Humber Hawk Series I (1958-59) And Ia (1959-60)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
| Bore & Stroke | 80.947mm x 110mm (graded bore sizes which vary slightly) |
| Displacement |
2267cc
|
| Firing order | 1,3,4,2 |
| Oil pressure (hot) |
30 – 50 lb./sq. in. at 50 mph
|
Fuel Supply
| Carburetor | Zenith WIA 36 D/D |
| Choke | 28 mm |
| Main | 140 (130, 1959) |
| Main dia. | 016280 |
| By-pass | 97 |
| H/S bleed | 180 |
| Slow running | 50 (0.5 mm) |
| Needle | 2 mm |
Valving
| Intake tappet clearance |
0.010″ (cold)
|
| Exhaust tappet clearance |
0.009″ (hot)
|
| Valve-timing indication | Marks on timing sprocket |
| Intake valve opens |
15° BTDC at 0.014″ clearance
|
Ignition
| Breaker gap | 0.016″ |
| Plug gap | 0.025″ |
| Ignition timing indication |
Marks on fan pulley, pointer on timing cover
|
| Ignition timing |
2° ATDC
|
Clutch
| Clutch type | Borg & Beck Hydraulic Operation |
| Clutch linings |
Brakes
| Brake type |
Lockheed Hydraulic
|
| Brake linings | Mintex M22 |
Wheel Alignment
| Toe-In | 1⁄8” (Note: Toe-in and steering angles with car laden to gap gauges) |
| Camber | +0° 45′ ± 15′ |
| Caster angle | -½° ± 30′ (Series I); +½° ± 30′ (Series IA |
| King pin angle |
8° 15′ ± 15′
|
