Austin A55 Mark I (1957-58)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
| Bore & Stroke | 73.025mm x 89mm |
| Displacement |
1489cc
|
| Firing order | 1,3,4,2 |
| Oil pressure (hot) |
50 lb./sq. in.
|
Fuel Supply
| Carburetor | Zenith 30VIG10 |
| Choke |
27
|
| Main |
72
|
| Compensating |
95
|
| Slow running |
50
|
Valving
| Intake tappet clearance |
0.015″ (hot)
|
| Exhaust tappet clearance |
0.015″ (hot)
|
| Valve-timing indication | Marked teeth |
| Intake valve opens | 5° BTDC (TDC at 0.020″ clearance) |
Ignition
| Breaker gap | 0.014″ – 0.016″ |
| Plug gap | 0.018″ |
| Ignition timing indication |
Pulley and pointer
|
| Ignition timing |
10° BTDC (Premium)
|
Clutch
| Clutch type | Borg & Beck |
| Clutch linings |
Brakes
| Brake type |
Girling
|
| Brake linings |
1¾” x 8.655″ x (3⁄16” – 13⁄64“)
|
Wheel Alignment
| Toe-In | 0″ to 1⁄8“ |
| Camber | 1° |
| Caster angle | 1½° |
| King pin angle |
7°
|
