| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,142 Posts1,056,472 Members48,441 | | 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!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2014 Posts: 924 Shop Shark | | Shop Shark Joined: Apr 2014 Posts: 924 | Here is a picture of three Carter YF carbs I have: Carter YF 2100S, YF 2100S, and YF 938SD . The one pictured on the right is the 938SD and it has a tube above the choke plate/valve. It was rebuilt in '96 by someone who would put a 'certified rebuilt' tracking number sticker on one. The two carbs on the left are YF 2100S models that I am cleaning to use on a 55.2 235(single carb application; I recently found a spare carb). They do not have the tube above the choke plate/valve. Am I missing this tube on both of my YF 2100s? Or is this their design? I noticed my Rochesters also have the tube. Thanks Brad
Last edited by ClaudeTheTruck; 10/02/2014 9:44 PM. Reason: changed "part" to "this tube"
Wrench Fetcher, PhD | | | | | Joined: Jun 2012 Posts: 1,747 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 1,747 | I think that is the vent tube from the float bowel. It helps keep the air pressure in the float bowel at or just under ambient. So the float can do its' job. Check with Carb King to see if I am right. You could make one up but how to secure it would be the trick.
Steve H
| | | | | Joined: Apr 2014 Posts: 924 Shop Shark | | Shop Shark Joined: Apr 2014 Posts: 924 | I won't reveal my source so I don't butcher his terminology, but the Carter YF 2100S carburetors do not have the tube in the air horn that I was questioning. This is based on a later model Carter YF.
So, if anyone finds this post with the same question I had- the YF 2100S does not have the angled tube in the air horn.
Brad
Wrench Fetcher, PhD | | |
|
|
| |
