Does anyone know of a machine shop that could add bushings to the center pivots of a twin barrel carb? One of my carbs is worn and air is leaking from the spindle shaft, it's either the spindle, the body, or both that are worn. I can buy a new spindle, but that won't solve the problem if it's the body. I'm exploring my options before creating an expensive desk ornament.
I have managed to insert bushings into my progressive carburettor using a Black and Decker mains drill in a drill press to drill out the holes in the carb body to 8mm stopping short of the throats. I set up the alignment using a 6mm drill bit stationary in the drill first, clamping the carburettor in blocks of wood in a vice.. After drilling I glued in the Oilite bushings with epoxy (mostly as a filler) , using the closed throttle plate on the spindle to ensure the whole thing was aligned. Then filed off the excess length of bushing . Again I felt there was nothing to lose and it cost under £20 to have a go. It has been running much richer at idle since...
