The Stovebolt Site Forums The Shop Area Engine Shop 1946 Carburetor?

What model carburetor was installed on half ton trucks with 216 c.i. engines in 1946? My engine came out of Tonawanda, NY and I want to find out the correct carburetor supplied at that time. I currently have a Carter YF-964S which I don't believe is the correct unit. Anybody know the right answer? Who was the manufacturer and model number?

Carter W1 - 684S -- wrong - this is for 1949

Your YF could be a replacement carburetor (I think a YF might have been a "universal" replacement). Carbking will know for sure.

Correction added later:

1946 carburetors

Carter W1-616S (downdraft) - 3000, 4100, 4400 series
Carter W1-574S (downdraft) - 4502, 6000 series
Carter BB!-517S (updraft) - 5000 series

Thanks!

What is Carbking's website? I'm having trouble finding it.

http://www.thecarburetorshop.com/



Joe

Carter YF 964S was supposedly used as a replacement carburetor for 1932-1962 (with different bases, presumably).

http://www.carburetion.com/CarbNumber.asp?Number=964S

The original carb for 1946 would be a Carter W-1 574s.

ACCORDING TO THE CARTER RECORDS: Carter YF 964s was released as a replacement carburetor for Chevrolet 1937 through 1952. It was never released for 1932~1936 nor was it released for 1953~1962. And it only had one base (throttle body).

Jon.

I corrected my first post above.

The GM Specifications Manual shows the following downdraft carburetors for 1946:

Carter W1-616S (downdraft) - 3000, 4100, 4400 series
Carter W1-574S (downdraft) - 4502, 6000 series

However, as posted by Jon, this Canadian GM document shows the 574S for all vehicles - cars & trucks (GMC & Chevrolet)

Thank you Tim and Jon.

My next question is just how does the choke and throttle cables hook up to this Carter W1-574S carburetor? Matter of fact how would they also hook up to my existing Carter YF-964S? I can't seem to find any illustrations showing how this was done. My current throttle cable is not connected at all and it seems like I'm missing some small parts in order to make the throttle function correctly. An illustration or photo would help immensely to help solve this issue. Does anyone out there have pictures or a link to documentation to help me understand how this is suppose to look like?

Once again, thanks for the link on the Carter W1-574S!!

This is the typical choke/throttle bracket used with the W1 or Rochester Dave.
Tim or Jon may have some different versions of it in their archives:
http://www.pbase.com/dennygraham/image/137737843

dg

I have a 1946 2 ton with a W - 1 Carter. Looked to be the original carb.

When I went to buy a rebuild kit they needed to see the carb to know if it was a YF or not.

The way they told me was that if the accelerator pump rod was round or flat.

My carb's rod was flat. Though I am not sure if that meant if it was a YF or not at this point.

If the tag is missing on a Carter W-1, a knowedgable technician can still identify the carburetor at least far enough to determine the proper kit. The first question is to determine if the pump shaft is round or flat. Carter used round pump shafts from 1932 to 1940, and flat pump shafts from 1941 to 1949.

Depending on the answer, there are two different sets of questions to go from there.

Tim - I forgot about the 616s (fleet carb) when I made my earlier post. They are quite scarce, but not as scarce as someone that actually wants one. I didn't forget the 517s, but since the OP had a YF (downdraft carb), I omitted the 517s (updraft carb).

If anyone is interested in the set of questions, it is pretty easy to figure out from this link:

http://www.thecarburetorshop.com/CarterChevroletW1.htm

Jon.

Thanks for the photo Denny!! That's exactly what I was looking for. Now I know that I'm missing the little brass clamp on the throttle control wire. Someone before me bent the crap out of the cable wire trying to Rub Goldberg the connection and finally disconnected the throttle cable.

Thanks again Tim and Jon for your input helping me define the historically correct carb as a Carter W1-574S, and you know what, I found on Ebay a completely restored 574S from a guy out in CA. So, I bought it!! It's been a good day!! Now all I need is one of those glass gasoline filters to enhance the original appearance.

Those brass stops are avalable from the vendors:
http://www.classicparts.com/1937-59-Choke-Throttle-Cable-Stop/productinfo/89-703/#.VaK6EflViko
$0.49 and $12.00 shipping.

dg

Hey Denny, that linkage picture you posted raises another question for me. Is there a "spacer block" between the intake manifold and the base of the carburetor? Looks like you have a metal one there that is about 3/8" thick. On mine the PO installed a bunch of what looks to be cork spacers. Is this spacer an available item? The guy who I bought the restored Carter unit is just supplying a gasket for beneath the carb.