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07-03-2014, 01:42 PM
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Registered User
Join Date: Feb 2008
Location: Surprise, Ariz.
Posts: 186
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tapping noise valve area
Have 73 GMC 350V 3/4 TON 5.7L rv cam roller rockers. this engine is not broken in. has 50w oil. tried adjusting valves get a tweety sound with the tapping noise. i am trying to do the adjusting with the valve cover off at low idle on the pass side. recently replaced all plugs and header gaskets. the truck sits in the garage and gets started daily. prepping for paint. need help
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