Carb application

[Canadian PB Kid]

Hello, I have this Carter carb that is similar to the one that fits on my Plymouth PB, The major difference is the space between the mounting studs. Any ideals on what it's original application was for, I'd like to try and get it onto the proper vehicle. 

 

Thanking in advance,

 

Dave

 

STAY SAFE! 

Edited December 4, 2021 by Canadian PB Kid
add Plymouth (see edit history)

[ArticiferTom]

They are listed as universal in my Carter book Along with s and sd some have different flange diameters . .

[sagefinds]

It looks like a BB-1 although the 1 isn't clear. They came out on late 30's GM cabover trucks because of the low headroom and considered by many to be the best updraft carb ever made. Many are used on early brass era vehicles that are not put in shows but want to be driven with a carb that is dependable and so much better than the originals. Always in demand and worth a few bucks more than most other carbs of that era.

[drwatson]

12 hours ago, ArticiferTom said:

They are listed as universal in my Carter book Along with s and sd some have different flange diameters . .

My 1940 Carter Carb book agrees. It lists carb number 245S  (no "D" in my book) as "universal BB-1" .  "Model 245SD" appears to be what is stamped on brass tag in photo.

[ArticiferTom]

Look at my book . It does list SD for replacement on 31-32 Dodge trucks with U2  and DDG engines . Also 1930 Mopars with CJ, DD, CK and DD2 engines .  Hay! , my truck fit this .  Let me know .

On 12/4/2021 at 4:40 PM, Canadian PB Kid said:

Hello, I have this Carter carb that is similar to the one that fits on my Plymouth PB, The major difference is the space between the mounting studs. Any ideals on what it's original application was for, I'd like to try and get it onto the proper vehicle. 

 

Thanking in advance,

 

Dave

 

STAY SAFE! 

 

[Canadian PB Kid]

20 hours ago, ArticiferTom said:

Look at my book . It does list SD for replacement on 31-32 Dodge trucks with U2  and DDG engines . Also 1930 Mopars with CJ, DD, CK and DD2 engines .  Hay! , my truck fit this .  Let me know .

 

Which book?....What is the measurement between your mounting studs?

 

Dave

 

STAY SAFE!

[ArticiferTom]

It is from a price form 1950 revision in loose leaf catalog .  My carb is 2 -3/8" center on center .

[carbking]

Carter made 68 DIFFERENT MODELS of the BB-1 in 3 different flange mounting sizes.

 

The 245s was a universal replacement, with ZERO original applications. 

 

The "D" after the 245s was an engineering status code. This has been explained in detail several times, and can be researched on my website; but in a nutshell IN THIS CASE, the means the carburetor was built AFTER WWII. The original 245s had a cast iron bowl. The 245sd has a die cast pot metal bowl.

 

The 245s and 245sd were the smallest of the Carter BB-1 carbs with an S.A.E. size 1 (2 3/8 c-c) flange. Size 2 (2 11/16 c-c) and size 3 (2 15/16 c-c) were also produced.

 

The 3 UNIVERSAL BB-1's

 

Size 1 - 245s, 245sa, 245sd

Size 2 - BB1A, BB1D

Size 3 - 289s, 289sd

 

Jon.

Edited December 6, 2021 by carbking (see edit history)

[carbking]

A wee bit of research would have resulted in:

 

Carter universal BB-1 carburetors

 

Jon.

[edinmass]

Jon, the LaSalle listing is interesting......since the Cadillac V-8 was almost a carbon copy of the LaSalle..........yet no Cadillac listing?  Interesting. The article you posted on the Carter’s is great......thanks for sharing. 
 

Love the special note to clean the idle tubes and channels..........80 percent of the “professionally rebuilt” carburetors I take apart have not been completely disassembled..........and usually no where close to being done correctly. 
 

PS- I shall refrain from my general comments that 99 percent of all cars should always run their factory correct carburetor........unless they are suffering from pot metal failure. 

[carbking]

Ed - I generally feel that the engineers knew what they were doing. I have no clue WHY Carter suggested the 289s for the La Salle, let alone the Cadillac. I don't remember ever speaking with a La Salle customer that had one, but have spoken to a number of Packard owners of the smaller 8 (319 CID) that were VERY unhappy with the BB-1. Our experience has been that 275 CID might be the upper limit for ANY of the BB-1 Carters. Replacing the Carter on the Packard with an SF-3 correctly calibrated allows the Packard to run much better than with the Carter, and better than the original Detroit. Although there are not a lot of Detroit specialists left.

 

Even though I have also posted on my website, with the approval of Carter, the original service instructions for the BB-1; probably half of the folks who call don't know about the second idle tube.

 

Personally, if the physical size is not an object, I would use the Stromberg SF/SFM series in every instance rather than the BB-1.

 

Jon.

Edited December 7, 2021 by carbking (see edit history)

[Canadian PB Kid]

Thanks all for their input, Yes I had done a quick search of BB1 carbs and read that the pot metal version was introduced post war, at the same time they added a few more screws to secure the top to the base, the reason given was to prevent warping from heat. Has anyone experienced warping of a BB carb from heat?

 

I'll presume that this carb is a pretty good core for someone who has (or thinks they have) all the original jets that were manufactured by the the manufacturer of their vehicle. 

 

Dave

 

STAY SAFE!