A New Noise

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May 16, 2005 | 10:08 PM

Ed Blown Vert

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A New Noise

Well, after the 1/8 mile track. Starting hearing another noise. Idle is a bit rough. But runs strong.

Knock

Any ideas?

May 16, 2005 | 10:46 PM

LSONE

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sounds like its time to pull the valve covers and check things out, shouldnt take too long.

May 16, 2005 | 11:05 PM

Ed Blown Vert

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I plan on it, just trying to figure out what it is.

May 17, 2005 | 10:05 AM

Bad30th

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I heard this noise in person on Sunday, it's not as hollow sounding as bottom-end rod knock I've heard before (spun main bearing). ...although I've never heard anything make this specific noise before...

We're pretty sure it's not the crank pulley/bolt as we verified it was pretty tight...

Things I just though of - how's your oil pressure ? Any fluctuation in oil pressure when the noise happens ? Any metal on your oil drain plug ?

I'd definately look at/verify the top end first Ed...

Rob (Bad30th)

May 17, 2005 | 10:52 AM

Ed Blown Vert

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Yep, I don't think it was the crank bolt. But I will double check it again.

Oil Pressure is fine. Its actually a bit higher since the install.

I will be pulling the valve covers off tonight.

I am wondering if it could be lifters....

May 17, 2005 | 10:45 PM

Ed Blown Vert

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The valvetrain looks fine. So I am guessing it still may be the crank pulley.

May 18, 2005 | 01:07 AM

strokedls1

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Didn't sound like anything specific. I would check some of the plugs to see how they are running. Check for misfires on the computer also to try to narrow it down.

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May 18, 2005 | 08:28 AM

Ed Blown Vert

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No misfires. Plugs look fine.

May 18, 2005 | 02:36 PM

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strokedls1

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That top right one #7 I assume looks like it got a little hotter than the rest. What is all the dirt on that plug? How is the coolant level in the radiator?