ManuR
Active Member
Hey,
I have just powder coated my carburetors. since i didn't found a lot on this subject when i did my research.
I am gonna post some stuff and pictures here.
My setup
- Eastwood dual voltage powder coating system
- Prismatic powder, Ink Black
- Glass bead blasting the carbs
- DIY Industrial oven
1 Blasting
- Sode: Verry safe, doesn't do any harm to the Carb or engine, Can Clog passages and be hard to clean out.
- Glass bead: Much faster than soda blasting (at least for my setup) but you have to be sure to clean it all out perfectly, doesn't really clog so easier to clean out.
2 Out gassing
The next important step for powder coating a Carb, is to out gas it, the pores of the metal are packed full of oil and fuel.
And if you don't out gas it very good, it will result in a very ugly fish-eye sorta finish, Been there and had to start from scratch again.
Temp = 440°F, Time = 40-60min.
The next thing to know here is that the cb360 carbs have plastic plug in them (which i forgot to take out ...
So you will have to find something to fill it up (Any ideas? ).
But the most important thing is, don't suspend it from it's thin parts in the oven!! i have done this, and the carb warped (from it's weight not heat warpage). to bad i don't have a picture. The top of my carb, where the cover lid of the vacuum Diaphragm goes. was bent on two corners almost to the extend of 1/2". i freaked out when i saw this. but i put the carb back in the oven, heated it up really good (450°F) end pushed it top down on a big steel block. i got i fairly straight again, i think i got away with it. But do keep this in mind !!
3 Masking
This part is kinda obvious, but maybe the most important part, the powder goes absolutely everywhere and you don't want to have to sand it out the inside of the carb.
4 Powder coating
Spray the inside corner and crevices first, than do the big surfaces.
5 Enjoy
I Can't say it's perfect, but it's way better than before.
These babies are gonna look good on my black engine.
If anybody has any idea as to what i can fill the pilot circuit hole with, please let me know.
I have just powder coated my carburetors. since i didn't found a lot on this subject when i did my research.
I am gonna post some stuff and pictures here.
My setup
- Eastwood dual voltage powder coating system
- Prismatic powder, Ink Black
- Glass bead blasting the carbs
- DIY Industrial oven
1 Blasting
- Sode: Verry safe, doesn't do any harm to the Carb or engine, Can Clog passages and be hard to clean out.
- Glass bead: Much faster than soda blasting (at least for my setup) but you have to be sure to clean it all out perfectly, doesn't really clog so easier to clean out.
2 Out gassing
The next important step for powder coating a Carb, is to out gas it, the pores of the metal are packed full of oil and fuel.
And if you don't out gas it very good, it will result in a very ugly fish-eye sorta finish, Been there and had to start from scratch again.
Temp = 440°F, Time = 40-60min.
The next thing to know here is that the cb360 carbs have plastic plug in them (which i forgot to take out ...
So you will have to find something to fill it up (Any ideas? ).
But the most important thing is, don't suspend it from it's thin parts in the oven!! i have done this, and the carb warped (from it's weight not heat warpage). to bad i don't have a picture. The top of my carb, where the cover lid of the vacuum Diaphragm goes. was bent on two corners almost to the extend of 1/2". i freaked out when i saw this. but i put the carb back in the oven, heated it up really good (450°F) end pushed it top down on a big steel block. i got i fairly straight again, i think i got away with it. But do keep this in mind !!
3 Masking
This part is kinda obvious, but maybe the most important part, the powder goes absolutely everywhere and you don't want to have to sand it out the inside of the carb.
4 Powder coating
Spray the inside corner and crevices first, than do the big surfaces.
5 Enjoy
I Can't say it's perfect, but it's way better than before.
These babies are gonna look good on my black engine.
If anybody has any idea as to what i can fill the pilot circuit hole with, please let me know.