1

In the midst of replacing my Catalytic Converter on my 03 Nissan 350z, I have taken off the Catalytic Converter to reveal a pretty rusty mating surface between the two components. My question is what is sufficient for cleaning this area up. So far I used some parts cleaner, and a wire brush to get off the lose material (as pictured below). Is it wise to also follow up with some high temperature paint (primer/topcoat)? Perhaps a small amount of Nickel/Copper Anti-seize?

enter image description here

Note that there is a gasket that goes between the catalytic converter and headers enter image description here

Improve this question
1

I use High temp anti-seize compound, Nickel compounds are best but more expensive than copper, which will do in your case unless it is turbocharged, then use Pure Nickel compound.

https://www.amazon.com/s?k=high+temp+anti-seize&ref=nb_sb_noss_1

Improve this answer
2
  • Thanks for the input! I have read around and some people were claiming that where you apply your anti-seize compound it could create an exhaust leak. Is there any truth to this? If not it truly seems like anti-seize is the way to go. – Copy and Paste Jun 26 '20 at 21:43
  • 1
    Never had this happen to me in decades of working on cars for a living., internet folklore. Put some on the bolt threads also. – Moab Jun 26 '20 at 21:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.