph Tr Series:
Includes TR4, TR5 (fuel-injected), TR6. Iconic British sports cars known for their robust engineering and sporting performance.
Triumph Acclaim:
Produced 1981-1984. A badge-engineered Honda Ballade, representing Triumph's final passenger car model before the marque's demise.
Manufacturing Locations:
Primarily Coventry, England. Some models may have had assembly or components from other Leyland plants.