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Old 07-16-2012, 01:22 PM
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289 clanking under the valve covers

Hey I'm working on my buddy's Ford 289 and it makes a horrible clanking noise at idle. Once it gets up to about 2000 rpm it goes away but it sound like s**t at idle. This condition does not change when it warms up either.

Is it possible that the valve is hitting the piston or do you guys think it's a loose rocker arm that needs to be adjusted? Valve lash issue maybe?

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