Re: Carburettors on 1948 22nd Series Export Six Touring Sedan

Posted by BigKev On 2010/1/5 17:27:38

I dont think there was an actual button under the accelerator pedal. Rather when the pedal was pressed all the way down the throttle linkage activated a electrical switch on the carburetor that engaged the starter. When the engine started, the engine vacuum moved a metal ball inside the switch that broke the circuit and disengaged the starter.

If the starter was re-engaging while the motor was running then either the metal ball inside the switch is sticking, or their is a vacuum leak near the switch.

As far as the choke, the carter carburator used a bi-metal spring that adjusted the choke in response to temperature. The spring is contained inside that black "Climate Control" knob that is familiar on the side of most Carters of the period.