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11-17-2012, 08:23 PM
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Registered User
Join Date: Nov 2010
Location: Fresno California
Posts: 65
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timing engine -what does it mean when engine is sucking air through exaust ports
im rebuilding a 350 and i put the starter on it to turn it over. I put my finger over the #1 spark plug hole but it doesnt push any air out. But it is sucking air through the exaust ports on the head. there are no spark plugs in the engine right now.Does anyone know what the problem is ? i lined up timing marks am i 180 out?
thanks
__________________
 1986 GMC Sierra Classic 4X4
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