Today's generation of mechanics may know a lot about fuel injection but may not have the "old timer" experience for rebuilding carburetors. I really don't mean for this to sound negative or insulting but the carburetor in the picture should be familiar to a carburetor rebuilder. Let me rephrase that, your rebuilder should easily be able to answer your questions, show you the part that is damaged and advise you on how much it will cost to repair it.
If you are looking to rebuild this carburetor yourself, there is a lot of information in this forum and members who are willing to help.
The tube to the left, in your picture, is the very top of the power piston. It is enclosed (surrounded) by the main well support. When the support well support is carefully removed from the air horn assembly, there is another tube (not visible in your picture) that is soldered (maybe pressed) into the air horn. The power piston is the tube on top shown in the attached picture. It can be lifted out with your fingers when the well support is removed. Both tubes can be damaged or bent by carelessness or by disassembly by a novice like me.
The power piston can be replaced BUT there may be differences in the shape, length and part number. Your donor carburetor may need to be the same model number. Here again, your carburetor rebuilder should know and be able to answer your questions.
Last edited by buoymaker; 04/28/20212:54 AM.
"Adding CFM to a truck will only help at engine speeds you don't want to use." "I found there was nothing to gain beyond 400 CFM."
