Riley One-Point-Five Mk1 1957-60
See specifications below illustration
Page 117a
Riley One-Point-Five Mk1 1957-60 specifications
Engine: 4 Cylinder inline water cooled
Displacement: 1,489cc
Bore & Stroke: 73.02mm x 88.9mm
Valves: Pushrod/overhead
Compression ratio: 8.3 to1
Carburettors: two SU H4's
Fuel pump: electrical (sit. in boot)
Max Power: 68bhp at 5,400 rpm
Performance: Maximum speed: 74 mph
Acceleration: 0-50 mph 12secs
Overall fuel consumption: 28mpg
Construction: Unitary steel body
Brakes: Girling hydraulic, Front: 9in drums, Rear: 8in drums
Friction lining area:
Transmission: (MGA) 4-speed manual, synchromesh on 2nd, 3rd and top gears
Clutch: 8in Borg & Beck
Propellar Shaft: Hardy Spicer open shaft,
Final Drive: live axle, hypoid bevel gear
Wheels: Bolt 14in disc 5 x 14 crossply tyres
Steering: Rack and pinion
Camber: 0.75º
Steering wheel: 2.6 turns lock to lock
Turning circle: left 32ft 6in, right 33ft in
Suspension Front: independant torsion bars Rear: Live axle, semi-elliptic leaf spring, hydraulic lever arm shock absorbers

Wheelbase: 7ft 2in
Track - front: 4ft 3in
Track - rear: 4ft 2.25in
Overall length: 12ft 9in
Overall width: 5ft 1in
Overall height: 5ft
Ground clearance: 6in
Unladen weight: 18.4cwt
F/R weight ratio: 57/43

F uel tank:
7 gals
Engine Oil: 8 pints
Gearbox Oil: 5 pints
Cooling: 13 pints
Rear axle: 1.75pints

Production (Longbridge)
MkI & MkII 1957-1965: 39,568