Four cylinders cast en bloc with detachable cylinder head. Bore 69.5 mm.;
stroke 105 mm.; total cylinder capacity 1595 c.c.; British R.A.C. Rating:
11.98 h.p. Three crankshaft bearings; four camshaft bearings. Vibration
damper integral with fan driving pulley.
Six cylinders cast en bloc with detachable cylinder head. Bore 65.2 mm.:
stroke 105 mm.; total cylinder capacity 2100 c.c.; British R.A.C. Rating:
15.81 h.p. Four crankshaft bearings; six camshaft bearings. Vibration
damper integral with fan driving pulley.
The engine is mounted at three points on live rubber blocks, one at either
side at the front of the engine' and the third at the freewheel housing,
thus absorbing all vibration at its source and giving unusual smoothness
at all speeds.
Overhead inlet valves operated by followers and push rods from camshaft'.
Side exhaust valves operated directly by rockers from camshaft.
Valve gear is totally enclosed and lubricated under pressure. Camshaft
driven by duplex chain from crankshaft, automatically adjusted by hydraulic
Lubrication is full pressure from gear type oil pump to all bearings.
There is an external pressure filter mounted on the engine in addition
to a gauze scavenge filter in the sump which can be withdrawn for cleaning
(see Page 31) A pressure gauge is fitted on the right-hand side of the
instrument panel. The sump capacity is 10 pints (5,5 litres) on "60"
and 15.5 pints (9 litres) on "75."
Cooling is accomplished by a water pump assisted by a fan, driven by a
rubber belt from the crankshaft. Temperature controlled by thermostat.
Total water capacity is 20 pints (11,5 litres) on "60" and 24
pints (13,5 litres) on "75"
Ignition is by battery and coil. Distributor has both centrifugal and
vacuum advance and retard. Battery is on right-hand side beneath rear
seat (see Fig. 12 Page 34).
The petrol tank is at the rear of the chassis beneath the boot floor and
is delivered to the Solex carburettor by an electric S.U. mounted on the
scuttle. A reserve petrol tap is provided, electrically controlled by
a switch on the instrument panel (see page 7). The total capacity is 11
gallons (50 litres) reserve of approximately 1 gallon (4,5 litres).
Single-plate pattern, operated by push rod and cable (see Page 64).
In unit with engine. Central change speed lever. Single helical constant-mesh
gears with silent 2nd and 3rd gears. Synchro-mesh on top and 3rd.
Top 4.70-1; Third 7.00-1; Second 9.60-1; First 15.85-1; Reverse 18.95-1.
"Rover" type, incorporated in gearbox and. controlled from the
facia board. (see Page, 23).
Hardy-Spicer open propeller-shaft.
Spiral bevel pattern. Ratio 4.70-1.
Front: Independent 'coil springs with Armstrong shock absorbers forming
upper suspension links.
Rear: Semi-elliptic leaf springs controlled by Monroe hydraulic dampers.
Any excessive side-sway or roll is checked by an anti-roll torsion bar
at the front.
Foot brake 'applies - Girling Hydraulic Non-Servo brakes on front wheels
-and Girling Non-Servo at rear
Hand brake applies rear wheel brakes only for parking purposes. Reservoir
for hydraulic system mounted on right-hand side of scuttle (see Page 39).
These can be detached from the hubs by unscrewing five nuts. For tyre
sizes and pressures see Page 70.
Lucas 12-volt starting and lighting set is fitted, 'the dynamo being driven
by adjustable belt (see Page 66).
HOME MODELS: Left-hand side headlamp has dual filament. When dipper
switch on steering wheel is operated right-hand side headlamp is extinguished
completely and primary filament in left-hand side lamp is replaced by
secondary "out-of-focus" filament.
Central fog-lamp operated from independent switch on facia board.
EXPORT MODELS: Dual-filament headlamps. When dipper switch on steering
wheel is operated, primary filaments in headlamps are extinguished and
secondary " out-of-focus" filaments in. both lamps appear. Central
fog-lamp operated from independent switch on facia board.
ALL MODELS: Two reversing lights at the rear of the car come into
operation when reverse gear is selected.
Burman-Douglas re-circulating ball pattern (see Page 4l)
Clayton-Dewandre type. Air drawn from the front of the car is heated by
water circulation from the engine. Its volume is controlled by a fan and
manually operated shutters. The water supply may be cut off by a valve
at the front of the engine at the left-hand side (see Page 67, and Figs.
8 and 10):
Radiomobile type mounted on facia board with "Rover" pattern
central roof -aerial.
Overall length: 171.25-ins. (4 m. 35 cm.).
Overall height: 6-light Saloon 65 ins. (1 m. 65 cm.); 4-light Saloon 62
ins. (1 m. 57 cm.).
Overall width: 63 ins. (1 m. 60cm.).
Ground clearance: "60": 7.625ins. (19,4cm.); "75"
: 7.875 ins. (20 cm.).
Wheelbase: llO.5 ins. (2 m. 80cm.).
Front track: 5.1 %6 ins. (1 m. 30 cm.).
Rear track: 54.1875- ins. (1 m. 39,5 cm.).
Turning circles 37 ft. (11 m. 27cm.).
"60" 6-light Saloon: 26.5 cwt. (1.350 Kg.).
"60" 4-light Saloon: 26.25 cwt. (1.335 Kg.).
"75" 6-light Saloon: 27.75cwt. (1.410Kg.).
"75" 4-light Saloon: 27.5-cwt. (1.400 Kg.).
CONTROLS AND INSTRUMENTS