Morris Isis (1955-56)
The Car
Coming soon
The Specs
Below are the technical specifications and any performance numbers we could get.
Engine
| Bore & Stroke | 79.38mm x 88.9mm |
| Displacement |
2639.4cc
|
| Firing order |
1,5,3,6,2,4
|
| Oil pressure (hot) |
45 lb./sq. in.
|
Fuel Supply
| Carburetor | SU type H4 |
| Rich | CS2 |
| Standard | 7 |
| Weak | No. 6 |
Valving
| Intake tappet clearance |
0.015″ (cold)
|
| Exhaust tappet clearance |
0.015″ (cold)
|
| Valve-timing indication | Figure ‘I’ on flywheel |
| Intake valve opens | 5° BTDC with 0.0234″ tappet clearance |
Ignition
| Breaker gap | 0.014″ – 0.016″ |
| Plug gap | 0.024″ – 0.026″ |
| Ignition timing indication |
0.2″ on periphery of crankshafts pulley
|
| Ignition timing |
6° BTDC
|
Clutch
| Clutch type | Borg & Beck 9″ Single Dry Plate |
| Clutch linings | Wound yarn ‘Borglite’ lining |
Brakes
| Brake type |
Lockheed Hydraulic 10″ drums
11″ drums from chassis No. 4566 |
| Brake linings |
10″ drum: Ferodo M20 1¾” x 9.42″ x 0.198″
11″ drum: M20 2.25″ x 10.28″ x 0.198″ |
Wheel Alignment
| Toe-In | 1⁄8“ |
| Camber | ½° |
| Caster angle | 3° |
| King pin angle | 8¼° |
