Stromberg surface look

[3W Hank]

How was the surface on the Strombergs.
Was it bare aluminium or a colored barrier coating ?
One thing is before many glassbeeded parts.
If that has been done can this be smothed out by vapor honing ( water blastering )
I has 3 sets or pair of them, non bad, actually nice but cast look and color tan is not there.
The LZ pair is darker and fixed in Sweden, and one pair 97 done by Vintaga Carb Tech in Orange Ca is more clear ( some tan ) and the other 97 is glassbeeded and overlockef in Norway.
I might get a second pair of LZ as I will be use a inline x4 intake.
Or I will use 4 by 97.
This carbs is all fixed but miss/match on surface/color, so I miss the smooth cast surface and greenish tone.
-But I cant say how they came out new.
Maybe they was not silver/greenish ( as I has in mind )
Look at this set, nice but might to green, or ?
Whos doing this surface/coatings ?

 

[deuce lover]

The NOS ones I have seen have a gold anodize tint to them but those were later ones.If you want them all to look alike ,Max in Utah can do that.Here is Uncle Max's work.

 

[3W Hank]

So they can maybe only do vapor and anodzing.
I will try call them, thank's.

 

[alchemy]

Don’t call Max, email him.

 

[Kube]

The NOS ones I have seen have a gold anodize tint to them but those were later ones.If you want them all to look alike ,Max in Utah can do that.Here is Uncle Max's work.

Deuce,
That gold tint was either right before WWII or right after. I can't recall. Prior to that, no gold...

 

[3W Hank]

Got contact.

Then now decide go 4 LZ or 4 97..

If I found 2 extra LZ I get it x4 to my new Multi intake.
Then I has a nice pair from Jere Jobe on a Thickstun PM7 intake and 2 restored 97 in a Edelbrock Super intake.
If someone is intrested in either they are for sale.

 

[mercman from oz]

Stromberg Carburettors - deuce lover

 

[1952henry]

A Ford truck restorer I know, whose restorations win dearborns, says yellow dichromate was post war.

 

[Kube]

A Ford truck restorer I know, whose restorations win dearborns, says yellow dichromate was post war.

That sounds correct. I knew it was right around WWII but could no longer recall before or after. Thanks for the clarification.

 

[38 coupe]

Chromate conversion is still used on some aircraft parts, the carburetor manufacturers probably learned to do it as part of government contracts during the war.

 

[3W Hank]

What is chromate ?

The works from Max is that the early style or after the war ?

The ones I showed first on pictures look yellow/green.

The one pair I has from Vintage Carburators Technologies is more bare aluminium but its a tan in them. On picture in that light they look more green than they are.

I don't know yet if I will use four 97 on the Multi intake I bought or try get 2 more LZ.
The LZ I has is just cleaned up and new repro axles.
The LZ is a tad of tan but more bare aluminium.

 

[1952henry]

Sodium dichromate, sulfuric acid, and distilled water will create the yellow chromate. It creates a hard shell on prepared zinc die cast which resists corrosion. Think yellow hardware store bolts. There is a clear zinc chromate as well. These carburetors are made of zinc die cast, not aluminum.

I have used both yellow and clear chromate on carburetor bodies. With the clear, you can see some body parts must have had different ingredients in the die cast pot. Despite using the same prep steps, some pieces would not match.

Modern clear chromate is trivalent chromium, which is much kinder to the human body than the yellow, which uses sodium dichromate (hexavalent chromium).

I restored a Holley for a shop that was doing a frame-off restoration of a GT500 Mustang, with the 428CJ. That required both yellow and clear.

 

[3W Hank]

I doing natuaral hard anodzing on a product ( line bore ) I make and its easy get colour changes on each material or even in same batches.
I saw a tad change on some chromated 97’s, maybe some old body, new top ?