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Question about Valves on head.

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Old 07-02-2007, 11:46 PM
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Default 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?
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Old 07-03-2007, 01:25 AM
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pretty sure its normal
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Old 07-03-2007, 02:19 AM
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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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