Bentley & Rolls-Royce Vehicles Service & Repair Manual

- {! E 2 E '- PREFACE This Workshop Manual has been compiled in an endeavour to assist service personnel responsible for maintenance and overhaul, in properly maintaining the high standard of engineeringachievedin the production of Rolls-Royce and Bentley motor cars. The book is copiously illustrated with photographs and orthographic reproductions which are suitably annotated in order to provide quick reference with minimum searching. Although all information contained in the Manual was correct when going to print, modifications which may subsequently developwill be kept up to date by means of Service Bulletins. Information given in the latest Bulletin will supersede that given in the Section of the Manual to which it refers,until such times as the Manual is re-issued with the necessary amendments. lnstructionsfor the maintenance and overhaul of the 52 engine and the Refrigeration Systemsfitted to the Rolls-Royce and Bentley cars are contained in individual volumes. Special Workshop Tools referred to in these publications and the Workshop Manual are listed and illustrated in a further publication. Personnel of Rolls-Royce Service Departments at Hythe Road, Willesden, London N.W.l0, and at Pym's Lane, Crewe, are always prepared to answer queries or give advice on individual servicing problems, but it will assist them if queries are accompaniedby the chassis number of the car. lnformation contained herein applies to the following cars: Rolls-Royce Silver Cloud Silver Cloud Silver Cloud Silver Cloud Phantom V Long Wheelbase II II Long Wheelbase Bentley S1 Sl Long Wheelbase 32 52 Long Wheelbase Continental Sl Continental 52 a N r V) F The following publications are available for reference in conjunction with this Manual: TSD 47I TSD 720 TSD 753 TSD 723 TSD 727 TSD 744 Automatic Gearbox ServiceManual Car Interior Cooling System. Boot Unit Rolls-Royce Silver Cloud lI and Bentley 52 Engine Manual Air Conditioning System. Underwing Unit Workshop Tools Air Conditioning System. O.M.C. Refrigeration Unit

All communications should be addressed to ROLLS-ROYCE LIMITED Pym'sLane,Crewe, Cheshire England Telegrams: RoYcRU cREwE Telephone: Crewe 55155 Telex: 3621 LondonOffice: Conduit Street, London, W.l Subject to any existing rights of third parties, the information contained in this document is the property of Rolls-Royce Limited and should not be copied (in whole or in part) or used for manufacture or otherwise disclosed without the prior written consent of the Company. (This does not preclude use by engine and equipment operators for normal instructional, maintenanceor overhaul purposes.) Published by The Technical Publications Department, Rolls-Royce Limited, Crewe (TSD Publication 729) o oa -l U) { t9 t..' ...t .: li Printed in England by Chorley & Pickersgill Lirnited Leeds

s o CONTENTS GENERAL INFORMATION SPECIAL PROCESSES AIR CONDITIONING LUBRICATION AND MAINTENANCE ENGINE PROPELLER SHAFT AND UNIVERSAL JOINTS BRAKES SUSPENSION, SHOCK DAMPERS, PIVOT PINS AND STUB AXLES REAR AXLE FUEL SYSTEM AND CARBURETTERS ENGINE COOLING SYSTEM ELECTRICAL, IGNITION AND RADIO STEERING CHASSIS FRAME EXHAUST SYSTEM WHEELS AND TYRES Chapter A B c D E F G H J K M N o\ (\ r a F a R BODY

G d) L I Q a I I F U N r v) F

CHAPTER A GENERALINFORMATION SECTIQ N A! A2 l\3 Specification * Sl Cars Specification -; 52 Cars Unified Screw Threads PAGE AI A8 At3

Rolls-Royce Silver Cloud, Silver Cloud ll and Phontom V d Bentley Sl, Bentley 52 ond Bentley Continentol 52 Workshop Monuol CHAPTER A GENERALINFORMATION SECTION AI SPECIFICATION _ SI CARS Engine Type Six cylinders, in line, with overheadinlet and side exhaust valves. Bore 3.750 in. (95.3mm.) Stroke 4'500in. (114'3 mm.) Cubic capacity (piston displacement) 298 cu. in. (4887c.c.) Compression ratio Standard Sl and Long Wheelbase Sl cars 6'6 : I (early) 8.0: I (late) Bentley ContinentalSl cars 7'25: | (early) 8'00: 1 (late) Suspension ofthe engine and gearbox The engine and gearbox are of unit construction. The unit is flexibly mounted on rubber at three points. Cylinder Block Type Monobloc casting, integral with crankcase. Material Cast iron with full length, high phosphorus iron cylinder liners. Phosphor-bronze exhaust valve guides. Cylinder Head Type Detachable, 6-port type Material Aluminium alloy, with nickel chrome steel inlet valve seat inserts F and cast iron inlet valve guides. A Crankshaft F Material Nitride hardened chrome Molybdenum steel. Dynamically balanced. Number of Journals Seven Balance weights Integral with shaft Crankshaft vibration damper Internal. Combined spring-drive and friction-type damper. A1

