Generation Code:
First Generation (Series 1 and Series 2)
Chassis Codes:
452 (Series 1), 452E (Series 2)
Model Years Covered:
1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970
Positioning:
The Jaguar Mark X was positioned as a large, luxurious, and powerful saloon, a flagship model in Jaguar's lineup, competing with established luxury marques.
Competitors:
Mercedes-Benz S-Class, Rolls-Royce Silver Cloud, Bentley S-Series, Rover P5B
Design Philosophy:
Elegant styling, superior ride comfort, powerful straight-six engine, and advanced engineering for its era.
Manual Purpose:
To enable owners and technicians to maintain, diagnose, and repair the Jaguar Mark X to a high standard, ensuring optimal performance and longevity.
Primary Coverage:
Workshop Service Repair Manual for Jaguar Mark X (1961-1970)
Specific Sections Detailed:
Engine, Transmission, Fuel System, Ignition System, Lubrication System, Exhaust System, Electrical System, Bodywork, Routine Maintenance, Troubleshooting, Overhaul Procedures, Proprietary Component Repairs
Estimated Page Count:
Comprehensive (Specific count not provided, but described as complete)
Type:
Workshop Service Repair Manual
Engine:
Detailed diagnosis, repair, overhaul, and tuning of Jaguar XK inline-6 engines (3.8L and 4.2L)
Transmission:
Repair and overhaul of manual (Moss) and automatic (BorgWarner DG series) transmissions
Fuel System:
Carburetor (SU HD6/HD8, Zenith Stromberg) adjustment, rebuild, and fuel pump service
Ignition System:
Distributor, coil, spark plugs, and wiring diagnostics and service
Lubrication System:
Oil pump, filter, and lubrication circuit maintenance
Cooling System:
Radiator, water pump, thermostat, and fan service
Exhaust System:
Inspection and repair of exhaust manifolds, pipes, and mufflers
Electrical System:
Wiring diagrams, lighting, instrumentation, starting and charging systems, and accessories
Brakes:
Hydraulic system, Girling disc brakes (front and rear), parking brake adjustment and service
Steering:
Burman recirculating ball steering box, power steering system (optional)
Suspension:
Front independent suspension (double wishbone), rear live axle with trailing arms and Panhard rod
Bodywork:
Body panel alignment, door mechanisms, interior trim, and associated components
Maintenance:
Routine servicing, lubrication, fluid changes, filter replacement, tune-ups
Troubleshooting:
Diagnostic procedures for common and uncommon faults across all systems
Repair:
Step-by-step instructions for component removal, repair, and reinstallation
Overhaul:
Detailed procedures for complete engine, transmission, and major component rebuilds
Installation:
Procedures for installing new or rebuilt components
Depth:
Comprehensive, suitable for professional technicians and experienced DIY enthusiasts. Covers everything from basic tune-ups to complete engine and gearbox rebuilds.
Special Tools:
References and illustrations for Jaguar-specific special tools required for certain adjustments and repairs.
Proprietary Components:
Includes information on proprietary components and references manufacturer instructions for optimal understanding and service.
Safety Precautions:
Emphasizes safety equipment and precautions, including the use of torque wrenches for accurate fastener tightening.
Engine Options:
Jaguar XK inline-6: 3.8L (XK380) and 4.2L (XK420)
Displacement 3.8L:
3781 cc (230.7 cu in)
Bore Stroke 3.8L:
87 mm x 102 mm (3.43 in x 4.02 in)
Compression Ratio 3.8L:
8.0:1 (standard), 8.5:1 (optional 'S' type)
Horsepower 3.8L:
220 bhp @ 5500 rpm (standard), 245 bhp @ 5500 rpm ('S' type)
Torque 3.8L:
283 lb-ft @ 3000 rpm (standard), 300 lb-ft @ 3000 rpm ('S' type)
Displacement 4.2L:
4235 cc (258.4 cu in)
Bore Stroke 4.2L:
92.1 mm x 106.7 mm (3.62 in x 4.20 in)
Compression Ratio 4.2L:
8.5:1
Horsepower 4.2L:
246 bhp @ 5500 rpm
Torque 4.2L:
331 lb-ft @ 4000 rpm
Carburetion:
Typically twin SU HD6 or HD8 carburetors for 3.8L; later 4.2L models may use Zenith Stromberg CD series.
Fuel Type:
Premium Unleaded Gasoline (historically Leaded)
Fuel Delivery:
Mechanical or electric fuel pump
Crash Test Era:
No formal crash testing as per modern standards was conducted during this period.
Brakes:
Girling hydraulic disc brakes on all four wheels (standard on Mark X), providing excellent stopping power for its time.
Suspension:
Independent front suspension and a well-controlled live axle rear axle contributed to stable handling.
Seatbelts:
Seatbelts were typically optional equipment, not standard, during much of the production run.
Construction:
Body-on-frame construction typical of large luxury sedans of the era, designed for structural integrity and ride comfort.
Radio:
Factory fitted or dealer installed AM/FM radio was common, often with a single speaker.
Speakers:
Typically one or two speakers, usually located in the dashboard or rear parcel shelf.
Power Steering:
Standard on most models from the outset, aiding maneuverability of the large saloon.
Air Conditioning:
Optional factory-fitted air conditioning was available on some models, a rare luxury feature at the time.
Connectivity Era:
No modern electronic connectivity features like Bluetooth or USB were available. Communication was limited to the radio.
Oil Change:
Typically every 3,000 miles or 6 months, depending on usage and oil specification.
Tune Up:
Recommended at 6,000-12,000 mile intervals, including spark plug check/replacement, ignition timing, and carburetor adjustment.
Grease Points:
Regular lubrication of suspension and steering components via grease nipples (typically every 1,000-3,000 miles).
Engine Oil:
API SE/SF or equivalent (e.g., 20W-50 or 10W-40 depending on climate and oil formulation). Refer to manual for precise recommendations.
Coolant:
Ethylene Glycol based antifreeze mixture (e.g., 50/50 with distilled water).
Transmission Fluid Auto:
Type 'A' or 'Dexron' equivalent (refer to manual for precise Borg-Warner specification).
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
Differential Fluid:
Hypoid gear oil (e.g., SAE 90 GL-4 or GL-5).
Carburetor Issues:
SU carburetors can become unbalanced, leading to rough idling and poor performance if not regularly serviced. Zenith Strombergs can develop vacuum leaks.
Cooling System:
Radiator clogging, water pump leaks, and thermostat failures are common due to age and material degradation. Overheating can occur.
Electrical System:
Wiring loom degradation, Lucas electrical components (known for occasional unreliability), and contact issues are frequent.
Suspension Bushings:
Rubber bushings in suspension and steering wear out over time, leading to vague handling and noise.
Rust:
As with many cars of this era, bodywork rust can be a significant issue, particularly in the sills, wheel arches, and around window seals.
Heritage:
Jaguar Cars, founded by Sir William Lyons, had a rich heritage in producing stylish, high-performance sports cars and luxury saloons.
Predecessor:
The Mark X replaced the Jaguar Mark IX as Jaguar's flagship saloon.
Series 1:
Launched in 1961 with the 3.8L XK engine, independent rear suspension, and distinctive styling. Features included power steering and disc brakes.
Series 2:
Introduced in 1965, featuring the larger 4.2L XK engine, an improved automatic transmission option (Borg-Warner Model 8), and minor styling revisions.
Production Period:
1961 - 1970
Assembly Location:
Coventry, England
Significance:
Represented Jaguar's interpretation of a modern, luxurious grand tourer saloon, combining performance with opulence.
