🏷️ Basic Information Identification Make: Harley-Davidson Model: Panhead Year: 1956 Manual Product Name: Harley-Davidson Panhead 1956 Factory Service Repair Manual 👋 Introduction Market Position Positioning: Essential reference for owners and mechanics of the iconic 1956 Harley-Davidson Panhead. Competitive Analysis Competitors: Provides proprietary, factory-accurate information superior to aftermarket manuals for this specific model year. Key Features Ease Of Use: Designed to be 'handy, easy to read' for both professional mechanics and DIY enthusiasts. Completeness: Offers 'comprehensive explanations' of all necessary procedures. 📋 Manual Details Coverage Areas Primary Coverage: Repair, adjustment, and maintenance procedures for the 1956 Harley-Davidson Panhead motorcycle. Page Count Estimated Pages: Approx. 200-300 pages (typical for a factory service manual of this era, exact count not specified in product info) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: Printed (implied by 'handy, easy to read reference book') 📖 Manual Coverage Systems Covered Engine: Disassembly, assembly, inspection, and repair of the Panhead V-twin engine (OHV). Transmission: Service and repair procedures for the 4-speed constant mesh transmission. Electrical System: Wiring diagrams, ignition system, lighting, charging system (generator). Fuel System: Carburetor (e.g., Linkert M series) disassembly, adjustment, and overhaul; fuel tank and lines. Brakes: Drum brake system inspection, adjustment, and component replacement (front and rear). Suspension: Front fork (leading link or telescopic, depending on exact sub-model within 1956 Panhead) and rear swingarm suspension service. Frame And Body: Frame inspection, bodywork removal/installation, fenders, seat assembly. Procedures Included Maintenance: Scheduled maintenance, lubrication points, fluid changes, filter replacement. Troubleshooting: Diagnostic procedures for common running issues and component failures. Repair: Detailed step-by-step repair instructions for all major mechanical and electrical components. Disassembly Assembly: Complete procedures for taking apart and reassembling all motorcycle systems. Installation: Instructions for installing new or replacement parts and accessories. Technical Depth Depth: Comprehensive: Covers everything from basic adjustments and fluid changes to full engine and transmission rebuilds. 📊 Manual Specifications File Format Digital Format: Not specified (assuming printed, but digital copies may exist). Print Quality Quality: High (typical for factory publications, designed for durability in workshop environments). Binding Type Binding: Stapled or Perfect Bound (typical for factory manuals of this era). Paper Type Paper: Durable paper stock, often with glossy or semi-gloss finish for illustrations. ⚙️ Engine Specifications Primary Engine Type: OHV V-twin (Panhead) Displacement: 69.4 cubic inches (1138cc) Bore X Stroke: 3.4375 in x 3.125 in (87.3 mm x 79.4 mm) Performance Horsepower: Approx. 40-50 HP (specific output varied slightly by year/tune) Torque: Approx. 50-60 ft-lbs (specific output varied slightly by year/tune) Fuel System Carburetor Type: Typically Harley-Davidson Linkert M-Series (e.g., M74B, M74H) Fuel Type: Gasoline (Premium recommended for optimal performance and engine longevity) Lubrication Oil System: Total Loss Oil System (oil pumped to engine, not recirculated) Oil Type Recommendation: Straight-weight mineral oil (e.g., SAE 50 or SAE 60, depending on ambient temperature and Harley-Davidson specifications of the era). Modern equivalents may be available. 🔧 Transmission Standard Type: 4-Speed Constant Mesh Optional Options: None typically offered for the 1956 model year. Features Clutch Type: Wet multi-plate clutch Transmission Oil Type: Specific Harley-Davidson transmission lubricant or equivalent SAE 50 gear oil. 📐 Dimensions Exterior Wheelbase: Approx. 59.5 inches (1511 mm) (can vary slightly based on model variant) Seat Height: Approx. 28-30 inches (711-762 mm) (depending on suspension setup and tire size) Weights Dry Weight: Approx. 470-500 lbs (213-227 kg) (depending on model variant and accessories) 🛡️ Safety Features Ratings Crash Testing: Not applicable for vintage motorcycles; safety features focused on mechanical reliability and rider control. Active Features Braking System: Single-leading shoe drum brakes (front and rear). Lighting: Headlight, taillight, brake light, turn signals (depending on market regulations). Passive Features Frame Construction: Steel tube frame designed for stability and load-bearing. 💡 Technology Features Infotainment Features: None. Focus is on mechanical and electrical function. Driver Assistance Features: None. Rider is solely responsible for control and awareness. Connectivity Features: None. 🔧 Maintenance Service Intervals Oil Change: Frequent oil changes are critical due to the total loss system; check manual for specific mileage or time intervals (e.g., every 500-1000 miles). Ignition Timing: Periodic checks and adjustments are essential for optimal performance and starting. Carburetor Adjustment: Regular checks for proper idle and acceleration performance. Fluid Specifications Engine Oil Capacity: Typically around 3 quarts (2.8 liters) for the engine, plus additional oil for the total loss system. Transmission Oil Capacity: Approx. 1 pint (0.5 liters) for the transmission. Primary Chain Case Oil: Separate oil for the primary drive chain and clutch, capacity typically around 1 quart (0.95 liters). Known Issues Oil Leaks: Common with vintage Harleys due to aging seals and gaskets. Manual details proper sealing techniques. Carburetor Tuning: Linkert carburetors require precise adjustment for smooth running. Generator Charging: Generator output can degrade over time; manual covers testing and adjustment. 📚 Vehicle History Brand Heritage Brand Establishment: Harley-Davidson Motor Company, founded in 1903, a...