Technical - Valve and Ignition Timing



Ignition Timing

The ignition timing setup has been manufactured so that it can't be set wrongly. Points just opening at top dead centre - NOTE - this applies if the right distributor has been fitted correctly (as it can only fit one way).

Valve Timing

1946-1949

Inlet Opens BTDC

15°

Inlet Closes ATDC 60°
Exhaust Opens BTDC 55°
Exhaust Closes ATDC 20°
1949-1956
Inlet Opens BTDC 45°
Inlet Closes ATDC 70°
Exhaust Opens BTDC 65°
Exhaust Closes ATDC 35°

E-mail: bsmc@classicglory.co.uk

www.classicglory.co.uk