How's this look? (Catch can)
I've always seen the line from the valley cover connected to the line from the valve cover with a T, then ran to the catch can, from there to the TB. That way, there should be no oil. Although, I'm hearing more and more people with catch cans still getting oil in the intake. Mine is getting all capped off and two filters ran on the valve covers.
Thread Starter
Launching!
Joined: Dec 2004
Posts: 288
Likes: 0
From: California
Originally Posted by silverbandit0996
JL WS6 do you have a pic of your setup?
NO I don.. but I can describe it:
Take all the connections for the factory pcv and cap every one of them. rip that little hose going from the passengers valve cover to the TB and rip it off and cap it too. Now, the nipple that's sticking out from the ls6/ls2 valley cover, run a hose from that, to the port on the side of an amw can. now go to autozone, get one of those little cheap filters, and stick it on the top of the amw can. You can test it by blowing thru the hose that attaches to the valley cover, it should be easy to do, so pressure has a way to escape.
Next time someone is at my house with a digital camera, I will make a point to have them take a pic of it... maybe I"ll try to get a pic (or a video with my wife's christmas present) and I will put it on here for all to see.
JL ws-6, you're giving bad advice telling him to yank the fresh air tube (goes from throttle body to valve cover).
That line flows air INTO the crankcase, which is why it's a "Postive Crankcase Vent" and not just a "Vent". The line behind the throttle body is always at a lower pressure than the line plugging into the throttle body. This pulls a vacuum on the crankcase and allows fresh air to pass into the crankcase and purge the gasses.
The only time that line *might* be flowing air from the crankcase into the throttle body is at WOT when the pressure is almost equalized across the TB blade.
If you're running a breather, delete all lines, if you're running a catchcan, keep 'em.
That line flows air INTO the crankcase, which is why it's a "Postive Crankcase Vent" and not just a "Vent". The line behind the throttle body is always at a lower pressure than the line plugging into the throttle body. This pulls a vacuum on the crankcase and allows fresh air to pass into the crankcase and purge the gasses.
The only time that line *might* be flowing air from the crankcase into the throttle body is at WOT when the pressure is almost equalized across the TB blade.
If you're running a breather, delete all lines, if you're running a catchcan, keep 'em.
Thread Starter
Launching!
Joined: Dec 2004
Posts: 288
Likes: 0
From: California
Well, catch can is doing just that, catching the oil... It would have helped if i would of tightend the buttom of it before a little better, it leaked all over my mother in laws drive way! 
Lucky for me i washed it all off before she got home
Here's the thing, yes the catch can filter's, yes the catch can catches oil-BUT it does not stop the oil consumption!
It only catches it! I still have a oil cunsumption problem, filterd or not, its still missing from the engine and its in the damn catch can-How does that help me??? It doesnt...
I need to take a picture of it for all of you to see it... Just today in less then a 100 miles, that little can is 1/3 full. This pig is chugging that ****
I guess the can was a waste of money, but atleast it looks cool huh
Lucky for me i washed it all off before she got home
Here's the thing, yes the catch can filter's, yes the catch can catches oil-BUT it does not stop the oil consumption!
It only catches it! I still have a oil cunsumption problem, filterd or not, its still missing from the engine and its in the damn catch can-How does that help me??? It doesnt...
I need to take a picture of it for all of you to see it... Just today in less then a 100 miles, that little can is 1/3 full. This pig is chugging that ****
I guess the can was a waste of money, but atleast it looks cool huh
The purpose of the catch can is to keep the oil out of the intake tract, not to stop oil consumption. All that oil is spraying into your charge mixture and causing mad detonation. THIS is the reason why people do it.
Now, 1/3 full on that thing in 100 miles is rediculous. I notice that you don't have a PCV valve in that line (between catch can and valley cover), could be a big part of your problem. Get one pronto and install it the correct direction. As someone else mentioned, the LS6's did come with a PCV valve in that short *** line.
Now, 1/3 full on that thing in 100 miles is rediculous. I notice that you don't have a PCV valve in that line (between catch can and valley cover), could be a big part of your problem. Get one pronto and install it the correct direction. As someone else mentioned, the LS6's did come with a PCV valve in that short *** line.
Originally Posted by TheBlurLS1
JL ws-6, you're giving bad advice telling him to yank the fresh air tube (goes from throttle body to valve cover).
