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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
2014 Roush Raptor startup 'tapping' sound?
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<blockquote data-quote="Biltx77" data-source="post: 1823633" data-attributes="member: 62487"><p>Just spent 10 hrs replacing the exhaust manifold, passenger side. Had 2 broken studs at the rear most cylinder. Mine has a whipple supercharger. The manifold was warped almost 1/8inch front to back. Installed a new manifold and plugs. I could have sworn that there was a bad lifter or rocker. It made that same noise every time I started it up. Usually took a good 3 to 5 min to go away. Replaced the manifold and the tic magically went away. I'm a 20yr mechanic and can usually tell the difference between an exhaust leak and a valvetrain noise, but this one got me. Hope yours works out the same.</p></blockquote><p></p>
[QUOTE="Biltx77, post: 1823633, member: 62487"] Just spent 10 hrs replacing the exhaust manifold, passenger side. Had 2 broken studs at the rear most cylinder. Mine has a whipple supercharger. The manifold was warped almost 1/8inch front to back. Installed a new manifold and plugs. I could have sworn that there was a bad lifter or rocker. It made that same noise every time I started it up. Usually took a good 3 to 5 min to go away. Replaced the manifold and the tic magically went away. I'm a 20yr mechanic and can usually tell the difference between an exhaust leak and a valvetrain noise, but this one got me. Hope yours works out the same. [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
2014 Roush Raptor startup 'tapping' sound?
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