Common Names:
MG Sprite, MG Midget, Austin Sprite
Chassis Codes:
AN5 (Sprite Mk1), GAN4 (Sprite Mk2, Midget Mk1), GAN6 (Sprite Mk3, Midget Mk2), GAN6 (Sprite Mk4, Midget Mk3)
Target Audience:
DIY mechanics, classic car enthusiasts, owners of Austin Sprite and MG Midget vehicles seeking to perform their own maintenance and repairs.
Value Proposition:
Offers significant cost savings compared to professional servicing. Empowers owners with the knowledge to maintain and repair their classic British sports cars accurately and efficiently.
Ease Of Use:
Step-by-step instructions and photographic guidance for all procedures.
Versatility:
Covers a wide range of models, engines, and trim levels within the specified years.
Durability Of Access:
Downloadable format allows for permanent ownership and access across multiple devices.
General Coverage:
Complete service, repair, maintenance, and troubleshooting for all aspects of the vehicle.
Estimated Pages:
High - likely several hundred pages, reflecting comprehensive coverage of multiple model years and variants.
Type:
Workshop Service Repair Manual
Format:
Downloadable Digital Format (PDF compatible)
Powertrain:
Engine (1098cc, 1275cc OHV), cooling system, fuel system (carburetion), exhaust system, clutch, gearbox (4-speed manual), driveshafts, differential, rear axle.
Chassis And Suspension:
Front suspension (coil springs, wishbones, kingpins), rear suspension (leaf springs, live axle), steering system (rack and pinion for later models), braking system (drum brakes, front disc brakes for later models), wheel specifications.
Electrical:
Wiring diagrams, lighting system, ignition system, starting system, charging system (generator/alternator), instrumentation, horn, wipers.
Body And Interior:
Body panel repair, door mechanisms, hood (soft top) operation and repair, interior trim, seats, dashboard, glass, seals.
Maintenance:
Lubrication schedules, fluid level checks, filter replacements, ignition timing adjustment, carburetor tuning, brake adjustments, suspension lubrication.
Repair:
Engine overhaul, transmission rebuild, brake caliper/cylinder repair, steering rack replacement, suspension component replacement, electrical component troubleshooting and repair, bodywork repair (welding, panel replacement).
Troubleshooting:
Diagnostic procedures for common engine performance issues, electrical faults, braking problems, and drivability concerns.
Specifications And Data:
Torque specifications, clearances, tolerances, wiring schematics, parts identification, exploded diagrams.
Depth:
Comprehensive. Covers everything from basic fluid changes and tune-ups to complete engine rebuilds, transmission overhauls, and body restoration. Includes detailed diagnostic procedures.
File Type:
PDF (Portable Document Format)
Accessibility:
Accessible on PC, Mac, tablets, and smartphones. Requires Adobe Reader.
Printability:
High quality, printable pages. Users can print individual pages, chapters, or the entire manual.
Binding:
N/A (Digital Download)
Paper:
N/A (Digital Download)
Engine Type:
Inline 4-cylinder, Overhead Valve (OHV)
Engine Displacement:
948 cc (early Sprite Mk1), 1098 cc (Sprite Mk2, Midget Mk1), 1275 cc (Sprite Mk3/4, Midget Mk2/3)
Bore X Stroke:
948cc: 62.9mm x 76.2mm; 1098cc: 64.6mm x 83.0mm; 1275cc: 70.6mm x 81.3mm
Compression Ratio:
Varied by year and tune, typically ranging from 8.0:1 to 9.5:1
Horsepower Approx:
Approx. 43-55 hp (948/1098cc), Approx. 65-70 hp (1275cc)
Torque Approx:
Approx. 50-65 lb-ft
Carburetion:
Typically twin SU carburetors (e.g., HS2, HS4) or single Zenith-Stromberg carburetor on later models.
Fuel Type:
Unleaded gasoline (with appropriate octane rating, often 91-95 RON or equivalent).
Oil Type Recommendation:
Classic engine oil (e.g., 20W-50) with ZDDP additive or a specifically formulated classic engine oil is highly recommended for wear protection. Consult manual for exact viscosity and API service classification.
Oil Capacity:
Approx. 3.5 - 4.0 US quarts (3.3 - 3.8 liters) with filter change.
Transmission Type:
4-speed Manual Synchromesh
Optional Transmissions:
Not commonly available for these models.
Gear Ratios:
Specific ratios vary slightly by model and engine, detailed in the manual.
Transmission Fluid Type:
GL-4 Gear Oil (e.g., SAE 90 or SAE 80W-90).
Wheelbase:
Approx. 82 inches (2083 mm) for early models, increasing slightly for later ones.
Length:
Approx. 145 inches (3683 mm)
Width:
Approx. 52-54 inches (1321-1372 mm)
Height:
Approx. 47-50 inches (1194-1270 mm) to top of windshield, lower with soft top down.
Curb Weight:
Approx. 1,500 - 1,700 lbs (680 - 770 kg)
Crash Safety Standards:
Designed to pre-date modern stringent safety regulations. Likely lacks advanced crumple zones, airbags, and ABS. Seatbelts were often optional or lap belts only for early models.
Braking System:
Front disc brakes (from Mk2/Midget Mk1 onwards) and rear drum brakes. Early Sprite Mk1 had all-around drum brakes.
Steering:
Early models: Rack and pinion. Later models: Rack and pinion.
Seatbelts:
Lap belts or optional three-point belts were available depending on year and market. Manual provides guidance on inspection and potential upgrades.
Body Construction:
Body-on-chassis construction with monocoque elements for later models.
Features:
Basic instrumentation: speedometer, tachometer (on some models), fuel gauge, oil pressure warning light, ammeter/voltmeter. Radio and heater were optional accessories.
Features:
None by modern standards. Relies on driver skill and feedback.
Oil Change Interval:
Typically every 3,000 miles (4,800 km) or 6 months, whichever comes first. Modern synthetic oils may allow longer intervals, but manual specifications should be prioritized.
Tune Up Interval:
Recommended tune-ups (spark plugs, points, condenser, carb adjustment) every 6,000-12,000 miles (9,600-19,200 km).
Grease Points:
Regular lubrication of kingpins, trunnions, and other chassis grease points is crucial, typically every oil change or 3,000 miles.
Brake Fluid Type:
DOT 3 or DOT 4 Disc Brake Fluid (check manual for specific recommendations based on system type).
Coolant Type:
Ethylene Glycol based antifreeze mixed with water (50/50 ratio). Consult manual for corrosion inhibitor recommendations.
Common Problems:
Rust (wheel arches, sills, floors), oil leaks (engine, gearbox, differential), clutch wear, kingpin wear, dashboard illumination issues, carburetor synchronization problems, starter motor solenoid issues, radiator core degradation.
Preventative Maintenance:
Regularly check for and address rust, monitor fluid levels, maintain proper tire pressure, keep cooling system clean, and address minor oil leaks promptly.
Heritage:
Both Austin-Healey and MG are iconic British marques with a rich history in sports car manufacturing and motorsport. The Sprite and Midget were designed as affordable, lightweight, and fun-to-drive sports cars.
Evolution:
The Sprite was introduced by Austin-Healey, with a very similar platform and components shared with the MG Midget, which was launched shortly after. Both underwent several iterations ('Marks') to improve performance, styling, and features, including engine size increases and chassis updates. Key evolutionary points include engine upgrades from 948cc to 1098cc and then to 1275cc, adoption of front disc brakes, and revised interior/exterior styling.
Production Period:
1958-1971 (as covered by the manual).
Manufacturing Location:
United Kingdom.
