Armstrong Siddeley 18-hp (1950-52)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
| Bore & Stroke | 70mm x 100mm |
| Displacement |
2309cc
|
| Firing order | 1,5,3,6,2,4 |
| Oil pressure (hot) | 40 lb./sq. in. |
Fuel Supply
| Carburetor | Stromberg 36 DAA or DBA |
| Choke |
1⁄32“
|
| Main |
0.053″ (with vacuum advance: 0.052″)
|
| Main Dis. L |
1840
|
| Hi-Speed bleed |
68
|
| Idler |
68-75
|
Valving
| Intake tappet clearance |
Hydraulic tappets
(chassis 1812501~ = solid tappets clear (hot)0.006″) |
| Exhaust tappet clearance |
Hydraulic tappets
(chassis 1812501~ = solid tappets clear (hot)0.006″) |
| Valve-timing indication | Camshaft and crankshaft sprockets |
| Intake valve opens | 10° BTDC (chassis 1812501~ = inlet opens 4° BTDC; clear (cold)0.006″) |
Ignition
| Breaker gap | 0.012″ |
| Plug gap | 0.018″ (vacuum advance=0.025″) |
| Ignition timing indication | |
| Ignition timing |
10° BTDC
|
Clutch
| Clutch type | ASM Centrifugal, Single dry plate (Synchromesh: Borg & Beck 9A6G Single Dry Plate) |
| Clutch linings | Newton Dis |
Brakes
| Brake type | Girling (Lim.: Lockheed) |
| Brake linings |
12″d. x 1.656″ x 3⁄16“
|
Wheel Alignment
| Toe-In | 1⁄16″ |
| Camber | 2.5° |
| Caster angle | 1° |
| King pin angle | 7.5° |
