Wooly15 Posted February 5, 2017 Author Share Posted February 5, 2017 Gotcha. Well, time to find someone that knows how to do it. I still don't trust myself . Link to comment Share on other sites More sharing options...
ol' 66 C10 Posted April 24, 2020 Share Posted April 24, 2020 (edited) On 12/14/2016 at 2:32 PM, carbking said: During the rebuild, get the original specifications for the idle tubes in the carburetor. Drill them 0.002 oversize. Make certain the "factory fix" is done in the choke vacuum supply circuit! Make certain that the primary and secondary floats are NOT interchanged. Set the floats to specifications. DO NOT set the idle mixture using a vacuum gauge for the highest vacuum! Should run like a sewing machine. Jon. I know this is an old thread but I'm having the same issue discussed. Does anyone know what is meant by the "factory fix in the choke vacuum supply circuit"? Thanks! Edited April 24, 2020 by ol' 66 C10 (see edit history) Link to comment Share on other sites More sharing options...
carbking Posted April 24, 2020 Share Posted April 24, 2020 Rochester supplied a "kit" consisting of a very tiny bushing, and a modified air horn to bowl gasket. The choke vacuum supply passage in the top of the bowl is milled slightly smaller than the O.D. of the bushing. The bushing is pressed into the choke vacuum supply passage in the top of the bowl. The choke vacuum supply passage in the bottom of the air horn is milled slightly larger than the O.D. of the bushing. The carburetor is reassembled using the new air horn to bowl gasket (the vacuum passage hole has been enlarged to fit over the bushing). Jon. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now