Cleaning Carbon Deposits from 2-stroke Exhaust

Letter 10014

Can you please tell me how to or with what acid I can use to clean off the carbon built up inside a 2 stroke exhaust pipe?

Thanks,

Jason S name was deleted
- Sydney, NSW, Australia

 

Jason,

I'm looking for a chemical to remove carbon contamination on SST 316 after citric passivation as well. Someone had told me to use KMNO2+ NaOH at 80 C.You may want to try.

Any comment from anyone?

Andy Y name was deleted
- Singapore

May 23, 2008

Hi, fellows. I don't think it is possible to remove carbon smuts with acid.

Jason, I think you need to bead blast this, or possibly burn it off.

Andy, I don't understand why you are raising carbon smuts through citric acid passivation of stainless steel. You might talk to Stellar Solutions about this issue. Good luck.

Regards,


Ted Mooney, P.E. 
finishing.com
Brick, New Jersey

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