Studebaker Truck stalling

[JimS]

We have several Studebaker trucks at the ranch. Im told this is an AA model. We were planning on taking it to a parade Sunday, but it stalls when braking hard or braking hard going downhill.

My coworker theorizes a carburation issue; that there is a problem with the floats. Its all original.

Is he on the right path? What might be other causes?

Thanks.

 

[rustcollector]

If this truck has a vacuum assist brake, you may have a vacuum leak?

 

[Janicholson]

An ignition wire could be broken causing a disconnect internally when braking. Usually fuel issues happen 30 seconds or more after braking/hill happens. if it delays then it coud be fuel. Either tank obstruction, or float. Make sure the carb is not loose on the manifold. Jim

 

[Janicholson]

Assuming this is a Duce and A Quarter army truck they did have vacuum assist brakes. S a sevier booster leak can be detected while not moving! Jim

 

[Janicholson]

image of engine
Hercules

 

[Geo-TH,In]

That's what I was thinking too.

 

[Tramway Guy]

A short in brake light circuit??