Technical CARBURETOR THROTTLE SHAFT REPAIR

Thank you Ted.

 

Great write up! You could do technical writing for a living!
I just rebuilt a well used 4-Jet using your outline.
I bought my reamers (one for the carb body .40" OD, one for bushing .31" ID) from McMaster-Carr. I also bought some 1/2" bronze rod and turned it in my lathe to make "slip fit" bushings.
Reamed the carb to 3/8" depth. Glued them in place using Loc***e 620 for slip fit applications.
I have 2 more 4-Jets and a couple more Q-Jets that will get the same treatment.
Thanks again!

 

LOL Ken. Actually, I did do technical writing for a living. Part of my job as an automotive engineer was to re-vamp all of the Ford Dynamometer Proceedures when I was at Ford R&E.

Good luck with your carb build. It sounds like you even had to do your own bushings which added another element of challenge to your work. Hope your hot rod runs great.

 

I have done about the same thing Go to your br*** fitting pile and find some fittings that are 1/8 pipe. Drill carb throttle shaft bore and tap for 1/8 pipe screw in the fitting with a little thread locker Cut the fitting flush do this one side at a time take a long bit the size of the shaft and drill the br*** fitting. Using long bit through the carb keeps the hole straight Repeat on the other side if needed. Alot of time the wear is only on one side.

 

Thanks for the tip sunbeam. I'm guessing the side with the throttle linkage will always be the side that gets the most wear.

 

Most of the time the exception seem to be the quadrajet the linkage that opens the secondarys seams to cause a lot of side load.