Carburetor Dye

I have a Carter BB1 that I rebuilt a few years ago. I was advised to boil it out, after removing parts, with plain water with a little detergent. A lot of gunk came out of the carb, but it changed the color to a light gold tint from the ? zink from before. Carb runs great, but why the color change?

Rick

Now THAT is interesting !

What kind of soap did you use?

A little bit of Dawn dishwashing detergent.

Just took some interesting photos at a local friend's shop today. The engine is a 1932 Stutz DV-32 on a dyno. They ran it with the factory updraft Shebler then a downdraft Stromberg EE-3 off a Packard V-12, then with the Winfield's shown in the photos. It ran 130 horse power on the factory updraft Shebler, then 160 with the Stromberg. The Webber added another 25 for a total of 184 horse power. I think I need to get some Webber's set up on my Pierce.

Would the Stromberg black carbs have been painted or with a black conversion coating?

Here's a link to a black conversion coating process: http://www.hubbardhall.com/Collateral/ProductBulletins/English-US/2232009.pdf

Here are 4 black Stromberg carbs on a 1934 Studebaker 250 cu in straight 8, as was being developed for the 1934 Indy race - the factory didn't go to the races that year due to receivership. I think these are EX-22 carbs (no choke stove). Were these painted or conversion-coated?

Paint.

Jon.

Jon, what is your favorite place to apply "New Jersey zinc di-chromate" on my EX32's

Jon, what is your favorite place to apply "New Jersey zinc di-chromate" on my EX32's

Curt - I honestly don't know. As the demand for our rebuilding kits has forced us to cease carburetor restorations (we haven't done a carb in almost 3 years), I don't know who currently is still doing the chromate on zinc. I would check with your favorite chrome plater, as the waste treatment facility would be the same for both processes.

Jon.

I have known my plater for 20+ years, I know he doesn't do it. Someone suggested Daytona re-builders in Florida, I'll call them when I am ready. I get very nervous dealing with some new when the carbs are as rare as these are.

They have to be right the first time.

The carbs on the 34 Stude look like Auburn linkage set up's. The shop I work with manufactures this style linkage as well as many others. Ed.

Here are 4 black Stromberg carbs on a 1934 Studebaker 250 cu in straight 8, as was being developed for the 1934 Indy race - the factory didn't go to the races that year due to receivership. I think these are EX-22 carbs (no choke stove). Were these painted or conversion-coated?

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