Sunbeam Mark Iii (1954-58)

Sunbeam Mark Iii (1954-58)

The Car

Coming soon

The Specs

Below are the technical specifications and any performance numbers we could get.

Engine

Bore & Stroke 81mm x 110mm
Displacement 2267cc
Firing order 1,3,4,2
Oil pressure (hot)
30-50 lb./sq. in.

Fuel Supply

Carburetor Zenith D136
Venturi 1316
Main Jet L1840
Metering 0.056
Idle tube
0.040
By-pass
70/75
H/S bleed
60
Pump
75
Economy
0.28

Valving

Intake tappet clearance 0.007″ (hot)
Exhaust tappet clearance 0.009″ (hot)
Valve-timing indication Timing gears
Intake valve opens 19° BTDC

Ignition

Breaker gap 0.014″ – 0.016″
Plug gap 0.028″ – 0.032″
Ignition timing indication Fan pulley
Ignition timing TDC

Clutch

Clutch type Borg & Beck
Clutch linings Mintex M19

Brakes

Brake type Lockheed
Brake linings M11 or M20

Wheel Alignment

Toe-OUT 18” (Laden to gap gauges)
Camber +0° 45′ ± ¼° (Laden to gap gauges)
Caster angle +4° 41′ (Laden to gap gauges)
King pin angle 5° 15′ ± ¼° (Laden to gap gauges)