That line flows air INTO the crankcase, which is why it's a "Postive Crankcase Vent" and not just a "Vent". The line behind the throttle body is always at a lower pressure than the line plugging into the throttle body. This pulls a vacuum on the crankcase and allows fresh air to pass into the crankcase and purge the gasses.
The only time that line *might* be flowing air from the crankcase into the throttle body is at WOT when the pressure is almost equalized across the TB blade.
If you're running a breather, delete all lines, if you're running a catchcan, keep 'em.
That line flows air INTO the crankcase, which is why it's a "Postive Crankcase Vent" and not just a "Vent". The line behind the throttle body is always at a lower pressure than the line plugging into the throttle body. This pulls a vacuum on the crankcase and allows fresh air to pass into the crankcase and purge the gasses.
The only time that line *might* be flowing air from the crankcase into the throttle body is at WOT when the pressure is almost equalized across the TB blade.
If you're running a breather, delete all lines, if you're running a catchcan, keep 'em.
I agree, if you want to run the can with a pcv system leave all the lines.. but it's either leave them all, or remove them all, there's no in between.
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Verdad Gallardo Thread Starter
Launching!
Joined: Dec 2004
Posts: 288
Likes: 0
From: California
Originally Posted by TheBlurLS1
The purpose of the catch can is to keep the oil out of the intake tract, not to stop oil consumption. All that oil is spraying into your charge mixture and causing mad detonation. THIS is the reason why people do it.
Now, 1/3 full on that thing in 100 miles is rediculous. I notice that you don't have a PCV valve in that line (between catch can and valley cover), could be a big part of your problem. Get one pronto and install it the correct direction. As someone else mentioned, the LS6's did come with a PCV valve in that short *** line.
Now, 1/3 full on that thing in 100 miles is rediculous. I notice that you don't have a PCV valve in that line (between catch can and valley cover), could be a big part of your problem. Get one pronto and install it the correct direction. As someone else mentioned, the LS6's did come with a PCV valve in that short *** line.
Either way, its re-damndiculous
a pcv in the middle of the line? What type? I dont think ive ever seen a pcv that doesnt connect to the end of the line into a valve cover.
Originally Posted by TWISTEDTA
Im pretty sure some made it to the intake. I pulled the line and it was coated with oil on the inside-Most of it was caught by the can though-And the drive way
Either way, its re-damndiculous
a pcv in the middle of the line? What type? I dont think ive ever seen a pcv that doesnt connect to the end of the line into a valve cover.
Either way, its re-damndiculous
a pcv in the middle of the line? What type? I dont think ive ever seen a pcv that doesnt connect to the end of the line into a valve cover.
I was forced to do this because my old PCV hoses were falling apart. Now I run a breather and have never looked back.
Thread Starter
Launching!
Joined: Dec 2004
Posts: 288
Likes: 0
From: California
Originally Posted by TheBlurLS1
One end of my PCV was small enough to slip inside some 3/8" fuel line (which it looks like you have), the other end I slipped inside a big piece of hose that I robbed from my AIR system, then used the big piece of hose as a coupler and sliped the other side of the 3/8" fuel line inside of that. Took some finaggling, but I got it.
I was forced to do this because my old PCV hoses were falling apart. Now I run a breather and have never looked back.
I was forced to do this because my old PCV hoses were falling apart. Now I run a breather and have never looked back.
here's a picture of the inside of my catch can, maybe i exaggerated on the 1/3 in a 100 miles... I think my depth perception is on crack lol...
The stuff in there looks gross
The hose on the NON VACUUM side of the TB won't suck much oil from the valve cover, compared to the line on the vacuum side.
I have 50,000 miles on a clear hose and there is no sign of oil going through that line on my 98 car. (but it does not use more than 1/2 quart in 3,000 miles)
Ryan
I have 50,000 miles on a clear hose and there is no sign of oil going through that line on my 98 car. (but it does not use more than 1/2 quart in 3,000 miles)
Ryan
Joined: Apr 2004
Posts: 1,378
Likes: 14
From: Atlanta, GA Ft. Walton Beach, FL
confussed I'm like so confussed tubes like going everywhich way?
some long going around the AC condenser others w/ short tubes?
one has the PCV after the can one before.
one enters the top other enters the side?
not to mention a drain petcock.
just confussed.
some long going around the AC condenser others w/ short tubes?
one has the PCV after the can one before.
one enters the top other enters the side?
not to mention a drain petcock.
just confussed.
