Kracka Vent help

[mdost03]

I'm betting your PCV line was getting pinched shut by the sharp bend it has to make, I had the same problem. Remedied it by getting a catch can to run the lines to and to make it easier to route back to the intake manifold and valve cover with less bends.

[mike55112]

I think blageo23 was having this problem has well, did you see his car on the dyno at the dyno day?

[goodhart]

Just want to make sure I'm understanding this correctly...

Without any of the valves installed, it does not smoke at all on decel after boosting, correct? But with both valves in, it smokes a lot? If so, then personally I'd remove one at a time, to figure out which one exactly is causing this. Then report back.

Also, your catch can isn't full is it?


Nope, catch can is bone dry. Also, I just put that on tonight temporarily, to see if it would help solve the smoking.

[goodhart]

I think blageo23 was having this problem has well, did you see his car on the dyno at the dyno day?

Not sure, the spring dyno day or the fall one? I was only at the spring one and about half of the cookout.

[asshanson]

I'm betting your PCV line was getting pinched shut by the sharp bend it has to make, I had the same problem. Remedied it by getting a catch can to run the lines to and to make it easier to route back to the intake manifold and valve cover with less bends.

That wouldn't be affected on boost, the valve(s) will be closed anyway. However, it would prevent air from escaping on decel, but it could still escape via the side breather.

[goodhart]

[quote=Halon;265225]
I'd remove one at a time, to figure out which one exactly is causing this. Then report back.
quote]

They each do it, I can have one on the breather and stock PCV, or one on the PCV and stock breather, still end up with the same result.

[goodhart]

Well, I got on it a little on the way to school this morning, and what do ya know, smoking like a chimney again! However, this is only on decel after peak boost (23psi) and its not as much smoke as before, but it's still smoke.

Pretty sure I will be taking these off my car now because it seems like it runs just fine without them, and I have no freaking idea why these are making the car smoke so much.

[scheides]

You never checked out or answered the question about the lines getting kinked?

Also, you have a breather on top of your catch can. You should block that off, because you are trying to provide vacuum to the can via the air intake pipe. Having that filter on the top of the can basically nullifies this.

[goodhart]

You never checked out or answered the question about the lines getting kinked?

Also, you have a breather on top of your catch can. You should block that off, because you are trying to provide vacuum to the can via the air intake pipe. Having that filter on the top of the can basically nullifies this.

Whoops, nope it wasn't/isn't kinked, I did make sure of that and even got some brand new hose so it wouldn't kink.

The filter, I will try yanking the filter and capping it tonight then, thanks for the info!

[Halon]

[quote=Halon;265225]

They each do it, I can have one on the breather and stock PCV, or one on the PCV and stock breather, still end up with the same result.

So you can put one in the PCV line, and leave everything else stock, and it smokes? But you remove it and it doesn't smoke? That seems very odd, considering putting one in the PCV line is essentially doing nothing except acting as a back up to the PCV.

But if that is true, then it sounds like a kinked line, or bad valve.

Do you have a good understanding of how the crank case ventalation system works on these cars, and exactly what you are affecting/changing when you install these valves? If you don't, I would recommend you research the topic (there's a few threads on here with a lot of info) so you can troubleshoot this much better yourself.