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Bizarre Lifter Question

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Old Aug 26, 2006 | 08:33 PM
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Default Bizarre Lifter Question

I ran the car with the valve covers off... I noticed that when you turn the car off, the lifters bleed down within 5 or 10 seconds.. every single one of them. Does anyone have any ideas?

Spring pressure is about 375

Last edited by DrEvil11417; Aug 26, 2006 at 08:42 PM.
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Old Aug 27, 2006 | 08:31 AM
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Hydraulic lifters ride on a bed oil provided by the engine and are assisteed by a spring. Depending on how yours adjusted, you may very well be able see them bleed right down after the oil pressure goes away. There are many books out there that have a procedure on how to adjust valves if you've never done it before, it might be a good idea to reset them.
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Old Aug 27, 2006 | 08:38 AM
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Originally Posted by DrEvil11417
I ran the car with the valve covers off... I noticed that when you turn the car off, the lifters bleed down within 5 or 10 seconds.. every single one of them. Does anyone have any ideas?

Spring pressure is about 375
Thats perfectly normal. I assume your spring pressure is open spec is for open press.
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Old Aug 27, 2006 | 09:56 AM
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the problem i'm running into is that they won't take an adjustment - they all just keep on making noise and i get a sputtering sound out of the tailpipes (true duals)
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Old Aug 27, 2006 | 09:57 AM
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Originally Posted by DrEvil11417
the problem i'm running into is that they won't take an adjustment - they all just keep on making noise and i get a sputtering sound out of the tailpipes (true duals)
Ya got good oil press?
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Old Aug 27, 2006 | 12:21 PM
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Yeah, 45 psi at idle on average, 35 when it's hot, it's a brand new engine
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Old Aug 27, 2006 | 12:38 PM
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Theres a thread on here on how to adjust your lifters. good advice, probably a couple pages back by now.http://forums.corvetteforum.com/show....php?t=1474038

Last edited by edcmat-l1; Aug 27, 2006 at 12:42 PM.
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