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S-197 Mustangs
Please help diagnose engine noise - S/C Roush 4.6L 3V
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<blockquote data-quote="Mojo88" data-source="post: 16947940" data-attributes="member: 184279"><p>Car is 2010 supercharged Roush, 4.6L 3V, 24psi boost, 625rwhp. Earlier this season, I went for a ride and noticed an engine noise. When I revved the engine a little bit, it sounded like a loose timing chain was rubbing against something, so I immediately suspected a broken chain guide.</p><p></p><p>So I bought new Ford timing chains, heavy duty MMR guides, along with two new Ford phasers, and two cast iron tensioners. Heck, I even bought a new timing chain cover, cause it was so cheap, haha.</p><p></p><p>Anyway, I take off the timing chain cover and I see no problems at all. Nada, the chains and guides are perfect. Tensioners and phasers, I'm not sure. I'm gonna replace all these parts anyway, since I already bought the stuff.</p><p></p><p>My next suspect(s) is a weak/broken valve spring or possible a rocker?? Any thoughts are welcome. I'm kinda stumped, and worried........... Thanks</p></blockquote><p></p>
[QUOTE="Mojo88, post: 16947940, member: 184279"] Car is 2010 supercharged Roush, 4.6L 3V, 24psi boost, 625rwhp. Earlier this season, I went for a ride and noticed an engine noise. When I revved the engine a little bit, it sounded like a loose timing chain was rubbing against something, so I immediately suspected a broken chain guide. So I bought new Ford timing chains, heavy duty MMR guides, along with two new Ford phasers, and two cast iron tensioners. Heck, I even bought a new timing chain cover, cause it was so cheap, haha. Anyway, I take off the timing chain cover and I see no problems at all. Nada, the chains and guides are perfect. Tensioners and phasers, I'm not sure. I'm gonna replace all these parts anyway, since I already bought the stuff. My next suspect(s) is a weak/broken valve spring or possible a rocker?? Any thoughts are welcome. I'm kinda stumped, and worried........... Thanks [/QUOTE]
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Please help diagnose engine noise - S/C Roush 4.6L 3V
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