Re: Hot Air Car Intake

Posted by JWL On 2013/3/11 10:28:26

I recall the design of the hot air pick up for the automatic choke as being a length of steel tubing that passes through the exhaust manifold - top to bottom. Then another length of tubing fits into the manifold tubing and is fastened to the choke housing of the carburetor with a threaded connection and nut. This tubing is probably steel. A small amount of vacuum draws heated air into the choke housing to operate the release of the choke. No exhaust gasses should be drawn into the choke.

Perhaps the original tubing that goes through the manifold failed causing exhaust gasses to be sucked into the carburetor, and the top and bottom holes were sealed with the pipe plugs you pictured. With a hot air supply no longer available, an electric activated choke carburetor was fitted. Nothing wrong with an electric choke, I have one on my 115C.

You could get a length of steel tubing, drill holes in the plugs for the tubing to snugly fit into, and then connect this tubing to a conventional choke carburetor. I would leave the electric choke carburetor in place unless it is not functioning or you desire an authentic set up.

I hope this helps.

(o{}o)