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Slidin'Miata916

07-02-2007 11:46 PM

Question about Valves on head.

Two valves are up, and I noticed the other two are slightly opened. I can stick my nail in it when the others are nicely shut. Is this normal? I thought while two are open, the other two are closed. Is this normal?
Thanks :bowdown:

akaryrye

07-03-2007 01:25 AM

pretty sure its normal

lazzer408

07-03-2007 02:19 AM

Valve overlap is the term used to describe that transition at the end of the exhaust stroke and begining of the intake stroke where both valves are open for a moment. If the cams arn't in the head I'd worry.

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