I'm not sure what you mean by "add a second gasket."
Are you talking about stacking two carburetor base gaskets on the intake manifold? What will that accomplish?
Is your throttle linkage getting stuck or something and not returning to full close position when letting off the pedal? Lubricate all points in the system with lithium grease at the pedal and linkages. Make sure your pedal /rod isn't binding at the firewall.
After I swapped to the Carter carburetor, it was not going to the full closed position and the idle was high. I double checked the throttle cable gap and it is not holding the throttle open, there is a gap. My first thought was to cut the linkage rod, but adding a gasket to the bottom of the carburetor would raise it up a little accomplishing the same thing? When idling, I can push on the carb linkage where the idle screw is located and bring the idle down by having the idle screw touch the stop point. But, if I rev it again, the idle will be high again and idle screw is not touching that stop point. So my thoughts have been: 1) shorten the vertical linkage rod so it will pull down a little heavier, 2) add a gasket to the bottom of the carb and raise it, or 3) maybe try a stronger spring. Not sure I have a spring that will work though. None of these options seem too difficult. I'm going to look in my parts bin and see if I have a shorter linkage rod.
~ John in Utah 1946 1/2Ton w/4-speed manual transmission w/1960 235 engine Here We Go Follow in his DITY Bay
- If you think about it, it has been one year ago today!
