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Knock @ 3k rpms

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Old Oct 19, 2011 | 09:21 PM
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GregTSi's Avatar
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Default Knock @ 3k rpms

So, It sounds good at idle, no noises just a small exhaust leak.. but when I hit around 3k rpms it gets a LOUD knock, I thought it was a rod knock, but its coming from the top not the bottom.

It's lost a little bit of oil pressure, and won't idle when fully warmed. Will get a video tomorrow, its like 25 degrees in alabama, wtf.

Fucked up cam, lifter, ??. It's a really loud knock, and it just comes on all of a sudden.
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Old Oct 20, 2011 | 01:35 PM
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Pull the oil filter and cut it open. If you have copper glitter in the filter, then its a spun rod bearing. Good luck.
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Old Oct 20, 2011 | 02:51 PM
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Originally Posted by GregTSi
So, It sounds good at idle, no noises just a small exhaust leak.. but when I hit around 3k rpms it gets a LOUD knock, I thought it was a rod knock, but its coming from the top not the bottom.

It's lost a little bit of oil pressure, and won't idle when fully warmed. Will get a video tomorrow, its like 25 degrees in alabama, wtf.

Fucked up cam, lifter, ??. It's a really loud knock, and it just comes on all of a sudden.
Do you have dual springs? Could be a bad lifter and when the oil gets warm and thins out it doesnt pump up the lifter enough. You can take the valve covers off and check the springs.
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Old Oct 20, 2011 | 03:00 PM
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Cam bearing?
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