The Jaguar XK120, produced from 1948 to 1954, stands as a celebrated icon of post-war British automotive engineering. Renowned for its elegant aerodynamic design and the potent XK inline 6-cylinder engine, which delivered an impressive 160-180 horsepower, the XK120 was engineered to showcase performance and luxury. It was offered in several body styles, including the two-seater Open Sports, Fixed Head Coupe, and Drop Head Coupe, appealing to those who desired a blend of exhilarating driving dynamics and sophisticated styling. Its racing heritage further cemented its reputation, making it a highly collectible and significant vehicle in automotive history.
This comprehensive Workshop Service Repair Manual provides detailed guidance for the Jaguar XK120 models from 1948 through 1954. It covers all aspects of maintenance, repair, and technical specifications, including engine service, transmission repair, brake systems, electrical systems, suspension, steering, and chassis/body work. The manual is designed to assist both do-it-yourself enthusiasts and experienced mechanics in keeping the vehicle in optimal working condition. With step-by-step repair procedures, troubleshooting guidance, hundreds of illustrations, and critical technical data, this resource ensures accurate and efficient servicing.
Production Years:
1948-1954
Target Audience:
Do-it-yourselfer and experienced mechanic
Value Proposition:
Inexpensive way to keep vehicle working properly
Alternative To:
Overpriced paper textbooks or CD-ROMs delivered via mail
Primary Benefit:
Comprehensive, detailed service and repair information
Delivery Advantage:
Immediate download, no shipping costs or wait times
Covered Years:
1948, 1949, 1950, 1951, 1952, 1953, 1954
Covered Styles:
All Styles
Estimated Pages:
Hundreds
Type:
Workshop Service Repair Manual
Authenticity:
Official Full Factory Service Manual
Transmission Service:
Included
Electrical System:
Included
Wiring Diagrams:
Included
Differential Drive:
Included
General Maintenance:
Included
Periodic Lubrication:
Included
Emission System:
Included
Heater Air Conditioning:
Included
Engine Control System:
Included
Restraint System:
Included
Interior Components:
Included
Troubleshooting:
Included
Repair Procedures:
Step-by-step, based on complete disassembly
Diagnostic Procedures:
Combined with electrical service
Level Of Detail:
In-depth, professional quality
Illustration Support:
Hundreds of photos and illustrations
Instruction Format:
Numbered instructions, detailed substeps
Critical Information Highlight:
Notes, cautions, and warnings
Illustration Matching:
Bold figure numbers
Part Identification:
Enlarged inset illustrations
Navigation:
Numbered table of contents for fast information retrieval
Compatibility:
All PC based Windows operating systems and Mac
Readability Requirement:
Adobe PDF Reader
Printability:
Printable without restriction (entirely or select pages)
Delivery Method:
Download link on checkout page
Physical Format Option:
Can be burned to CD-ROM
Storage Option:
Saves to hard drive
Engine Type:
Inline 6-cylinder
Engine Displacement Liters:
3.4
Estimated Horsepower:
160-180 hp (depending on specific tuning and variant)
Estimated Torque Lb-Ft:
200-220 lb-ft (approximate)
Fuel Delivery:
Dual SU Carburetors (e.g., H4 or HVDA)
Fuel Type:
Premium Unleaded Gasoline
Ignition System:
Distributor, Coil, Spark Plugs
Cooling Type:
Water-cooled, pressurized
Valve Lash Adjustment Procedure:
Detailed in manual (typically cold adjustment)
Transmission Type:
4-speed Manual
Gear Ratios:
Specific ratios detailed in manual
Clutch Type:
Single dry plate, hydraulic actuation
Synchromesh:
Available on higher gears (e.g., 2nd, 3rd, 4th)
Transmission Fluid Type:
GL-4 Gear Oil (specific viscosity to be confirmed in manual)
Overall Length Inches:
166.0
Overall Width Inches:
64.0
Overall Height Inches:
50.0 (approximate, depending on body style)
Curb Weight Lbs:
2,800 - 3,000 lbs (approximate)
Gross Vehicle Weight Rating Gvwr Lbs:
Not typically specified in the same way as modern vehicles, but engine/chassis load capacity implied.
Crash Test Ratings:
Not applicable to the era of manufacture; no formal crash test ratings.
Braking System Type:
Hydraulic, Lockheed type
Seat Belts:
Not standard equipment from factory; available as aftermarket or later option.
Airbags:
Not applicable; not equipped.
Standard Tire Size:
Typically 6.00 x 16 or 6.50 x 16
Radio:
Optional, typically a period-correct AM radio.
Dashboard Layout:
Classic analog gauges, minimalistic design.
Cruise Control:
Not available.
Anti Lock Braking System ABS:
Not available.
Bluetooth:
Not available.
Engine Tuning Options:
The manual would cover factory specifications for tuning and basic performance adjustments.
Oil Change Interval:
Typically every 3,000 miles or annually (refer to manual for precise intervals).
Grease Points Lubrication:
Periodic lubrication of suspension and steering components (detailed in manual).
Spark Plug Replacement:
Refer to manual for recommended intervals and type.
Engine Oil Type:
API SF/CD or similar, 20W-50 or 10W-30 depending on climate (consult manual for exact specifications).
Coolant Type:
Ethylene Glycol based antifreeze (50/50 mix with distilled water).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic fluid.
Chassis Lubricant:
Lithium-based grease (NLGI #2 is common).
Common Wear Items:
Brake drums and linings, clutch components, kingpins and bushings, fuel system hoses and diaphragms, radiator core.
Electrical System Quirks:
Lucas electrical components are known for reliability issues; wiring can be brittle with age.
Body Corrosion:
Susceptible to rust, especially in sills, wheel arches, and around window frames.
Carburetor Adjustment:
Critical for smooth running, requires precise setup of SU carbs.
Ignition Timing:
Requires accurate setting using a timing light and knowledge of factory specifications.
Manufacturer Origin:
United Kingdom
Brand Reputation:
Renowned for performance, luxury, and elegant design in the post-war era.
Introduction Context:
Launched as a demonstration of Jaguar's engineering prowess with the powerful XK engine, intended to showcase post-war British automotive capability.
Design Inspiration:
Aerodynamic and stylish, drawing from pre-war racing car designs.
Body Styles:
Offered primarily as a two-seater Open Sports (OTS), a Fixed Head Coupe (FHC), and later a Drop Head Coupe (DHC).
Production Period:
1948-1954
Production Volume:
Approximately 12,000 units in total across all body styles.
Manufacturing Location:
Coventry, England
Motorsport Success:
The XK engine proved highly successful in racing, forming the basis for the XK120's performance reputation.
Automotive Icon Status:
Widely regarded as a post-war automotive icon and a benchmark for sports car performance.
Collectibility:
Highly sought after by collectors and enthusiasts worldwide.
Classics Car Status:
Recognized as a significant classic car with strong aftermarket support and club affiliations.
