S2000 Under The Hood S2000 Technical and Mechanical discussions.

Black soot on bumper? PICS

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Old 05-30-2006, 12:27 PM
  #31  
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Originally Posted by mikegarrison,May 29 2006, 02:04 PM
It seems we have reached the limit of what can be done over the internet. The car is obviously running too rich and/or too cold. Either your cat is not working or it is being overwelmed. My guess is that something is not "back to stock" like you think it is.
Old 06-02-2006, 08:11 PM
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After tons of searching, I came across this thread. https://www.s2ki.com/forums/index.ph...=246071&st=275

Before I found that thread, Sideways started a thread about positive pressure in the crankcase and how it can stress seals(Thread seems to have disappeard ). So I searched honda-tech.com and found that some of the symptoms of bad valve seals are smoking at start up(which I have).

Turns out that the guy in the first thread, after 12 pages , had the same symptoms I do and turned out to be the valve seals.

I wanted to say thanks for the suggestions and will have the head off soon to inspect it after my leakdown test.
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