Chapter A Workshop Monual Rolls-Royce Silver Cloud, Silver Cloud ll ond Phantom V Connecting Rods Type 'H' section.Fully machined and balanced. Material Chrome Molybdenum steel. Big-end bearings Copper, lead-indium lined thin steel shells with 'pre-sized' bores to suit diameter of crankpins. Camshaft Material Case hardened nickel steel Number of journals Four Bearings Four Babbitt lined steel shells Thrust taken Front Drive Helical tooth gears Main Bearings Number off Type Pistons Material Number of rings Valve Gear Inlet valves Exhaust valves Valve tappets Lubrication System General Type High pressure supply Low pressure supply Sump capacity Oil pump Oil pressure relief valveunit Oil filter Eentley Sl, Bentley 52 ond Bentley Continentdl 52 Seven ry Copper, lead-indium lined thin steel shells with 'pre-sized' bores 7 to suit diameter of crankshaft journals. rn 0a = Aluminium alloy, split skirt. Three compression andoneDuaflex oil scraper. Top compression ring chromium.plated. Overhead push rod operated. Dual springs. Gland packingto control lubrication. Side. 'Brightray'heat-resisting faces to prolonglife. Barrel type, flat face. High pressure feed to crankshaft, connecting rod and camshaft bearings and to the distributor drive skew gearing.Dual oil relief valve providing a positive low pressure oil supply to the engine gears and to the hollow valve rocker shaft from which valverockers, pushrods,tappets and cams are lubricated. Pressure throughout 25 lb/sq.in. (approximate) 5 lb/sq.in.(approximate) 2 galls. (Imperial), 2.4 galls. (U.S.A.),9.1litres. Spur geartype with floating intake strainer. Dual type,controlling both high and low pressure feeds. 'British' Full-Flow type A2 -t o :1 ! N) \o

Rolls-Royce Silver Cloud, Silver Cloud ll dnd Phqntom Y Chapter A WorkshopMonual Bentley Sl, Bentley 52 ond Bentley Continental 52 Fuel System : Carburetters * Early 51 cars Two S.U. HD 6 diaphragmtype. Automatic choke for cold rIJ startlng. ; Late Sl and Bentley Continental 51 cars Two S.U. HD 8 diaphragmtype. Automatic choke for cold O E startlng. a Air cleaner Mesh or oil bath Fuel pumps S.U. twin electric type 'L' Fuel tank capacity 18 galls.(Imperial), 2l'6 galls. (U.S.A.), 8l'8 litres. Fuel strainers Main fuel strainer mounted on the side frame member in front of the fuel tank. Small gauzestrainer at the carburetter inlets and in the fuel pumps. Fuel gauge Electric. Registerswhen the ignition switch is 'ON'. Cooling System Coolant capacity 28pints (Imperial), 33.61 pints (U.S.A.), 15.91 litres. Pump Centrifugal Fan Five blades Fan diameter l7fiin. Pump and fan drive 'Vee'-belt Radiator matrix Film type Radiator shutters Fixed Coolant temperature control The pressurised system operated at 7lb/sq.in. applies to Sl refrigerated cars only. The coolant on all Sl cars is circulated by a centrifugal pump. A thermostat valve is fitted to a by-pass flow pipe to direct coolant from the pump back to the engine, by-passingthe radiator matrix when the engine is cold. Temperature indicator This instrument is mounted on the facia and operates when the ignition is 'ON'. Coolant An inhibited solution of EthyleneGlycol (BSS 3150). Propeller Shaft Divided type, having a ball and trunnion universal joint. The shaft is supported in the centre by a flexibly mounted ball race. Rear Axle Type Hypoid bevel gearswith semi-floating half-shafts. 3 Final drive Through a hypoid crown wheel and pinion. ?, Pinion teeth Twelve - Crown wheel teeth Forty-one Ratio Standard Sl cars 3'42: 1 Bentley ContinentalSl cars 2'92: I Oil capacity of casing I $ pints ,43

Chapter A Workshop l4onuol Rolls-RoyceSilver Cloud, Silver Cloud ll ond Phantom Y Bentley Sl, Bentley 52 ond Bentley Continentol 52 Brakes Footbrake Servo-assisted hydrostatic brakes, hydraulic operation on the r front wheels,hydraulic and mechanical on the rear wheels. 3 Handbrake Operates through a mechanical linkage to the rear wheels. 3, Brake shoe linings Mintex M 14 or Ferodo DS2 7 Friction lining area (4 brakes) 240 sq.in. (1548 sq.cm.) 6. Handbrake lever Twist grip barrel type X Servo Motor The servo motor operateson the principle of the dry disc clutch. The lined friction plate is driven from the gearbox output shaft at approximately one fifth of the propeller shaft speed. Lining Ferodo DMS Cam angle S1 cars (early) 52 deg.- single master cylinder. S1 cars (late) 47 deg. - twin master cylinders. Front Hubs General Two taperroller bearinss Wheels and Tyres Wheels Boltedon pressed steel wheels with covering discs. Rim-wheel Well-base rims, 15.000in. x 6.000in. Tyres Standard Sl cars 8.20 in. x 15in, Bentley Continental Sl cars(early) 7.60 in. x 15in. Bentley Continental Sl cars (late) 8.00 in. x 15in. Steering TYPe Power assisted or manual Steering unit Cam and roller Drive Right-hand or left-hand Steering wheel diameter 18in. Steering box gearratio Standard Sl cars 20.6: I Bentley Continental Sl cars 18.7 : t Power assisted S[ cars 18.7 : I Suspension Front Independent, incorporating coil springs, hydraulic shock dampers and torsionrod stabiliser. d Rear Semi-elliptic leaf springs in combination with controllable u hydraulicshock dampers. An axlecontrol rod is fitted which, U together with the road springs, takes the torque and brake reaction. Front shock dampers Rolls-Royce hydraulic double acting. Rearshock dampers Rolls-Royce hydraulic double acting. Controllablethrough a switch on the steering column. A4

Bentley & Rolls-Royce Vehicles Service & Repair Manual

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