over revved my 99 ls1 now loud knocking - LS1TECH

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over revved my 99 ls1 now loud knocking

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Old 10-28-2012, 03:00 PM   #1
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Default over revved my 99 ls1 now loud knocking

I missed third gear getting on it really hard last night bouncing off the limiter for a second now the csrs making a really loud inconsistent banging noise. The lol pressures good and idles still smooth. I pulled the valve covers to see if the pushrods looked off but the looked fine. What do ypu guys suggest i check or look at? Do I need to pull the rockers to really see if the pishrods are bent. BTW my motor has 80k on it. I just cant see the motor going already.
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Old 10-28-2012, 03:04 PM   #2
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id check the pushrods first
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Old 10-28-2012, 03:05 PM   #3
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i would pull the rockers and check the pushrods and then change your oil, to check and see if you have any big shaving in the oil, maybe have a spun bearing
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Old 10-28-2012, 04:52 PM   #4
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You may only have 80K on the engine but all it takes is one over rev to damage a rod bearing which it sounds like you did. Especially if those 80K miles were hard miles on that motor, it doesn't surprise me at all really.
98 Bright Red TA, Auto, Flowmaster Catback, 275K miles and still going strong
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