Butterfly valve question

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Butterfly valve question

10-04-2014, 09:17 AM

Stihlindixie Stihlindixie is offline

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Join Date: May 2014

Location: Houston, TX

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Butterfly valve question

I've noticed that the butterfly valve at the intake keeps opening closing a lot when at idle. With it opening and closing you can hear a change in the sound of the engine constantly. Is this normal? I've never noticed it before.

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