Stromberg Carburetor Finish

[Dave D]

[FONT=arial,verdana,helvetica]Does anyone have a copy of the original Ford Service Bulletin that described how to rebuild the Stromberg carburetor including the process for the chromate color finish? I know I have a copy of it around here but I'll be darned if I can find it! (I put it in a safe place in case I needed it!)

[/FONT]

 

[uncle max]

Here's what can be done with the chemicals available today...
A grey/green/pewter colored barrier coating - impervious to fuel & should last another 70 years...

 

[Bruce/CT]

Hi Uncle Max,
Do you have a mix ratio of the Grey/Green/Pewter powders for the coating?
Thanks,
Bruce/CT

 

[uncle max]

Hi Uncle Max,
Do you have a mix ratio of the Grey/Green/Pewter powders for the coating?
Thanks,
Bruce/CT

It's a nasty acid mix, not powder...

 

[Flathead Fever]

I need to restore my carbs too. Is this toxic acid available here in the USA or do I order it from a Chinese toy manufacturer?

Jerry

 

[jdl]

Maybe we know each other, I lived & grew up in Yucaipa, went to grade schools in Yucaipa & Redlands H.S. also retired from GTE-Verizon.
always loved old flathead Fords.

p.s. goggle Caswell Plating they sell the chemicals ( I have never done the plating)
Jim

 

[Charlie ny]

Dave,
I would bet that if you ask Max real nice he'll plate your carbs.....
not for free of course.....and you'll be $$$$$ ahead.
A lot of us do carbs and love the challenges they represent.....
Max does them 100 at a time.
Charlie ny

 

[side_valve]

Yes, have Max do your carbs. You'll be very, very happy with the results.

[FONT=arial,verdana,helvetica]Does anyone have a copy of the original Ford Service Bulletin that described how to rebuild the Stromberg carburetor including the process for the chromate color finish? I know I have a copy of it around here but I'll be darned if I can find it! (I put it in a safe place in case I needed it!)

[/FONT]

 

[01aford]

Very nice Uncle Mike

 

[uncle max]

Dave,
I would bet that if you ask Max real nice he'll plate your carbs.....
not for free of course.....and you'll be $$$$$ ahead.
A lot of us do carbs and love the challenges they represent.....
Max does them 100 at a time.
Charlie ny

Yeah. A 100 challenges at a time...

 

[BillM]

I couldn't post a copy of the pages of the Service Bulletin as the file was too big, but I copied the section that describes the recipe for the cleaning and chromate dip:

Cleaning:
Caustic soda solution: 1 1/2 lbs of caustic soda (flake or granular caustic soda) per gallon of water.
For the caustic to act on the parts, all oil and grease film must have been removed as outlined in numbers 1 and 2.
Remove the parts from the caustic solution and rinse thoroughly in running water.
Dip the parts for not over 15 seconds in a chromic acid solution. This solution should contain the following materials per gallon of solution.
2 pounds of chromic acid, commercial grade
5 ounces of commercial grade nitric acid
2 1/2 ounces of commercial grade sulphuric acid
Balance water
Rinse thoroughly.

Obviously, if you are going to do this wear the appropriate rubber gloves, apron, and face shield. Have fun.

 

[uncle max]

I couldn't post a copy of the pages of the Service Bulletin as the file was too big, but I copied the section that describes the recipe for the cleaning and chromate dip:

Cleaning:
Caustic soda solution: 1 1/2 lbs of caustic soda (flake or granular caustic soda) per gallon of water.
For the caustic to act on the parts, all oil and grease film must have been removed as outlined in numbers 1 and 2.
Remove the parts from the caustic solution and rinse thoroughly in running water.
Dip the parts for not over 15 seconds in a chromic acid solution. This solution should contain the following materials per gallon of solution.
2 pounds of chromic acid, commercial grade
5 ounces of commercial grade nitric acid
2 1/2 ounces of commercial grade sulphuric acid
Balance water
Rinse thoroughly.

Obviously, if you are going to do this wear the appropriate rubber gloves, apron, and face shield. Have fun.

If it was easy, everyone would be doing it...

 

[1952henry]

Good luck getting the chromic or nitric acid!

 

[Bruce Lancaster]

And...it is worth knowing that Ford withdrew the original bulletin on the dip and replaced it with greatly increased use of safety warnings! Doubtless there was some human suffering involved in this.