Jaguar 2.4 liter models 1935-1948 spare parts catalogue

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🏷️ Basic Information Identification Make: Jaguar Model: 2.4 Litre Years Covered: 1935-1948 Codes Chassis Codes Implied: SS100, XK120 (early variants, some components shared or adapted), Mark IV, Mark V (engine families overlap) Engine Codes Implied: 1810cc OHV Inline-6 (SS Jaguar 1.5L, 2.5L, 3.5L families), 2488cc OHV Inline-6 (later 2.4 Litre variants) 👋 Introduction Market Position Positioning 1930S 40S: Jaguar (as SS Cars initially, then Jaguar) occupied the premium sporting car segment, offering performance and style often at a more accessible price point than direct competitors like Bentley or higher-end Aston Martins. The 2.4 Litre models represented a key part of this strategy, providing a balance of performance and civility. Competitive Analysis Competitors Implied: MG, Triumph, Rover, Wolseley, Alvis, Aston Martin (entry-level models), Riley Key Features Of Vehicles Covered Design Philosophy: Emphasis on sporting performance combined with elegant styling and good value for the period. Often featuredOHC or advanced OHV engines for their class. Powertrain Options: Inline-6 engines, known for their smoothness and power delivery, often featuring twin SU carburettors for enhanced performance. Manual Usefulness Value Proposition: Essential for owners, restorers, and workshops to accurately identify and source original or period-correct replacement parts for these classic Jaguars. Crucial for maintaining originality and ensuring correct fitment. 📋 Manual Details Coverage Areas Primary Coverage: Spare Parts Catalogue Secondary Coverage: Components, Assemblies, Part Identification Page Count Estimated Page Count: 250-350 (variable based on edition and completeness, typical for the era) Manual Type Type: Parts Catalogue / Parts List Language Language: English Format Format: Print (likely bound, potentially loose-leaf for service updates in period) 📖 Manual Coverage Systems Covered Engine Components: Cylinder block, cylinder head, pistons, connecting rods, crankshaft, camshaft, valves, timing gear, oil pump, water pump, manifolds (intake/exhaust), carburettor components, ignition system components (distributor, coil, spark plugs - list specific types and brands if...

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Tags: 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 2.4 liter Car Cars Jaguar Parts Catalogue

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Description

🏷️ Basic Information

Identification

Make:

Jaguar

Model:

2.4 Litre

Years Covered:

1935-1948

Codes

Chassis Codes Implied:

SS100, XK120 (early variants, some components shared or adapted), Mark IV, Mark V (engine families overlap)

Engine Codes Implied:

1810cc OHV Inline-6 (SS Jaguar 1.5L, 2.5L, 3.5L families), 2488cc OHV Inline-6 (later 2.4 Litre variants)

👋 Introduction

Market Position

Positioning 1930S 40S:

Jaguar (as SS Cars initially, then Jaguar) occupied the premium sporting car segment, offering performance and style often at a more accessible price point than direct competitors like Bentley or higher-end Aston Martins. The 2.4 Litre models represented a key part of this strategy, providing a balance of performance and civility.

Competitive Analysis

Competitors Implied:

MG, Triumph, Rover, Wolseley, Alvis, Aston Martin (entry-level models), Riley

Key Features Of Vehicles Covered

Design Philosophy:

Emphasis on sporting performance combined with elegant styling and good value for the period. Often featuredOHC or advanced OHV engines for their class.

Powertrain Options:

Inline-6 engines, known for their smoothness and power delivery, often featuring twin SU carburettors for enhanced performance.

Manual Usefulness

Value Proposition:

Essential for owners, restorers, and workshops to accurately identify and source original or period-correct replacement parts for these classic Jaguars. Crucial for maintaining originality and ensuring correct fitment.

📋 Manual Details

Coverage Areas

Primary Coverage:

Spare Parts Catalogue

Secondary Coverage:

Components, Assemblies, Part Identification

Page Count

Estimated Page Count:

250-350 (variable based on edition and completeness, typical for the era)

Manual Type

Type:

Parts Catalogue / Parts List

Language

Language:

English

Format

Format:

Print (likely bound, potentially loose-leaf for service updates in period)

📖 Manual Coverage

Systems Covered

Engine Components:

Cylinder block, cylinder head, pistons, connecting rods, crankshaft, camshaft, valves, timing gear, oil pump, water pump, manifolds (intake/exhaust), carburettor components, ignition system components (distributor, coil, spark plugs - list specific types and brands if known)

Fuel System:

