SECTION 04         GENERAL SPECIFICATION DATA   (NB For Early Cars !)         STAG

 ENGINE

• Number of cylinders                         8, in 'V' configuration

• Bore of cylinders                              86 mm. (3.385 in.)

• Stroke of crankshaft                        64-5 mm. (2.329 in.)

• Displacement                                   2997 c.c. (182.9 cu. in.)

• Compression ratio . .                       9-0 : I

• Firing order. .                                      

• 1, 2, 7, 8, 4, 5, 6, 3

• Cylinders are numbered from the front of the engine and viewed from the rear to identify banks

• R.H. bank Nos. 1, 3, 5, 7

• L.H. bank Nos. 2, 4, 6, 8

• Valve operation                              Overhead by single overhead camshaft for each bank

•  Main bearings                                 5 steel-backed lead-bronze with lead-indium overlay

•  Connecting rods                            45-ton steel forging.  Horizontally split big-end solid                                                                  small-end.  Fully-floating gudgeon pin

• Big-End bearings                            Steel-backed lead-bronze with lead-indium overlay

•  Pistons                                              Aluminium alloy, solid skirt

• Camshafts                                                                                     

                Single overhead camshaft for each bank

• Drive                           Chain and sprocket from crankshaft

• Timing chains             

• R.H. bank: 9.52 mm. (0.375 in.) pitch x 104 pitches

• L.H. bank: 9.52 mm. (0.375 in.) pitch x 106 pitches

• Camshaft bearings       5 replaceable bearings per camshaft

Tappets                                Inverted bucket type

Adjustment by internal pallets

 Lubrication

• System type                 Wet sump

• Oil pump                        4-lobe rotor-type pump, skew-gear driven from chain-driven jack shaft

• Oil filter                           Full-flow type, replaceable element

• Oil warning-light          Extinguishes at 3 to 5 lb./in .2 (0-21 to 0-35 kg./cm.') oil pressure

COOLING SYSTEM                                                                   

• Water.                 'No loss' system, thermostatically controlled (thermostat opens at 82' C.)

• Pressure               13 lb./in.' (0-91 kg./cm.')

•  Circulation           By impeller-type pump driven through skew gears from jackshaft

•  Fan                      13 blades, 161 in. (418 mm.) dia., incorporating a viscous coupling to                                    reduce noise and power loss at high engine speed

  FUEL SYSTEM                                                                          

 Tank located under luggage compartment floor.  North America Market models incorporate  an evaporative emission control system  

Fuel pump                         

• S.U. electric diaphragm pump (AUF 303)

•  Pressure 2.7 lb./in (0.19 kg./cm.')

• Pressure relief valve allows surplus fuel to return to tank     

Carburetters                                                                             

• Twin sidedraught Stromberg 175-CDS.

•  Needles        B.1AQ

•  Springs        Blue

Carburetters (North American markets)                               

• Twin sidedraught Stromberg. 175-CDSE

CLUTCH

•  Type                                          Laycock diaphragm type, single dry plate.

•                                                   Hydraulically operated release mechanism Clutch driven plate:

• Diameter                                     9 in. (228.6 mm.)

• Facing material                            Raybestos 1133c

• Number of damper springs          6

• Clutch release bearing                  Ball journal

 GEARBOX

Manual                                                                                         

4 forward speeds and 1 reverse.  Synchromesh on all forward gears

                              Top               3rd             2nd               I st             Rev.

Gear ratios            1.00 :1         1.386:1       2.10:1           2.995: 1     3.369:1

Overall ratios        3.70: 1         5.13:1          7.77: 1       11.08:1         12.47:1

Overdrive (Optional)                                                           

Laycock de Normanville, operative on 3rd and top gears

Overall ratio      0.82 : 1I

Automatic (Optional)                                                          

Borg-Warner type 35

                                        3rd                    2nd              Ist              Rev.

