I guess test drives are for finding issues, so after my last drive I noticed the heat deflector door on the exhaust manifold doesn't seem to close. I'm thinking this is causing additional heat into the carburetor? I believe I have the heat riser spring installed correctly and the deflector door does move freely. I removed the spring and applied heat to it with a heat gun. The spring does shrink smaller and then expands when cooling. When I install the spring and apply heat, nothing moves? I ordered another spring and I'll see if that might work.
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Last edited by UtahYork; 06/24/2026 8:48 PM.

~ John in Utah
1946 1/2Ton w/4-speed manual transmission w/1960 235 engine
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