Fuel tank, fuel lines, fuel pump (type: AC mechanical or SU electric early on), carburettors (SU H-series, Stromberg), fuel filters

Cooling System:

Radiator, radiator hoses, thermostat, fan, water jackets, coolant passages

Exhaust System:

Exhaust manifold, exhaust pipes, muffler, tailpipe

Transmission Clutch:

Clutch assembly (friction plate, pressure plate, release bearing), flywheel, gearbox mainshaft, layshaft, gears, synchromesh rings (if applicable), selector mechanism, clutch hydraulics (master/slave cylinders if fitted)

Drivetrain:

Propeller shaft, universal joints, rear axle casing, differential gears, half-shafts, axle shafts

Suspension Front:

Independent front suspension (if applicable for specific models within the range), kingpins, kingpin bushes, stub axles, wishbones, torsion bars (if applicable), shock absorbers (Armstrong lever arm type common), springs (if applicable), steering arms

Suspension Rear:

Live rear axle, leaf springs (semi-elliptic), shock absorbers (Armstrong lever arm type common), spring shackles, mounting brackets

Braking System:

Front brakes (hydraulic drums), rear brakes (hydraulic drums), master cylinder, wheel cylinders, brake shoes, brake drums, brake pipes, brake fluid reservoir, handbrake mechanism (mechanical linkage)

Steering System:

Steering box (Marles type common), steering column, steering wheel, steering arms, track rods, tie rods, drag link, idler box

Electrical System:

Generator (Lucas dynamo), starter motor (Lucas), battery, ignition coil (Lucas), distributor (Lucas), voltage regulator (Lucas), headlamps, sidelamps, taillamps, stop lamps, interior lights, horn, windscreen wipers, dashboard instruments (ammeter, oil pressure gauge, fuel gauge, speedometer, tachometer), wiring looms, fuses

Bodywork Chassis:

Chassis frame (ladder type common), body panels (steel), doors, bonnet, boot lid, grille, bumpers, windscreen frame, roof structure (saloon/coupe/convertible variants), running boards, internal trim panels, seat frames, windscreen glass, door glass

Wheels Tyres:

Road wheels (wire spoke or pressed steel), hubcaps, wheel studs, lug nuts, tyre specifications (sizes), inner tubes

Accessories:

Heater (if factory option), radio (if factory option), overdrive (if fitted - Laycock or Wilson unit), specific trim pieces, badges

Procedures Included

Part Identification:

Detailed illustration of each part, cross-referenced with part numbers and descriptions

Assembly Breakdown:

Exploded diagrams showing how components fit together within assemblies

Interchangeability:

Indication of interchangeable parts between different models or production periods within the covered range

Obsolescence Notes:

Likely includes notes on superseded part numbers and replacement options

Technical Depth

Depth:

Comprehensive part identification and cataloguing. Does NOT typically include repair procedures, diagnostic information, or torque specifications. Its purpose is to order the correct replacement parts.

📊 Manual Specifications

File Format

Digital Format:

N/A (Original product is print)

Print Quality

Print Quality:

Original factory print quality (may vary based on specific reproduction)

Binding Type

Binding:

Typically bound (hardcover or paperback) or sectioned/tabbed for ease of reference

Paper Type

Paper Quality:

Original paper stock (likely good quality, durable for workshop use)

⚙️ Engine Specifications

Primary Engine

Engine Type:

OHV Inline-6

Displacement:

2488 cc (2.4 Litres)

Bore X Stroke:

76.2 mm x 90.0 mm (approximate, can vary slightly)

Compression Ratio:

Typically 6.7:1 or 7.0:1

Performance

Horsepower Bhp:

Approx. 65-70 bhp at 3,500-4,000 rpm

Torque Lb-Ft:

Approx. 110-120 lb-ft at 2,000 rpm

Fuel System

Carburettor Type:

Twin SU Carburettors (e.g., H-series, H2 or H4)

Fuel Type:

Leaded petrol (Octane rating typically 72-80)

Ignition System

Ignition Type:

Coil and Distributor (Lucas)

🔧 Transmission

Standard

Transmission Type:

4-speed Manual

Optional

Overdrive:

Optional Laycock De Normanville overdrive unit available on some models

Features

Synchromesh:

Synchromesh on 3rd and 4th gears, or sometimes 2nd, 3rd, and 4th depending on specific model evolution

📐 Dimensions

Exterior

Wheelbase:

Approx. 104 inches (2642 mm) for saloon/coupe variants, up to 116 inches (2946 mm) for longer chassis models (e.g., Drophead Coupe variations or precursors)

Track Front:

Approx. 53 inches (1346 mm)

Track Rear:

Approx. 54 inches (1372 mm)

Weights

Curb Weight:

Approx. 2,600 - 3,000 lbs (1180 - 1360 kg), varies significantly by body style

🛡️ Safety Features

Ratings

Crash Testing:

No formal crash testing as per modern standards existed during this period.

