We stock a variety of throttle shaft bushings, they are sold by matching inner and outer diameters. In most cases, bushings are an aftermarket repair part and they can't be identified by carburetor type or number and they were never cataloged this way. All of our
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Which bushing do I need for my carb?
We don't know, these are a repair part and have to be matched to your carburetor by sizes. You will most likely need to remove your throttle shaft in order to determine which bushings you should purchase.
How do I match by dimension?
The outer dimension of the throttle shaft should match the inner diameter of the bushing. You'll have to ream the carb bore to fit the outer diameter of the bushing.
Do you sell throttle shafts?
We have a handful of shafts available, you can find them here. These are not listed for any specific carburetor number, you will have to match your existing shaft to be sure you're ordering correctly. Most choke and throttle shafts are not available aftermarket.
My throttle shaft has movement, can this be fixed?
Movement of .010" or more means it's time to repair the throttle body. This can be difficult to measure so estimate anything over 1/32" in sideways movement as a worn bushing. If the throttle shaft itself is worn, you'll need to find a replacement. If the shaft is in good condition but the bore is worn, you can have someone rebush the carburetor bore to tighten up the throttle shaft.
Can I re-bush my carburetor myself?
This isn't something we recommend for the DIYer. You have to ream the bore of the carburetor out to fit the bushings and it's easy to damage the carb. Most carburetor rebuilds will rebush a throttle body even if you don't want them to rebuild the entire carburetors.
Example of a bushing installed on a Holley 1940 throttle body:
Do you sell rebushing kits or reamers?
No we don't. Again, we don't recommend rebushing for a DIYer. We sell individual bushings for rebuilders and mechanics, we don't offer the tools required for installation.
I have fuel leaking around my throttle shaft, does it need to be replaced?
Not necessarily. There should be no fuel in direct contact with the throttle shaft. When a carburetor floods, fuel overflows the throat of the carburetor, runs down, and out around the throttle shaft which is the point of least resistance. If a throttle shaft was totally sealed, it wouldn't be able to move. If you have fuel leaking around the throttle shaft, you'll need to figure out why the carburetor is flooding.