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Mod | | | Forums66 Topics128,088 Posts1,056,114 Members48,434 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
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#70671 12/27/2006 8:15 AM | Joined: Jul 2006 Posts: 584 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 584 | I am rebuilding my updraft carb at the moment (41 COE stock) and upon dissassembly I came across a beat up looking sleeve in the throat of my carb. Is this factory, or a governer of some sort? It looks like hi-quality cast pot metal, a little rough on a few of the edges, cylindrical, hollow, narrowing the intake somewhat and just sits in the throat, snugly. Overall length is about 2 inch.
What be it? If it is a governer can I/should I remove it? | | |
#70672 12/27/2006 12:44 PM | Joined: Nov 2002 Posts: 2,766 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,766 | The referenced item is the carburetor venturi. The carburetor will not function without it.
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
#70673 12/28/2006 12:20 AM | Joined: Jul 2006 Posts: 584 'Bolter | | 'Bolter Joined: Jul 2006 Posts: 584 | Got it, thanks jon. These ol ones are different than what I'm used to with 60's camaros... | | |
#70674 12/28/2006 1:51 PM | Joined: Nov 2002 Posts: 2,766 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,766 | The carburetor referenced is a Carter BB series. This unit was first designed during 1931 for use on some 1932 vehicles. The design was so ahead of its time that variations of this unit were used by Chevrolet as late as 1964.
The unit is in serious demand by others in the old car hobby, as it may be used as a replacement (with throttle changes) to a great many number of earlier cars and trucks.
The carburetor was produced in three S.A.E. sizes. Chevrolet used sizes 2 and 3. The size 3 units are being retrofitted on supercharged Bugatti's (among others).
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
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