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New Edge Cobras
sTUPID Knock.. need help
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<blockquote data-quote="milenko1247" data-source="post: 9317968" data-attributes="member: 75444"><p>So I started hearing a knock on my rebuilt engine. Its a 99 cobra with an aluminum block with forged pistons and rods. I also have an eaton swap on it and it seems to knock bewteen 1900-2900 rpms when it is under a load. so just reving it in the drive way there is no noise. Its not a loud noise so when the windows are down i can barely hear it, but with the windows up i can hear it even louder. But it is still not a loud tick. What is this, is this piston slap?? I didnt think it could be a spun bearing because it only happens bewteen a certain rpm . Oh yeah, the car has like 1200 miles on the new motor.</p></blockquote><p></p>
[QUOTE="milenko1247, post: 9317968, member: 75444"] So I started hearing a knock on my rebuilt engine. Its a 99 cobra with an aluminum block with forged pistons and rods. I also have an eaton swap on it and it seems to knock bewteen 1900-2900 rpms when it is under a load. so just reving it in the drive way there is no noise. Its not a loud noise so when the windows are down i can barely hear it, but with the windows up i can hear it even louder. But it is still not a loud tick. What is this, is this piston slap?? I didnt think it could be a spun bearing because it only happens bewteen a certain rpm . Oh yeah, the car has like 1200 miles on the new motor. [/QUOTE]
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sTUPID Knock.. need help
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