Gearbox conversion     1.00-2.30      1.45-3.34        2.39-5.50      2.09-4.81

 Overall ratio                 3.70-8.50     5.37-12.37    8.85-20.40      7.75-17.80 

Maximum change-up speeds (full throttle, i.e. seven-eighths of pedal movement)

 Gear                             Road Speed

1st to 2nd                       34 to 42 m.p.h. (54 to 67 k.p.h.)  In relation to load

2nd to 3rd                       64to7Om.p.h.(102 to ll2 k.p.h)    In relation to load

 Pre-set down-change speeds ('kick-down')

 Gear                               Road Speed

3rd to 2nd                              56 to 66 m.p.h. (90 to 105 km.p.h ') In relation to load

3rd to 2nd or 2nd to 1st        24 to 30 m.p.h. (38 to 48 km.p.h.)   In relation to load

FINAL DRIVE                                               

Hypoid bevel gears

Ratio                       3-7: 1 (37: 10)

EFFECTIVE GEARING (MANUAL TRANSMISSION)

 Engine speeds (r.p.m.) at Road speeds of:

                                                           TOP +O/D    TOP    3rd+O/D    3rd        2nd        Ist         Rev.

10 m.p.h.                                                    432        527      599           730       1,107      1,580     1,178

10 km.p.h.                                                  279         328     372           454       687         980        1,102

                     (Goodyear G.800 185/70 HR-14 tyres)

                                                         TOP +O/D    TOP    3rd+O/D    3rd        2nd        Ist         Rev.

10 m.p.h.                                                     414      505     578            705      1,070     1,530     1,720          

10 km.p.h.                                                  258       314     359            438       665        950       1,070

                     (Micbelin XAS 185 HR-14 tyres)

 ROAD SPEED DATA

Road speeds at 1,000 r.p.m. engine speed:

In Top gear                   19 m.p.h. (30.4 km.p.h.)                     

In O/D Top gear           23.1 m.p.h. (37 km.p.h.)                       

(Tyres Goodyear G.800  185/70 GR- 14)

In Top gear                   19.8 m.p.h. (31.6 km.p.h.)                    

In O/D Top gear          24.1 m.p.h. (38.5 km.p.h.)                      

( Tyres Michelin  XAS 185 HR-14)

STEERING

  Make/type                  Alford and Alder. Rack and pinion (power-assisted). Steering-column incorporates an anti-theft locking device.

Steering-wheel diameter                          16 in. (407 mm.)

Steering-wheel turns (lock to lock)         4

Steering-Column adjustment                     4 in. (102 mm.) approx. axially

                                                                              2 in. (51 mm.) approx. vertically

BRAKE SYSTEM

Front                                      Caliper disc brakes

                                                 Disc diameter: 10.625 in. (270 mm.)

                                                Lining material: DON 225 FG

Rear                                       Self-adjusting drum brakes

                                                9 in. dia. x 2.25 in. wide (228 mm. x 57 mm.) of  leading and trailing shoe type

                                               Lining material: DON 202 GG

                                                 Wheel cylinder diameter 0.6875 in. (17.46 mm.)

Operation                          

Divided hydraulic system operating front and rear brakes independently through a tandem   master cylinder  Pressure differential switch operates warning  lamp on facia Servo Direct-acting servo providing 3 : I nominal boost ratio   

Front lining area             24 in sq (150 CM sq)

 Rear ling area                 78 in sq (504 CM sq)

 Total lining area           102 in sq (658 CM sq)

Front swept area           220 in sq (1420 CM sq)

Rear swept area           127 in sq (819 CM sq)

Total swept area           347 in sq(2240 CM sq)

 Hand brake                     Centrally mounted lever operates rear brakes  mechanically 

 WHEELS

 Steel disc type           5J, flat hump, safety ledge rims

Wire wheels                5 1/2 J flat ledge rims

TYRES                                                                                         

Goodyear G.800, 185/70 HR-14 or Michelin XAS, 185 HR-14

Pressures: Front             26 lb./in.2 (1-82 kg./CM.2)

Rear                                     30 lb./in.2 (2-10 kg./cm.2)

 ELECTRICAL EQUIPMENT

Spark plugs . .               Champion N-1 1Y

Gap                                   0.024 to 0.026 in. (0.625 to 0.660 mm.)

