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Lound bang at Idle and low rpm

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Old 04-17-2008, 04:10 PM
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Default Lound bang at Idle and low rpm (updated post #9)
Nosie is a loud banging at idle or low rpm! Seems to stop or atleast quite down at higer rpms. Sounds real bad is it a rod or bearing?
Last edited by StangSlayerSS; 04-24-2008 at 09:12 PM.
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Old 04-17-2008, 04:45 PM
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Doesn't sound good.
Spun bearing or rod knock will usually trace rpms/acceleration.
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Old 04-17-2008, 04:56 PM
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When did it start, how's the oil pressure, etc.
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Old 04-17-2008, 05:51 PM
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Pull the belts off and see if it goes away.
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Old 04-17-2008, 05:55 PM
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wonder if its cracked flywheel....oil pressure?
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Old 04-17-2008, 08:43 PM
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oil pressure was fine, did not over heat! Clutch and flywheel are brand new 200miles on them. Well ill start pulling it apart this weekend.
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Old 04-17-2008, 11:08 PM
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200 miles on the clutch? hmm...coincidence? who installed the clutch?
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Old 04-18-2008, 04:20 PM
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I did! I highly doubt it was the cluth but maybe! sounded like someone was hitting the block with a hammer! But ill find out soon.
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Old 04-24-2008, 09:11 PM
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well appears I had a brand new ls7 lifter break causing valve to tag piston!
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Old 04-24-2008, 11:34 PM
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Ouch.. damn it all!! All there is to do now it to pull the heads and inspect..
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