Rover 9

Last updated
Rover 9/20
1926 Rover 9-20 2-seater Tourer (replica bodywork) (7879003304).jpg
1926 two-seater
Overview
Manufacturer Rover
Designer Jack Sangster
Body and chassis
Body style
  • open 2-seater or 4-seater
  • fixed head coupé
  • 4-door Weymann saloon
Dimensions
Wheelbase
  • standard: 94 inches (2,388 mm)
  • de luxe: 99 inches (2,515 mm)
  • super: 104 inches (2,642 mm)
  • Track 48 inches (1,219 mm) [1]
Length132 inches (3,353 mm) [1]
Width63 inches (1,600 mm) [1]
Kerb weight 1,813 lb (822 kg) [2]
Rover 9/20
Overview
Manufacturer Rover
DesignerMark Wild and staff
Production1924 - 1933
Layout
Configuration straight four [1]
Displacement 1,074 cc (66 cu in) [1]
Cylinder bore 60 mm (2.4 in) [1]
Piston stroke 95 mm (3.7 in) [1]
Head materialaluminium alloy crankcase
Valvetrain overhead valves by Duralumin pushrods, chain-driven camshaft [1]
Combustion
Oil system forced lubrication by a gear pump in the sump [1]
Cooling system water pumped through radiator, no fan [1]
Output
Power output 20 bhp (15 kW; 20 PS)
@ 3,000 rpm
Tax horsepower 8.93 [1]
Dimensions
Dry weight329 lb (149 kg) [2]
Chronology
Predecessor Rover 8
Successor Rover 10/25

The Rover 9 is a small car produced by Britain's Rover car company. It had a 1074 cc 9 fiscal horsepower four-cylinder engine. Manufactured from 1924 until 1927 it was first supplemented then replaced by Rover's 10-12 model.

Contents

Engine

A Mark Wild and staff designed 1074 cc water-cooled four-cylinder engine with overhead valves announced August 1924 [1] supplemented then replaced the Rover 8 air-cooled twin and the new vehicle was named 9/20 [3] The new engine with its clutch and gearbox are mounted as a unit to the mainframe at four points. [1] z

Advertised by Rover as "The Nippy Nine" with emphasis on its water coolant circulated by pump, pressure lubricated engine, 3-speed gearbox and silent worm (rear) axle. "Super" models were supplied with rod-operated four-wheel brakes. Steering was by rack and pinion, worm and segment in the more expensive cars. At first the open 4-seater cars had just one door beside the front passenger's seat. [1]

Bodywork

The wheelbase was 104 inches and track 48 inches. The 4-seater sports had a 99-inch wheelbase. [5]

1925 open 2-seater 1933 Rover 10 Special 1925 Rover 9 roadster (3017369975) (cropped).jpg
1925 open 2-seater
The Nippy Nine, dickie seat open 1925 Rover 9 roadster with dickie seat (15133404684) (cropped).jpg
The Nippy Nine, dickie seat open
1925 4-seater tourer 1925 Rover tourer (5119287962).jpg
1925 4-seater tourer
1925 instrument panel
no driver's door 1925 Rover 9-20 (10110487034).jpg
1925 instrument panel
no driver's door

Road test

The test car was the sports model with aluminium pistons, double valve springs, higher gear ratios and a lighter body. The car was considered to run pleasantly and do around 60 mph in top gear. When supplied for export the radiator is given a fan. There were complaints about accessibility for servicing and minor repairs. The engine was thought to be unusually smooth for a two-bearing product even at high speed. The steering wheel shook on rough roads otherwise controls were smooth and even. A final comment was "at the price one cannot fairly grumble at three speeds". [6]

Badge 1926 Rover 9-20 2-seater Tourer (replica bodywork) (7879002198).jpg
Badge

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References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Cars Of To-Day. The Times, Tuesday, Aug 12, 1924; pg. 7; Issue 43728
  2. 1 2 Hough and Frostick, Rover Memories, Allen & Unwin, London 1966
  3. Malcolm Bobbit, Rover P4, Veloce, Dorchester, 2002 ISBN   9781903706572
  4. The Motor Show. The Times, Friday, Oct 17, 1924; pg. 20; Issue 43785.
  5. The Motor Show. The Times, Friday, Oct 09, 1925; pg. 8; Issue 44088
  6. Cars Of To-Day. The Times, Tuesday, Apr 20, 1926; pg. 11; Issue 44250