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Old 03-21-2016, 07:44 AM   #12
Tiger12XC   Tiger12XC is offline
 
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Join Date: Oct 2015
Location: Texas
Posts: 146
It does sound like its in the valve train as the sound alternates like it should as the cam rotates to open and close each valve. It has a different frequency to the exhaust note. tickity tap tickity tap.


 
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