Engine Knock/Tapping
06-18-2012, 08:07 AM
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Engine Knock/Tapping Anybody got a clue what this could be? All the header blots are tight and I don't see any soot around the heads so I don't think it's a exhaust leak. I pulled the belt off and ran it to make sure it wasn't a pump, and the noise was still there. It is louder on the drivers side of the car, mainly above the #1 cylinder. I pulled that valve cover this past weekend and all the rockers, springs and pushrods looked fine from what I could tell.
06-18-2012, 12:10 PM
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Nvm, went to my tuner today. He listened with the stethoscope and is confident it's a lifter. Good thing I was already planning on replacing them when I swap my heads.
06-20-2012, 06:22 AM
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tapping sound let us know if indeed its a lifter. there has been 2 people here in orlando, including myself that have been told this was the piston pins. a factory defect.
