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Rod knock?

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Old Apr 9, 2015 | 02:11 PM
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evole97's Avatar
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From: califorina
Rod knock?

In middle of my Dyno session my car starting make loud knocking noise. I thought i had rod knock. BUT then i realized Rod knock get louder and louder when u rev up, When i rev up to 3k it sounds like rod knock, rev up to 4k it gets more quiet. I pulled valve cover off and some of my Camshaft bearing cap bolts were loose so i toured them down and starting the motor agin and still making that noise. what do you guys think? I am running GSC s2s plus Super tech springs and retainers. One more thing that was weird to me was that after everything i pulled the oil stick looks like theres so much oil over the 2 lines and oil in the middle of the stick off over..
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Old Apr 9, 2015 | 03:04 PM
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you probably ****ed the head when the cam caps were loose.
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Old Apr 9, 2015 | 03:34 PM
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From: htown
hard to understand, but those loose cam caps might have ruined you. who installed the cams? did you torque them down the right way?
would have some piston valve contact. you should check the oil pan, do compression and leak down test.
you can check the oil dip stick after the car has run. clean it and wait til its cooled down and the oil has gone back into the pan then check.
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Old Apr 9, 2015 | 06:54 PM
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Originally Posted by sujinX
hard to understand, but those loose cam caps might have ruined you. who installed the cams? did you torque them down the right way?
would have some piston valve contact. you should check the oil pan, do compression and leak down test.
you can check the oil dip stick after the car has run. clean it and wait til its cooled down and the oil has gone back into the pan then check.
there would be no piston to valve contact. It would have just beaten the **** out of the caps, and there is now way too much clearance clearance for the cams in their journals..
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Old Apr 9, 2015 | 08:20 PM
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From: califorina
The machine shop installed my cams
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Old Apr 10, 2015 | 09:02 AM
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From: 3rd Rock {from = sun}
Originally Posted by evole97
The machine shop installed my cams
Hope they will treat you right. Lose cap cams is installer's fault.
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