GENERAL SPECIFICATION
VALVE TIMING.
[
With valve-rocker clearance set at 0.0165" (0.42 mm.)].
Inlet and exhaust valves to be equally open at T.D.C. on the exhaust
stroke.
VALVE-ROCKER CLEARANCES
(see page 31).
IGNITION TIMING
(see page 31).
Set to fire at 4° before top dead centre (distributor contact points just
opening).
As the advance is fully automatic, the setting is at full retard.
Contact breaker gap should be set at 0.015" (0.4 mm.).
ROAD SPEED DATA
O.D.
Top Top
O.D.
3rd
3rd
O.D.
2nd 2nd
1st
Rev.
Engine Speeds (3.7 axle)
Using
Dunlop Textile
Tyres:
at 10 m.p.h.
412
501
545
664 825 1007 1573 1615
at 10 km./hr.
250
310 340
410
510
620
970
1005
Using Michelin X Tyres:
at 10 m.p.h.
409
498
541 660
820
1001 1563 1605
at 10 km./hr.
...
254
309 336
410
509 622 971
997
Engine Speeds (4.1 axle)
Using
Dunlop Textile
Tyres:
at 10 m.p.h.
455 556
604
736
916
1170 1744 1790
at 10 km./hr.
...
283
345 375
467
579
694 1083
1112
Using Michelin X Tyres:
at 10 m.p.h.
...
452
552
601
731
910
1110
1733 1779
at 10 km /hr.
281 343 373
454
565 691
1077 1105
GEAR RATIOS
O.D.
Top Top
O.D,
3rd 3rd
O.D.
2nd
2nd
1st
Rev.
Gearbox Ratios
...
0.82
1
1.09 1.325 1.65 2.01
3.139 3.223
3.7 : 1
Axle
Overall Ratios
...
3.034
3.7
4.02
4.9
6.1
7.44
11.61 11.93
4.1:1
Axle
Overall Ratios
...
3.36
4.17 4.46
5.44
6.76 8.24
12.87 13.21
7
SPORTS CAR