Owners, restorers, mechanics working on Triumph TR2, TR3, TR3A, and TR3B sports cars.
Competitive Analysis
Value Proposition:
Comprehensive, factory-original information at a fraction of the cost of physical manuals or professional labor. Enables self-sufficiency in maintenance and repair.
Key Features
Features:
Step-by-step instructions, detailed illustrations, troubleshooting guides, electrical schematics, ease of printing specific sections.
Quality Assurance
Authenticity:
Official full factory service repair manual, providing accurate and complete technical data.
Printable without restriction, allowing for full or partial document printing.
Binding Type
Binding Style:
Digital Download (Printable format)
Paper Type
Digital Media:
Compatible with PC-based Windows and Mac operating systems, can be saved to hard drive or burned to CD-ROM.
Software Requirements
Reader Requirement:
Adobe PDF Reader
⚙️ Engine Specifications
Primary Engine
Engine Displacement Tr2:
1991 cc (121.5 cu in)
Engine Displacement Tr3 Tr3A Tr3B:
2138 cc (130.4 cu in)
Engine Type:
Inline 4-cylinder, Overhead Valve (OHV)
Performance
Horsepower Tr2:
90 hp @ 4500 rpm
Horsepower Tr3 Tr3A Tr3B:
95 hp @ 4700 rpm (TR3/TR3A), 100 hp @ 4700 rpm (TR3B with optional overdrive)
Torque Tr2:
113 lb-ft @ 2500 rpm
Torque Tr3 Tr3A Tr3B:
117 lb-ft @ 3300 rpm
Fuel System
Carburetion:
TR2: Twin Stromberg CD150 or SU H4. TR3/TR3A/TR3B: Twin Stromberg CD175 or SU HIF4.
🔧 Transmission
Standard
Gearbox Type:
4-speed manual
Optional
Overdrive:
Optional Laycock de Normanville overdrive on 2nd, 3rd, and 4th gears (available on TR3, TR3A, and standard on TR3B).
Features
Clutch:
Single dry plate diaphragm spring clutch.
📐 Dimensions
Exterior
Wheelbase:
83 inches (2108 mm)
Length:
152 inches (3861 mm)
Width:
56 inches (1422 mm)
Height:
50 inches (1270 mm) to top of windscreen
Weights
Curb Weight Tr2:
Approx. 2,100 lbs (953 kg)
Curb Weight Tr3A:
Approx. 2,150 lbs (975 kg)
🛡️ Safety Features
Ratings
Crash Safety:
N/A (Vehicle designed pre-modern safety standards)
Active Features
Brakes:
Hydraulic drum brakes front and rear (TR2), front disc brakes and rear drum brakes (TR3 onwards).
Passive Features
Seatbelts:
Optional, often owner-fitted.
💡 Technology Features
Infotainment
Features:
Basic analog instrumentation, AM radio (optional).
Driver Assistance
Features:
None (Designed prior to modern driver assistance systems).
Connectivity
Features:
None.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,000 miles or 6 months (refer to manual for specifics based on usage).
Grease Points:
Regular lubrication of kingpins, steering joints, driveshafts, and other chassis points is critical.
Fluid Specifications
Engine Oil Type:
SAE 20W-50 or 30 (refer to manual for ambient temperature recommendations). Historically, non-detergent oils were sometimes recommended for older engines.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (ensure compatibility with rubber seals).
Gearbox Oil Type:
GL-4 Hypoid Gear Oil (e.g., 80W-90)
Coolant Type:
Ethylene Glycol based antifreeze mixed with distilled water (50/50 ratio).