Battery                             12-volt

Capacity                         56 amp.-hr. at 20-hour rate

Negative earth

Alternator                      Lucas II AC ventilated type

                                           540 watts output. Vee belt drive

Distributor                      Lucas type 35 D8, with centrifugal and vacuum  automatic advance control

Coil                                    Lucas type 16C6, 6-volt, incorporating ballast resistor

Starter motor                 Lucas type M418G, pre-engaged type

Wiper motor                     Lucas type 16 W, 2-speed. Self-parking

RECOMMENDED HYDRAULIC FLUIDS

Clutch and Brake Reservoirs: Lockheed Super Heavy Duty Brake Fluid.

Where this proprietary brand is not available other fluids which meet S.A.E. J.1703 specification may be used.

ANTI-FREEZE SOLUTIONS

Only solutions which meet B.S.I. 3152 specification may be used.

CAPACITIES

• Fuel tank                                                         14 gal. (16.9 U.S. gal., 63.5 litres)

• Engine sump                                                    8 pints (9.-6 U.S. pints, 4.5 litres)

• Engine sump (drain and refill)                              8 pints (9.6 U.S. pints, 4.5 litres)

• Engine sump (drain and refill with filter change)    9 pints (10.9 U.S. pints, 5.1 litres)

• Engine oil filter                                                  1 pint (1.2 U.S. pints, 0.56 litre)

•  Gearbox (from dry)                                            2.25 pints (2.7 U.S. pints, 1.28 litres)

• Gearbox and overdrive (from dry)                         3.75 pints (4.5 U.S. pints, 2.13 litres)

• Automatic transmission                                     11.5 pints (13.9 U.S. pints, 6.5 litres)

•  Rear axle (from dry)                                           2 pints (2.4 U.S. pints, 1.13 litres)

• Power steering reservoir                                     1.25 pints (1.5 U.S. pints, 0.7 litre)  

• Cooling system (with heater)                               18.5 pints (22.3 pints, 10.5 litres)    

 CHASSIS DATA

 Wheelbase                               8 ft. 4 in. (2540 mm.)

 Track: 

• Front                               4 ft. 4.5 in. (1330 mm.)

• Rear                                 4 ft. 4.875 in. (1342 mm.)

Wheel alignment (unladen): 

• Front                                   1/16th to 1/8th  in. toe-in (I.6 to 3.17 mm.)

• Rear                                     0 to 1/16th in. toe-in (O to 1.6 mm.)

Camber and castor angles                              Camber               Castor                King-pin inclination

Basic unladen weight                                           1.25 +                    2                            10.25

Unladen weight (including automatic trans-                                0.5 +                     2                             11

 mission or overdrive and/or air conditioning, hard top) . .                

Ground clearance (4-up condition)                   5.5 in. (140 mm.) (exhaust pipe)

Turning circle                                                      34 ft.  I in. (10.4 m.) (between kerbs)

 OVERALL DIMENSIONS

Length :                                    14ft 5.7 in (4420mm)

Width :                                        5ft 3.5 in  (1612mm)

Height (unladen):                  

    Soft top erect                        4ft 1.5 in (1258mm)

    Hard top                                  4ft 1.5 in (1258mm)

    Top of screen                        4ft 0 in (1220mm)

WEIGHTS (approx.)                                            

Dry (excluding extra equipment)                                                            2,600 lb. (1180kg.) 

 Basic unladen (including tools, fuel, oil, and water)                           2,770 lb. (1255 kg.)

Kerb (including optional extras, automatic trans-                                                2,970 lb. (1350 kg.)

mission or overdrive, air conditioning, hard top)                 

Maximum gross vehicle weight                                              3,750 lb. (1700 kg.)

Maximum trailer weight

(trailer equipped with  brakes)                                                                  2,800 lb. (1270 kg.)

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