Michael. 2312 Report post Posted May 9, 2013 Could anyone recommend the best way to remove carbon build up inside of an exhaust tube? Brushes are a little impractical for the design so is their a chemical or spray that would break down the carbon on contact or by soaking? I've used products like CRC electra-clean a heavy duty degreaser (Tricholoretheylene / tetrachloroethylene ) that work really well but given they are somewhat costly per can I wondered if anyone had their own recommendation? Cheers in advance. Quote Share this post Link to post Share on other sites
Navin 180 Report post Posted May 9, 2013 Threebond does a product called 'Engine conditioner' that breaks down carbon deposits, used as an upper engine cleaner. Part number is 6601j and Repco stocks it. Worth a try? Quote Share this post Link to post Share on other sites
