🏷️ Basic Information

Make:

Jaguar

Model:

Mark 10

Model Alias:

Jaguar 4.2 Litre Saloon

Chassis Prefix:

140001 onwards (4.2 Litre)

👋 Introduction

Historical Context:

The Jaguar Mark 10 was a flagship luxury saloon produced during an era of British automotive excellence, representing the pinnacle of Jaguar's design and engineering for its time. This parts catalogue is essential for maintaining such a significant vehicle.

Market Niche:

Competed with other high-end luxury saloons from brands like Rolls-Royce, Bentley, and Mercedes-Benz, positioning itself as a performance-oriented luxury option.

Manual Value Proposition:

Empowers owners and independent workshops to accurately identify and source the correct original or equivalent replacement parts, crucial for maintaining the integrity and value of a classic Jaguar. Facilitates cost savings by enabling self-sourcing of parts.

📋 Manual Details

Systems Covered:

Engine, Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System, Clutch, Gearbox (Manual & Automatic), Overdrive (if applicable), Propeller Shaft, Differential, Rear Axle, Front Suspension, Rear Suspension, Steering, Brakes (Hydraulic & Disc), Electrical System (Lighting, Ignition, Starting, Charging), Bodywork (Structure, Panels, Trim), Interior Fittings, Heating System, Air Conditioning (if fitted), Body Sealing and Weatherstripping, Wheels and Tyres

Estimated Page Count:

200-300 pages (estimated for a comprehensive catalogue)

Type:

Spare Parts Catalogue / Parts List

Language:

English

Format:

Printed (likely hard or soft bound)

📖 Manual Coverage

Primary Focus:

All mechanical and electrical components of the Jaguar Mark 10 for parts identification and ordering.

Content Scope:

Identification of specific replacement parts via exploded diagrams and part numbers. Information is critical for correct part ordering, not diagnostic procedures or repair instructions themselves.

Level Of Detail:

Detailed part numbering, sub-assembly breakdowns, and visual representation of components. Assumes a baseline understanding of vehicle mechanics for part identification.

📊 Manual Specifications

Medium:

Printed

Paper Type And Print:

Likely printed on durable paper stock suitable for workshop environments. Diagrams and text are expected to be clear and legible.

Binding:

Likely spiral bound or perfect bound for ease of use in a workshop, allowing it to lay flat.

⚙️ Engine Specifications

Engine Type:

Inline 6-cylinder, DOHC (Double Overhead Camshaft)

Displacement:

3.8-litre (3781 cc) for early models, later upgraded to 4.2-litre (4235 cc)

Horsepower:

Approx. 220-265 bhp depending on variant and carburettion

Torque:

Approx. 240-260 lb-ft depending on variant

Carburetion:

Typically twin SU HD6 or HS6 carburetors (3.8L) or triple SU HS8 carburetors (4.2L)

Engine Identifier:

Prefixes like 'JA' for 3.8L, 'NB' or 'NC' for 4.2L manual/automatic

🔧 Transmission

Transmission Type:

3-speed Borg-Warner Model 8 (automatic) was standard on many models, particularly later 4.2L variants.

Manual Transmission:

4-speed manual gearbox (Moss type) with or without Overdrive (Laycock de Normanville) was available as an option, especially on earlier 3.8L models.

Drivetrain:

Rear-wheel drive

📐 Dimensions

Wheelbase:

10 feet 3 inches (3124 mm)

Overall Length:

16 feet 6 inches (5029 mm)

Overall Width:

5 feet 10 inches (1778 mm)

Overall Height:

4 feet 7 inches (1397 mm)

Kerb Weight:

Approx. 3,800-4,200 lbs (1725-1905 kg) depending on specification

🛡️ Safety Features

Crash Safety Era:

As this vehicle predates modern crash testing standards (e.g., Euro NCAP, NHTSA), formal safety ratings are not applicable. However, it featured a robust body-on-frame construction for its time.

Braking System:

Girling hydraulic disc brakes on all four wheels (Dunlop disc brakes on earlier models), considered advanced for its era. Power assistance often fitted.

Seatbelts:

Optional front seat belts were available and often fitted by owners or dealers. Rear seat belts were less common as standard fitment.

Body Construction:

Body-on-frame construction with a separate chassis, contributing to structural integrity but different from modern unibody designs.

💡 Technology Features

Radio:

Optional period-correct radios, often AM/FM, were available. Many were upgraded to more modern units by owners.

Power Steering:

Burman recirculating ball steering system, often power-assisted, providing comfortable and precise steering for a large luxury car.

Climate Control:

Optional air conditioning systems were available, typically dealer-fitted or specified from new. Interior heating was standard and robust.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000 - 5,000 miles or 6 months, whichever came first. Refer to specific workshop manual for exact intervals.

Grease Points:

Regular lubrication of suspension, steering, and driveline components with a suitable grease gun is essential at intervals often specified as every 1,000 miles or before long journeys.

Engine Oil Type:

SAE 20W-50 or 20W-40, conforming to API SE or earlier classifications. Consult original manual for precise API rating.

Coolant Type:

Ethylene glycol-based antifreeze mixed with distilled water. Typically a 50/50 mix for optimal freeze and corrosion protection.

Transmission Fluid Automatic:

Borg-Warner Type A (or equivalent such as Dexron II/III for modern replacements, but Type A is the original spec).

Transmission Fluid Manual:

Gear oil, e.g., SAE 90 EP (Extreme Pressure) for Moss gearboxes. Overdrive units may require specific fluid (e.g., Automatic Transmission Fluid Type A).

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid (glycol-based). Essential to use the correct type for system compatibility.

Common Wear Items:

Carburetor tuning and maintenance, radiator leaks, oil seals (especially crankshaft and gearbox), UJ (universal joint) wear, suspension bush deterioration, differential pinion seal leaks, and occasional SU fuel pump issues.

Electrical System Quirks:

Wiring loom degradation over time, Lucas electrical component reliability (though often over-criticized), generator/alternator output, and dashboard switchgear wear.

📚 Vehicle History

Jaguar Legacy:

Jaguar Cars has a long history of producing luxurious, high-performance saloons and sports cars, with a reputation for engineering prowess and elegant styling.

Mark Series Lineage:

The Mark 10 (internally designated 'Project ZB' and later 'XJ14') succeeded the Mark IX and was a significant departure in styling, featuring independent rear suspension and IRS derived from the E-Type. It was later replaced by the Jaguar XJ6.

Production Years:

1961-1970

Manufacturing Locations:

Coventry, England

🏆 Awards & Recognition

Historical Acclaim:

While specific awards for the Mark 10 might be scarce in modern terms, it was consistently praised by contemporary automotive journalists for its exceptional ride comfort, handling (for its size), and powerful engine performance, solidifying Jaguar's reputation for 'grace, pace, and space'.