Target Audience:
Owners and independent specialists focusing on classic Rolls-Royce and Bentley vehicles, requiring in-depth electrical system knowledge.
Primary Focus:
Detailed electrical schematics, crucial for troubleshooting and maintaining the complex electrical systems of these luxury vehicles.
Value Proposition:
Essential resource for diagnosing and repairing electrical faults, ensuring the proper functioning of all vehicle systems.
Vehicle Variants Covered:
Rolls-Royce Silver Shadow (including Long Wheelbase Saloon), Rolls-Royce Corniche, Bentley T Series, Bentley Corniche
Estimated Page Count:
Extensive (exact count not specified, but typical for comprehensive wiring manuals)
Type:
Workshop Manual / Wiring Diagrams
Format:
Likely Printed or Digital (PDF) - specified as 'Wiring ELECTRCAL Manual'
Electrical Systems:
Complete electrical system diagrams, wiring harnesses, component locations, circuit descriptions, fault finding for all specified models.
Lighting Systems:
Headlights, taillights, interior lighting, auxiliary lighting circuits.
Ignition Systems:
Ignition coil, distributor, spark plug wiring, related circuitry.
Starting Charging Systems:
Starter motor, alternator/generator, battery circuits, voltage regulation.
Instrumentation Gauges:
Speedometer, tachometer, fuel gauge, temperature gauge, oil pressure gauge, warning lights, and their respective wiring.
Accessories Controls:
Wipers, washers, horn, electric windows, electric seats, radio, climate control, central locking (if applicable), and associated wiring.
Fuel System Controls:
Fuel pump operation, electric choke (if applicable), early fuel injection system wiring (if applicable to serial number range).
Wiring Diagram Interpretation:
Detailed explanation of diagram conventions, wire colors, and connector identification.
Troubleshooting Methodology:
Systematic approaches to diagnosing electrical faults based on circuit analysis.
Component Identification:
Locating specific electrical components within the vehicle.
Fuse Relay Identification:
Location and function of fuses and relays within the electrical system.
Depth:
Comprehensive, intended for professional technicians and advanced DIY enthusiasts. Covers detailed circuit tracing and component-level diagnosis.
Digital Format:
If PDF, expect high-resolution scans with clear text and diagrams. Searchable functionality is a common feature.
Print Quality:
High (typical for official workshop manuals, ensuring legibility of diagrams and text).
Binding:
Spiral bound or perfect bound (for printed versions) to allow for flat opening and ease of use.
Paper Quality:
Durable, often gloss or semi-gloss paper to protect diagrams and text from shop environments.
Displacement:
6.75 Liters (412 cu in)
Bore X Stroke:
104.14 mm x 99.06 mm (4.1 x 3.9 in)
Compression Ratio:
Approx. 8.0:1 to 8.5:1 (depending on year/variant)
Horsepower Approx:
220-250 bhp (net) (varies by year and specific engine tune)
Torque Approx:
400-450 lb-ft @ 2500 rpm (varies by year and specific engine tune)
Carburetion:
Twin SU Carburetors (e.g., HD8) or later Bosch D-Jetronic Fuel Injection for some models/years.
Fuel Requirement:
Premium Unleaded Gasoline (Octane rating dependent on era, typically 95 RON or higher).
Cooling Type:
Water-cooled, pressurized system.
Ignition Type:
Breaker points ignition (early models) or electronic ignition (later models).
Transmission Type:
3-speed automatic (General Motors Turbo-Hydramatic 400 - TH400)
Optional Transmission:
None for this generation; TH400 was standard across the range.
Transmission Control:
Column shifter or floor-mounted selector lever.
Transmission Fluid Type:
Dexron III (or equivalent compatible fluid such as Dexron VI for older TH400 applications, consult specific manual for exact recommendation).
Transmission Fluid Capacity:
Approx. 11-12 US quarts (10.4-11.4 Liters) with torque converter.
Wheelbase Standard:
120.0 inches (3048 mm)
Wheelbase Long Wheelbase:
125.5 inches (3188 mm)
Length Silver Shadow:
203.7 inches (5174 mm)
Width:
70.2 inches (1783 mm)
Height:
59.5 inches (1511 mm)
Curb Weight Approx:
4,500 - 5,000 lbs (2041 - 2268 kg) depending on model and equipment.
Tire Size Standard:
235/75R15 (or equivalent radial tire)
Bolt Pattern:
5 x 5.5 inches (139.7 mm)
Safety Structure:
Robust body-on-frame construction with integrated safety cage elements.
Seat Belts:
Lap and shoulder belts (front occupants), lap belts (rear occupants, typically).
Head Restraints:
Generally not standard on early models, introduced as an option or standard on later ones.
Audio System:
Period-correct Blaupunkt or Motorola radios (often AM/FM, some with cassette capability on later models). Aftermarket upgrades common.
ABS:
Anti-lock Braking System (ABS) was introduced as an option on later models, becoming more standard towards the end of the production run.
Climate Control:
Sophisticated automatic climate control system for its era, with integrated heating, ventilation, and air conditioning.
Power Features:
Power steering, power windows, power door locks, power adjustable front seats, power antenna were standard or widely available.
Oil Change Interval:
Typically every 3,000 miles or 6 months, whichever comes first.
Major Service Interval:
Annual service recommended; comprehensive check every 12,000 miles or 12 months.
Engine Oil Type:
API SG or SH, SAE 20W-50 or 10W-40 (consult specific vehicle manual for exact viscosity based on climate).
Engine Oil Capacity:
Approx. 7.5 US quarts (7.1 Liters) with filter.
Coolant Type:
Ethylene Glycol based antifreeze (e.g., Castrol, Havoline) mixed 50/50 with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 (high boiling point, low viscosity).
Electrical System Quirks:
Aging wiring insulation (especially the vinyl loom covering), Lucas components can be temperamental, corrosion in connectors, early self-leveling suspension hydraulics (if fitted) can leak.
Mechanical Common Points:
Hydraulic system for suspension and brakes requires meticulous maintenance, carburetor tuning can be sensitive, engine mounts degradation.
Oil Filter Part Number Example:
Mann-Filter W950/20, Wix 51515 (Verify for specific engine variant).
Marque Legacy:
Rolls-Royce and Bentley are synonymous with unparalleled luxury, craftsmanship, and engineering excellence.
Platform Introduction:
The Silver Shadow platform (and its Bentley T-Series counterpart) replaced the previous Silver Cloud series in 1965.
Silver Shadow Production:
1965-1980
Corniche Production:
1971-1980 (as a distinct model from the Silver Shadow Saloon)
Bentley T Series Production:
1965-1971 (T1), 1971-1977 (T2)
Manufacturing Origin:
Crewe, England
