273 Build

toolmanmike said
Been almost a month since an update. The carb I found at the Nats was no good but I have been using it to experiment with different cleaning techniques.
The carb cleaners nowdays don't do a good job and old AFB's are usually pretty corroded. I think they are magnesium and not aluminum so they don't seem to respond to ultrasonic cleaners. I glass beaded 1/2 of the air horn and ultrasonic cleaned the other half. The glass bead turned it dull grey and the ultrasonic half was still corroded..... LOL Mike

On mine, the insides were clean and bright, just the outside was aged.

I used Hot Wheels mag and wheel cleaner and a small brass bristled brush on my original AFB and it took it from the dull dark grey back to aluminum color. I wiped in some thinned clear engine paint to seal the pores after it dried. I was quite happy with the results.