I had my exhaust manifold gasket changed. Both manifolds were machined together, but under load I still hear a slight exhaust noise but only under load. Incidentally, these were replacement manifolds machined beforehand so the repair could be completed without waiting for the machine workwork to be done. I had this work done in New England. Recently, I took my 60 to a local dealership with a top tech. He drove the truck and then put it up on the lift. He found the leak at the end of the manifold where the heat riser shaft ends. Clear indication of black residue on the sensor post for the carb fan. We ordered what appears to be an end cap from the Toyota schematic, but it is slightly too big. The part I received is the same for all 60's. Question: Has anyone had to deal with this issue and how did you deal with it? The noise is slight but bothersome. Suggestions, traditional or otherwise, will be appreciated. No, I'm not going to go for a new manifold. The reason I did not not have the manifold gasket work done locally is that no one would deal with it or those who would wanted at least a $2000. cushion. Thanks, N.M.
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