Market Position:
Specialized service manual for a niche, classic utilitarian vehicle, essential for owners and restorers of vintage Harley-Davidson motorcycles with sidecar configurations.
Competitive Analysis:
Few direct competitors in terms of specialized Servicar manuals. Covers a unique period of Harley-Davidson's utility vehicle development, distinct from standard motorcycle manuals.
Key Features:
Covers the specific SV Servicar model, detailed diagrams, troubleshooting sections, and maintenance schedules crucial for preserving and operating this vintage machine.
Covered Years:
1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958
Estimated Page Count:
Comprehensive (exact number not specified, typical for this era is 300-500+ pages)
Manual Type:
Workshop Service Manual / Repair Manual
Engine Systems:
Engine disassembly, assembly, lubrication, cooling, ignition, carburetion, fuel delivery
Drivetrain Systems:
Transmission (clutch, gearbox, primary drive), final drive (shaft drive, rear wheel hub)
Chassis Systems:
Frame, front fork (leading link), rear suspension, steering system, wheels, tires
Braking Systems:
Front and rear brake mechanisms, linkages, cables
Electrical Systems:
Generator, battery, lighting, ignition switch, wiring diagrams, accessory circuits
Bodywork And Attachments:
Servicar body (cargo box), fenders, seat, controls, paint and trim recommendations
Maintenance Procedures:
Lubrication schedules, tune-ups, fluid changes, filter replacement, ignition timing adjustments, carburetor adjustments
Troubleshooting Guides:
Diagnostic charts, symptom-based troubleshooting for engine, electrical, and mechanical issues
Repair Procedures:
Detailed step-by-step instructions for component removal, overhaul, and installation
Rebuilding Instructions:
Engine rebuild, transmission overhaul, carburetor rebuilding, generator servicing
Technical Depth:
Comprehensive from basic owner maintenance to full engine and component rebuilds, including diagnostic procedures and specifications.
Engine Type:
Air-cooled, 45 cubic inch (740cc) V-twin OHV
Engine Bore:
Approx. 2.75 inches (70 mm)
Engine Stroke:
Approx. 3.81 inches (97 mm)
Compression Ratio:
Typically around 5.0:1 to 6.0:1 depending on year and variant
Horsepower:
Approximately 20-25 HP (varies by year and specific tuning)
Torque:
Sufficient for utility purposes, exact figures not commonly cited in historical manuals, focus on tractability.
Carburetor Type:
Linkert carburetor (e.g., M-series)
Fuel Type:
Gasoline (leaded, with appropriate octane rating for the era)
Transmission Type:
3-speed sliding mesh, constant mesh manual transmission
Optional Transmission:
N/A for this model range
Clutch Type:
Dry multi-plate clutch
Gear Ratios:
Specific ratios detailed within the manual, geared for torque and utility.
Final Drive:
Shaft drive to the rear wheel of the motorcycle; differential for the sidecar wheel if applicable to specific Servicar SV configurations.
Overall Length:
Varies based on specific sidecar configuration, but generally longer than a standard motorcycle.
Wheelbase:
Varies significantly with sidecar attachment. Motorcycle wheelbase approx. 57-60 inches.
Cargo Capacity:
Servicar body designed for cargo transport, specific volume and weight limits detailed in the manual. Typically around 300-500 lbs payload.
Dry Weight:
Motorcycle portion approx. 450-500 lbs; total Servicar unit much heavier. Manual will provide specific configurations.
Safety Ratings:
Not applicable to modern crash test standards. Safety relies on robust mechanical design and proper operation.
Active Safety Features:
Effective braking system for its era, stable chassis geometry.
Passive Safety Features:
Sturdy frame construction, integrated sidecar providing stability.
Oil Change Interval:
Refer to manual, typically every 1,000-1,500 miles or annually. Specific intervals depend on operating conditions.
Tune Up Interval:
Refer to manual, often at 3,000-5,000 mile intervals or as needed based on performance.
Ignition Timing Check:
Refer to manual, crucial for performance and engine health, often part of regular tune-ups.
Engine Oil Type:
Refer to manual for specific grade (e.g., SAE 30, SAE 50, or straight weight oils common at the time). Historically, non-detergent oils were often used.
Transmission Oil Type:
Refer to manual for specific grade and type (e.g., gear oil, potentially SAE 90).
Primary Chaincase Oil Type:
Refer to manual for specific type (often shared with transmission or specific primary lubricant).
Brake Fluid:
Not applicable for drum brake systems which used mechanical actuation.
Known Issues:
Wear on valve guides, carburetor adjustment sensitivity, ignition system reliability, potential for oil leaks common in vintage air-cooled V-twins, drive chain wear.
Common Repairs:
Carburetor rebuilding, ignition coil and points replacement, valve seat regrinding, engine gasket replacement, primary chain adjustment.
Brand Heritage:
Harley-Davidson, a long-standing American motorcycle manufacturer known for its durable and powerful V-twin engines and iconic designs.
Model Evolution:
The Servicar evolved from earlier military and civilian utility models. The SV designation represents a key period in its development, adapting the established motorcycle platform for cargo and passenger transport with a integrated sidecar.
Production Period:
1940-1958 covers a significant era of the Servicar's production, including wartime applications and post-war civilian use.
Manufacturing Location:
Milwaukee, Wisconsin, USA