Model:
Mark 1, Mark 2, 240, 340
Production Years Covered:
1956-1969
Model Codes Mark 1:
XK140-based chassis, often referred to as 'XK150 Chassis' in development
Model Codes Mark 2:
JDN (Right Hand Drive), JDS (Left Hand Drive)
Model Codes 240:
J62/J63 (Right Hand Drive/Left Hand Drive), 2.4 Litre
Model Codes 340:
J64/J65 (Right Hand Drive/Left Hand Drive), 3.4 Litre
Primary Coverage:
Comprehensive service, repair, and parts information for 1956-1969 Jaguar Mark 1, Mark 2, 240, and 340 models.
Scope:
Covers mechanical systems, bodywork, electrical systems, and auxiliary components.
Estimated Page Count:
Varies by specific manual edition, typically hundreds of pages for comprehensive coverage.
Type:
Service Repair Workshop Manual / Parts Manuals
Engine:
Detailed information on XK series engines (2.4L, 3.4L, 3.8L), including disassembly, assembly, tuning, and troubleshooting.
Fuel System:
Carburetters (e.g., SU HD6, Zenith-Stromberg), fuel pumps, fuel lines, and tank servicing.
Cooling System:
Radiator, water pump, thermostat, hoses, and cooling fan maintenance and repair.
Clutch:
Single dry plate clutch inspection, adjustment, and replacement procedures.
Transmission:
Manual gearbox (Moss, Jaguar D-Type 'Constant Mesh' patterns), and Laycock de Normanville Overdrive unit servicing.
Propeller Shafts:
U/J bearings, shafts, and universal joint replacement.
Rear Axle:
Differential, half-shafts, and bearing inspection and overhaul.
Steering:
Worm and roller steering box, kingpins, track rods, and associated components.
Suspension:
Front independent suspension (wishbones, coil springs, telescopic dampers), rear semi-elliptic leaf springs, and Panhard rod.
Brakes:
Girling hydraulic disc brakes (front and rear), brake master cylinder, wheel cylinders, brake lines, and shoe adjustment (where applicable on early models).
Wheels Tyres:
Wire wheels (Dunlop), hub assembly, wheel bearing maintenance, and recommended tyre sizes.
Body Exhaust:
Body panel repair, door mechanisms, window winding, chassis lubrication, and exhaust system layout.
Heating Washers:
Smiths Heater unit, windscreen washer system operation and servicing.
Electrical Instruments:
Lucas electrical components, dynamo/alternator charging system, starter motor, ignition system, lighting, wiring diagrams, and instrument cluster diagnostics.
Maintenance:
Routine servicing, lubrication schedules, tune-ups, fluid changes, and filter replacements.
Repair:
Detailed step-by-step repair procedures for all major mechanical and electrical components.
Troubleshooting:
Diagnostic guides for identifying and rectifying common faults and problems.
Rebuilds:
Comprehensive instructions for engine, gearbox, and differential overhauls.
Depth:
Factory-level technical detail, suitable for experienced mechanics and dedicated enthusiasts undertaking complete restorations and repairs.
Diagrams:
Includes high-quality, detailed diagrams and exploded views for component identification and assembly.
Specifications:
Provides critical torque settings, clearances, timings, and fluid specifications.
Engine Types:
Jaguar XK Inline-6 (2.4 Litre, 3.4 Litre, 3.8 Litre)
Horsepower 2.4L:
Approx. 112-120 bhp (depending on tuning and year)
Horsepower 3.4L:
Approx. 180-210 bhp (depending on tuning and year)
Horsepower 3.8L:
Approx. 220-230 bhp (as fitted to later Mark 2 variants)
Torque 3.4L:
Approx. 200-225 lb-ft
Carburettor Types:
Primarily twin SU HD6, later models might use Zenith-Stromberg CD-series.
Fuel Type:
Leaded gasoline (original specification), suitable for unleaded with additives or hardened valve seats.
Material:
Light Alloy (Aluminum)
Type:
Dual Overhead Camshaft (DOHC)
Manual Gearbox:
Moss 4-speed manual (column or floor shift) with optional Laycock de Normanville overdrive.
Automatic Gearbox:
Optional Borg-Warner DG series 3-speed automatic transmission.
Overdrive Operation:
Engaged electrically via a switch, effectively providing a 5th gear.
Manual Gearbox Oil:
EP 90 Gear Oil (e.g., Castrol EPX 90, Mobilube HD 80W-90)
Automatic Transmission Fluid:
Borg-Warner Type 3 or Dexron II (check specific vehicle manual for definitive recommendation)
Oil Change:
Every 3,000 miles or 6 months (typical recommendation for the era).
Grease Points:
Weekly or monthly lubrication of chassis grease points (e.g., kingpins, steering joints).
Valve Clearance Adjustment:
Every 6,000-12,000 miles (depending on usage).
Engine Oil:
SAE 20W-50 or 10W-30 (for use with leaded fuel; modern equivalents may be used).
Coolant:
50/50 mix of ethylene glycol antifreeze and distilled water.
Brake Fluid:
DOT 3 or DOT 4 hydraulic fluid (check specific master cylinder type).
Engine Oil Leaks:
Common from worn seals and gaskets due to age.
Overheating:
Can occur with original cooling systems; upgrades or thorough flushing are recommended.
Carburettor Tuning:
Requires regular adjustment of SU carburetters for optimal performance and fuel economy.
Suspension Wear:
Kingpins, bushings, and shock absorbers can wear over time, impacting handling.
Heritage:
Jaguar Cars is renowned for its post-war luxury sports saloons and grand tourers, building on a legacy of performance and elegant styling.
Mark 1 Introduction:
Launched in 1955, the Mark 1 was Jaguar's first monocoque construction saloon, featuring a compact design and the XK engine.
Mark 2 Introduction:
Evolved from the Mark 1, launched in 1959 with a larger cabin, improved suspension, and optional 3.4 and later 3.8 litre engines. Became a highly successful and iconic model.
240 And 340 Introduction:
Introduced in 1968 as more affordable variants of the Mark 2, featuring updated styling (integrated bumpers) and revised engine options (2.4L '240' and 3.4L '340').
Production Location:
Coventry, England
Production End Mark 2 Variants:
1969 (for 240 & 340, with Mark 2 production ending earlier)
