Manual Type:
        
        
            Parts Catalogue / Repair Manual
        
     
    
        
            Product Name:
        
        
            BMW Parts Catalogue 1948-1969 TEILEKATALOG
        
     
    
        
            Product Description:
        
        
            Teilekatalog. Parts Catalogue. Historische Motorräder von 1948 bis 1969. Classic motorcycles built between 1948 and 1969. Inhalt: Abbildungen der Motorradteile, Erläuterung zum Ordnungsprinzip der Teilenummern.
        
     
    
    
        
            Teilenummer Prinzip:
        
        
            Explanation of the BMW part number sequencing logic is included, vital for understanding part interchangeability and sourcing.
        
     
    
    
        
            Generation Covered:
        
        
            Post-War to Late 1960s Era BMW Motorcycles
        
     
 
    
    
    
        
            Target Audience:
        
        
            BMW motorcycle enthusiasts, collectors, restorers, and vintage motorcycle mechanics.
        
     
    
    
        
            Value Proposition:
        
        
            Essential reference for accurate part identification and sourcing for a significant era of BMW motorcycle history.
        
     
    
    
        
            Unique Selling Points:
        
        
            Bilingual content, coverage of iconic post-war BMW motorcycles, detailed exploded diagrams, explanation of part numbering logic.
        
     
    
        
            Diagram Quality:
        
        
            Clear, precise line drawings essential for correct assembly and identification of small parts.
        
     
    
    
        
            Post War Recovery:
        
        
            BMW's crucial period of rebuilding and innovation in motorcycle design following World War II.
        
     
 
    
    
    
        
            Vehicle Types:
        
        
            Motorcycles
        
     
    
        
            Model List:
        
        
            R 24, R 25, R 25/2, R 25/3, R 26, R 27, R 51/2, R 51/3, R 67, R 67/2, R 67/3, R 68, R 50, R 50/2, R 50 S, R 60, R 60/2, R 69, R 69 S
        
     
    
    
        
            Geographic Applicability:
        
        
            Primarily European market models, but applicable globally for parts identification.
        
     
    
    
        
            Languages:
        
        
            Bilingual (German/English)
        
     
    
    
 
    
    
    
        
            Major Systems:
        
        
            Engine, Transmission, Chassis, Electrical System, Bodywork, Fuel System, Braking System, Suspension, Wheels and Tires, Accessories
        
     
    
        
            Specific Models Covered In Detail:
        
        
            All listed R-series models from 1948-1969, including singles and twins.
        
     
    
        
            Suspension Details:
        
        
            Front forks (telescopic or Earles type) and rear swingarm suspension components.
        
     
    
        
            Electrical Components:
        
        
            Ignition system parts, lighting components, wiring harnesses, generators/alternators, batteries.
        
     
    
        
            Fuel System Details:
        
        
            Fuel tanks, petcocks, fuel lines, and carburetor components.
        
     
    
    
        
            Content Types:
        
        
            Parts identification, assembly diagrams, exploded views, part number listings, cross-references, explanation of part numbering system
        
     
    
        
            Assembly Context:
        
        
            Provides context for correct part assembly order and relationships for any repair or restoration.
        
     
    
    
        
            Depth:
        
        
            Comprehensive parts identification and sourcing for restoration and maintenance.
        
     
    
        
            Repair Focus:
        
        
            Primarily focused on part identification and interchangeability for maintenance and repair, rather than step-by-step repair procedures which would be found in a separate service manual.
        
     
 
    
    
    
    
    
        
            Quality:
        
        
            High-quality reproductions of original diagrams and text.
        
     
    
    
        
            Binding:
        
        
            Likely Perfect Bound or Spiral Bound for ease of use.
        
     
    
    
        
            Paper:
        
        
            Durable paper suitable for workshop environments.
        
     
    
    
        
            Diagrams:
        
        
            Detailed exploded diagrams illustrating the precise assembly and relationship of all components.
        
     
    
        
            Indexing:
        
        
            Likely includes an index by part name or assembly group for easy reference.
        
     
    
        
            Part Number Format:
        
        
            Standard BMW part numbering convention, which is explained in detail.
        
     
 
    
    
    
        
            Engine Type Range:
        
        
            Air-cooled, horizontally opposed twin-cylinder (Boxer) engines.
        
     
    
    
    
        
            R25/3:
        
        
            247cc, OHV, 13-15 hp
        
     
    
    
    
        
            R69S:
        
        
            594cc, OHV, 42 hp, 9.5:1 Compression Ratio
        
     
    
    
    
    
        
            R25:
        
        
            247cc, OHV, 12-13 hp
        
     
    
    
    
    
    
    
    
        
            R50 S:
        
        
            494cc, OHV, 35 hp, 9.5:1 Compression Ratio
        
     
    
        
            R69 S:
        
        
            594cc, OHV, 42 hp, 9.5:1 Compression Ratio
        
     
    
    
        
            Horsepower Range:
        
        
            Approximately 12 hp (R24) to 42 hp (R69S)
        
     
    
        
            Torque Figures:
        
        
            Torque figures vary by model but are generally in the range of 40-60 Nm for the larger twin-cylinder engines.
        
     
    
    
        
            Carburetor Types:
        
        
            Likely Bing or Dell'Orto carburetors, with specific models varying by motorcycle.
        
     
 
    
    
    
        
            General Recommendations:
        
        
            Annual service recommended, including oil changes, lubrication, brake checks, and engine tune-ups. Specific intervals would be in accompanying service manuals.
        
     
    
        
            Valve Adjustment:
        
        
            Typically every 5,000 - 10,000 km, depending on model and usage.
        
     
    
    
        
            Engine Oil:
        
        
            Typically SAE 20W/50 or SAE 30 mineral oil. Specific grade recommended by BMW for each model and operating temperature.
        
     
    
        
            Gearbox Oil:
        
        
            Likely SAE 90 or SAE 80W/90 hypoid gear oil.
        
     
    
        
            Final Drive Oil:
        
        
            Likely SAE 90 or SAE 80W/90 hypoid gear oil.
        
     
    
        
            Brake Fluid:
        
        
            N/A (Drum brakes typically do not use hydraulic fluid, but caliper seals would be relevant if any hydraulic actuation was present on later models within the range).
        
     
    
        
            Clutch Fluid:
        
        
            N/A (Cable-actuated clutch).
        
     
    
    
        
            Common Wear Items:
        
        
            Carburetor synchronization, valve adjustments, universal joint wear (final drive), electrical contact issues, aging fuel lines, clutch wear.
        
     
    
        
            Frame Components:
        
        
            Potential for frame fatigue or damage over time, requiring inspection.
        
     
    
    
        
            Restoration Support:
        
        
            This catalog is crucial for sourcing original or reproduction parts for these models.
        
     
 
    
    
    
        
            Legacy:
        
        
            BMW's post-war motorcycle production, rebuilding its reputation after WWII. Continuation of the boxer engine tradition.
        
     
    
    
        
            Key Developments:
        
        
            Transition from single-cylinder models to more powerful twin-cylinder boxers, introduction of Earles forks, telescopic forks, and performance enhancements (S models).
        
     
    
        
            Engine Updates:
        
        
            Evolution from the single-cylinder R2x series to the iconic boxer twins, increasing power, displacement, and refinement.
        
     
    
    
        
            Era Significance:
        
        
            This period covers BMW's resurgence in the motorcycle market, establishing many of the iconic design elements and engineering principles still seen today.