PCV Issues
Burning Brakes
Joined: Nov 2021
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From: Old Dominion - VA
Okay, so yeah I’m confident I have it routed correctly but the direction of flow is the concern. I placed an external PCV inline with the intake manifold but I still blew my seals, so I’m very confused. I used one that was flared on both ends so I could use regular tubing. I can’t find any tubing for one of those PCV’s pictured. Does anyone have a source for getting that? This was my temporary “fix” that blew my crap up. Don’t mind the stupid plastic key on the clamp. You can also see my valve cover gasket popping out.
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That’s my primary concern. I checked it when I originally installed and blew through it to double check. I mounted it flowing INTO the intake manifold. I’ll check again later. Any chance the valve would be an issue versus the style of the OEM?
Burning Brakes
Joined: Nov 2021
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From: Old Dominion - VA
Here is basic PCV/catch can info.
https://www.radiumauto.com/Blog/Post/Catch-Cans-101-102
Melting Slicks
Joined: Nov 2013
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From: USA
Quick and easy sanity check to check the pcv valve direction is correct... remove hose from intake manifold. Suck on the hose, it should flow freely. Blow and there should be a lot of resistance/pcv valve will shut.
I think it was correct in the original photo, looked thru same as mine. Flow direction is from valley cover to intake manifold.
Just saw the post above mine, that's also valid!
I think it was correct in the original photo, looked thru same as mine. Flow direction is from valley cover to intake manifold.
Just saw the post above mine, that's also valid!
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Thanks guys. I am going to double check and then I may consider a different valve altogether. Elite engineering sells some.
On a separate note, if I had a small leak coming from timing cover where the RTV is applied, is it possible to fix by dropping the oil pan? I know it’s a big job but probably less of a job than taking the harmonic balancer off. I just finished an install of heads/cam and I fear I must not have RTV’d well enough/cleaned the oil pan off for a good seal and noticed a slight weeping on one corner where the 2 meet.
On a separate note, if I had a small leak coming from timing cover where the RTV is applied, is it possible to fix by dropping the oil pan? I know it’s a big job but probably less of a job than taking the harmonic balancer off. I just finished an install of heads/cam and I fear I must not have RTV’d well enough/cleaned the oil pan off for a good seal and noticed a slight weeping on one corner where the 2 meet.
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Melting Slicks
Joined: Nov 2013
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From: USA
I believe that would require moving the upper portion of the oil pan (2 piece design), which involves dropping the whole front subframe and whatnot. Never done it.....but that has to be more work than pulling the steering rack and balancer off again. Especially if you've already done it, should be able to knock it out in half the time.
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I believe that would require moving the upper portion of the oil pan (2 piece design), which involves dropping the whole front subframe and whatnot. Never done it.....but that has to be more work than pulling the steering rack and balancer off again. Especially if you've already done it, should be able to knock it out in half the time.
Burning Brakes
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I double checked valve flow and it was correct, into intake manifold. What else would cause both valve cover gaskets to do this? I had concerns putting them back together, but it’s been several weeks and a few dyno runs before it even happened. I noticed the gaskets have these little ribs on one side and smooth on the other but they aren’t side dependent so they don’t fit perfectly, I had to stretch them into place, but for them to last several weeks and happen shortly after I put the valve in place points to that. I had a little bit of oil in the catch can as well, leading me to believe it was indeed correct. Any other ideas here?
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Do y’all think where exactly the valve is placed matters? Like if mine is plumbed right off the valley pan by a couple inches and then just tubing rest of the way to intake manifold? I’m putting it back together as we speak with no catch can to make it simpler and eliminate any potential issues.
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Went back to OEM with a big Pcv valve routed directly from valley pan to intake manifold and drew a huge arrow on the tubing to show direction of flow so I don’t get it wrong.
However car is down for now as the original issue created a major leak at my oil pan so I’m going to be needing to so lower…and upper gaskets. I’m having back surgery Thursday so car is gonna be down for at least a couple months
However car is down for now as the original issue created a major leak at my oil pan so I’m going to be needing to so lower…and upper gaskets. I’m having back surgery Thursday so car is gonna be down for at least a couple months
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