How does heat get to thermostatic choke?

Posted by vapackard On 2015/4/25 13:00:56

How does heat get to the thermostatic choke (Carter WA I)?
Is the air flowing from the tube through the exhaust manifold and then through the spring, or does the heat merely diffuse into the chamber.? Reason for question: the manifold has rusted through the tube and exhaust crud got into the tube and the control chamber. A temporary solution would be to elongate the tube through the manifold so the opening is remote from the leaking area ,- I think this would work if heat diffuses in the tube, but might not get warm enough if the heated air actually flows through. Comments?