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Generation III Internal Engine
loud knocking problem :(

Generation III Internal Engine 1997-2006 LS1 | LS6

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loud knocking problem :(

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Old

Jun 12, 2003 | 08:43 PM

#1

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loud knocking problem :(

my engine was making a loud knocking sound and i took the passanger side head off and i noticed the piston had a pattern that matched the inside of the head. it wasnt hitting the valves just the head. any suggestions why this is happening?

stock engine btw 99 z28

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Jun 12, 2003 | 09:58 PM

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Re: loud knocking problem :(

TTT anyone?

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Jun 12, 2003 | 10:07 PM

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Re: loud knocking problem :(

Time for some new rods and bolts...probably spun a bearing and your piston is extending beyond the limit of the block.

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Jun 12, 2003 | 10:17 PM

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Re: loud knocking problem :(

That's what I was thinking man that sucks good luck atleast you can upgrade for a reason.

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Jun 13, 2003 | 01:35 PM

#5

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Re: loud knocking problem :(

i dont see any damage to the cylinder wall does that mean it should be an easy fix. or will i not know till i open her up more?

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2001, exhaust, leak, loud, suburban, tapping

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