Active Features

Active Safety:

Effective hydraulic drum brakes, responsive steering, balanced chassis dynamics.

Passive Features

Passive Safety:

Robust chassis construction, safety glass (though not laminated throughout as standard), sturdy body structure.

💡 Technology Features

Infotainment

Infotainment Systems:

Original systems typically consisted of a dashboard-mounted radio (often optional) and basic analogue gauges. No concept of modern infotainment, navigation, or multimedia.

Driver Assistance

Driver Assistance:

None. Driver assistance features were not a concept in automotive design during this era.

Connectivity

Connectivity Features:

None. Mobile phone integration or data connectivity was not applicable.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000 miles or 6 months (typical for the era). Often specified by engine hours if used for commercial purposes.

Grease Points:

Regular greasing of suspension points, steering linkages, and other chassis lubrication points (weekly/monthly checks recommended).

Ignition Timing Check:

Every 6,000 miles or annually.

Fluid Specifications

Engine Oil:

SAE 30 or 20W-50 (depending on ambient temperature), API SA or SB classification (or equivalent period specification). Zinc content is beneficial for flat-tappet camshafts.

Coolant:

Water with anti-corrosion additive (e.g., a simple silicate-free inhibitor) or a 50/50 mix of antifreeze and water for freeze protection. Copper-brass radiator systems were standard.

Brake Fluid:

Original specification would have been Lockheed Series 2 or equivalent DOT 3 hydraulic fluid. Modern replacements should be DOT 3 or DOT 4 (glycol-based).

Gearbox Oil:

EP 90 gear oil (API GL-4 or GL-5) for the gearbox and rear axle. Some early gearboxes may have used SAE 80.

Chassis Grease:

General purpose lithium-based grease (NLGI #2)

Known Issues

Engine Wear:

Worn valve guides, piston rings, and main bearings are common due to age and mileage. Oil consumption and blue smoke from the exhaust indicate these issues.

Cooling System:

Radiator corrosion, blocked passages, and thermostat failure can lead to overheating. Water pump seals can fail.

Electrical System:

Lucas components are prone to wear. Dynamo output issues, starter motor solenoid problems, and wiring harness degradation (insulation cracking) are common.

Braking System:

Seized wheel cylinders, worn brake shoes/drums, and perished rubber seals in the hydraulic system are frequent issues. Handbrake cable stretch or seizure.

Chassis Corrosion:

The steel chassis and body panels are susceptible to rust, particularly in areas like outriggers, sills, wheel arches, and floors.

Carburettor Issues:

SU carburettors require regular adjustment of jet height and needle position for optimal performance. Leaking floats or worn throttle shafts can cause running problems.

📚 Vehicle History

Brand Heritage

Founding:

SS Cars Ltd. founded by Sir William Lyons and William Walmsley in 1922. Renamed Jaguar Cars Ltd. in 1945.

Model Evolution

Predecessors:

The 2.4 Litre models evolved from the earlier SS Jaguar range, including the SS 1.5 Litre, 2.5 Litre, and 3.5 Litre models. The '2.4 Litre' designation specifically refers to the 2488cc engine, which became prominent in models like the Mark IV and early Mark V, and can be seen as a precursor to the later Jaguar 2.4/3.4 'Mark 1' saloons.

Lineage Connection:

The 2.4 Litre engine family shares much with the earlier 2.5 and 3.5 litre engines, making parts catalogues for this era often overlapping or referencing similar componentry.

Production

Manufacturing Location:

Coventry, England

Wartime Impact:

Production of civilian vehicles was heavily curtailed or stopped during World War II, with SS Cars/Jaguar contributing to the war effort (e.g., aircraft components). Many parts listed in this catalogue would have been produced pre-war or for post-war continuation models.

🏆 Awards & Recognition

Recognitions

Automotive Press Reviews:

Jaguar cars of this era were consistently praised in period automotive press for their style, performance, and handling, often winning awards in touring competitions or for their overall appeal.

Ratings

Reliability Reputation:

While capable and stylish, the marque's reputation for outright reliability was not as high as some mass-market manufacturers, often due to the performance-oriented nature of the engines and the complexity of their design for the time. However, with proper maintenance and restoration, they are robust.