catch can man
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| PCV valve sucks http://auszookers.com/forum/viewtopic.php?f=5&t=30917 |
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| Author: | samboy1123 [ Sun Mar 04, 2012 3:16 pm ] |
| Post subject: | PCV valve sucks |
Can someone confirm this for me. From my understanding the pcv should be open at idle and closed at full throttle. So if I put my finger on the valve there should be a noticeable drop in suction as I increase the revs , is that right?? |
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| Author: | want33s [ Sun Mar 04, 2012 5:19 pm ] |
| Post subject: | Re: PCV valve sucks |
PCV is a one way valve. It allows the inlet to suck out crankcase pressure/fumes/oil. If you have pressure at the pcv at idle, revs will only increase it. Piston ring blow-by is the usual cause. |
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| Author: | Scrawny [ Sun Mar 04, 2012 5:23 pm ] |
| Post subject: | Re: PCV valve sucks |
As you increase the revs there is less vacuum in the manifold, hence less suction through the PCV. The PCV tends to get a bit clogged with oil over time, a bit of brake clean easily cleans it out. |
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| Author: | fully sick coily [ Sun Mar 04, 2012 6:47 pm ] |
| Post subject: | Re: PCV valve sucks |
catch can man
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| Author: | zook_ute [ Mon Mar 12, 2012 8:16 pm ] |
| Post subject: | Re: PCV valve sucks |
is there any need to have one if you have a catch can>?, i replaced my tapet cover gasket on my turbo engine and there was a busted pcv valve sitting in there. no damage done, that i could see. should i replace it |
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