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#75452 - Mon Mar 26 2007 01:52 AM Carter YF Identification...????  
WHO, ME ?  Offline
Shop Shark
Joined: Dec 2006
Posts: 1,193
No.California, Sierra foothill...
HI.....I have the oppurtunity to purchase two Carter YF carbs but I don't have any idea which is the right one (or both) that will fit my 235 engine built in 1955 for my 3100 1954PU.. Here are the numbers..Carter YF L35 1-630 938SA 6-1657 stamped on the float chamber numbers 0-944. The last patent number is 2241655.... The other reads Carter YF CR 6-792 stamped on the float chamber numbers X1538. The last patent number is 2658733....any help would be great on this post I'm always reading how good the Carters are compared with my leakchester B and how hard they are to find.....THANKS, Steve ohwell



#75453 - Mon Mar 26 2007 05:16 AM Re: Carter YF Identification...????  
39 AZ 3/4 Ton  Offline
Shop Shark
Joined: Dec 2006
Posts: 586
Phoenix, Arizona
Let me check mine tomorrow after work and see what the numbers are. I've got one on a 48 235 which I think has a different bolt spacing on the manifold.

I'll post what I find tomorrow evening.


If it ain't broke, take it apart and figure out why!
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#75454 - Mon Mar 26 2007 01:27 PM Re: Carter YF Identification...????  
MikeE  Offline
Shop Shark
Joined: Dec 2003
Posts: 1,377
De Pere, WI
Those don't look like anything on Carbking's list from long ago. Check his site to see what you may have


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#75455 - Tue Mar 27 2007 02:52 AM Re: Carter YF Identification...????  
39 AZ 3/4 Ton  Offline
Shop Shark
Joined: Dec 2006
Posts: 586
Phoenix, Arizona
After checking mine it appears to be a Carter YF-2100S with the last patent number being 2854399. I think that just adds to your confusion.


If it ain't broke, take it apart and figure out why!
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#75456 - Tue Mar 27 2007 03:49 AM Re: Carter YF Identification...????  
WHO, ME ?  Offline
Shop Shark
Joined: Dec 2006
Posts: 1,193
No.California, Sierra foothill...
Man...I thought I had it made with my YF's... I hope somebody can solve this for me. I did take a look at carbkings postings but I don know what I'm looking at...? Steve


#75457 - Tue Mar 27 2007 03:04 PM Re: Carter YF Identification...????  
On the road  Offline
Shop Shark
Joined: Aug 2002
Posts: 849
CA Mountain Desert
There are many Carter YF versions for various engines and years.

The model number on mine is stamped on the flange that connect to the cast iron base.
It's the number followed by and 'S'.

Here are the Chevy YF models from 1932-62:

756S, SA, 787S, SA, SB, 788S, SA, 789S, SA, 964S, 965S, 966S, 967S, 2008S, 2046S, 2100S, 2101S, 3211S


Looks like you got one Model 938SA, but it doesn't list as a Chevy model.


On the road every day...
1952 Truck - 235
1948 Coupe - 261

#75458 - Tue Mar 27 2007 09:59 PM Re: Carter YF Identification...????  
TxLaTx  Offline
Shop Shark
Joined: May 2006
Posts: 1,145
Fort Worth, TX USA
Here is a discussion that contains CarbKing's EXCELLENT discussion of YF model numbers and applicability. Bookmark it to your favorites.

I didn't see the carbs you were asking about. You might want to check the carburetor ID page for some help.

Bill

Bill


#75459 - Wed Mar 28 2007 03:28 AM Re: Carter YF Identification...????  
desertdog  Offline
Shop Shark
Joined: Apr 2005
Posts: 291
Ariz. desert
Steve - YF3211S is the model supposed to have been marketed as a replacement for mid to late 50's 235's with Rochesters. It has an auto. choke. I have no way to check this info, but that's what most sellers say. I have run one on a 235 & it worked OK for me. The 4 digit # followed always by an 'S' is what most guys use to ID them. Doug


#75460 - Wed Mar 28 2007 04:56 AM Re: Carter YF Identification...????  
WHO, ME ?  Offline
Shop Shark
Joined: Dec 2006
Posts: 1,193
No.California, Sierra foothill...
Well stick a fork in me I'm done...new info. as follows on one carb the number 938S with the letter C in a circle...cast iron section the number 1-630 and 2-11/16 between bolt holes and 1.5"hole...the other carb looks exactly the same but for Carter YF and the C & R both of which are in circles and no "s" numbers stamped on the carb.? Steve


#75461 - Wed Mar 28 2007 02:35 PM Re: Carter YF Identification...????  
steveg  Offline
Shop Shark
Joined: Feb 2000
Posts: 543
Bridgewater,NJ, USA
Steve..I did a search on YF 938S and there is one thread on that model. However, it was in Spanish (no kidding)...Goggle translated it and it was a repair thread on that model 938S. Unfortunately it doesn't cite an application.


Steve G.
--------------
1942 Chevrolet 1/2-Ton Pickup Truck


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