1SlowSi

After further inspection of my F22C head, I noticed that a few of the valve seals had moved up and are freely moving between the retainer and the guide. This motor has approximately 10k miles on it and have never had any head work done. Is there any explanation to this madness? The car never smoked from what I could see but its obvious in the exhaust ports that there was defintely oil leaking down the stems and caked in the ports. Since a few people I have spoken to locally said they have never seen this before, I figure I'd ask some of you. What could have caused this to happen? Car was ran on the streets at 650whp and has been on E85 since October 2010. Clearances were always checked to .008"/.010". Below is a picture I made to show it since the head is off for upgrades.

spectacle

Too much cowbell.

camuman

excessive blowby? dumb luck? too much boost? orrrrrr to much cowbell!

hybridsol

I had to google this... very funny stuff.

Seiously, overrev could cause this? Or install error?

s2000Junky

My 3 guesses are wrong part match, install error, or excessive vibration under high rpm/valve float? Ive never heard of this though, so I feel stronger about it being the wrong seals on valve guides, or install error.

Just re read the OP, stock engine? If so it may more likely be vibration or some strain/float situation causing the seal to unseat themselves. Hard to know for sure.

sohc_mshue

It was not smoking?! Time to pop some new ones in and hit 800whp

1SlowSi

Thats the crazy part! It wasn't smoking one bit! Those guides must have been as tight as a virgin lol. I have never overrevved this motor so it must be excessive vibration which doesn't sound right seeing how none of us have ever seen this issue. A few friends of mine have worked on hundreds of S2000's and have never seen anything like it. I guess at this point it doesn't really matter since the head is off to get some goodies put it anyway