greyghost
Well-Known Member
I'm working on a 1406 I took off my '79 300 parts car. One of the floats had fuel in it. I ended up buying the floats separately. They didn't come with the Edelbrock rebuild kit I got from O'Reilly's. Both of my primary jets were seized and the screw driver slot stripped out. The secondaries came out OK. I bought a "Speed-Out" screw extractor which, shockingly, failed miserably on the first attempt at removing a primary. The screw extractor end of the bit I used, felt like the flutes were cut at the wrong angle when I checked them with my fingernail. I was using a De Walt 1/4" electric impact. So I did not go at it full bore. I was hoping that a slow controlled hammer action would help. It did not. The extractor just smoothed out the brass into a tapered hole. I ended up using a 1/4" left hand twist drill bit which did get the brass out and I was able to restore the thread which appears to be a standard 5/16-18 NC. (I couldn't find it anywhere online what the thread size was! I ended up gauging it off the secondaries!) Now, in the process of drilling out the brass, I kissed the aluminum bottom of the hole where the jet seats. Is the carb now junk or can I clean up the seat using a 1/4" bottom drill or end mill by hand? I know this changes the height of the jet and I'm not sure how it affects the rod. Thoughts? Opinions?