Question about Valves on head.

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Jul 2, 2007 | 11:46 PM

Slidin'Miata916

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From: West Sacramento Ca

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

Jul 3, 2007 | 01:25 AM

akaryrye

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From: Central California

pretty sure its normal

Jul 3, 2007 | 02:19 AM

lazzer408

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From: Illinois

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.