Check this out before spending $$$ on a catch can!
i use castrol start up... and use quite a bit of oil. but then agan i have a stoker that sees 3,000-3,500 cruising speeds very often. so i'm sure that has some effect on crankcase pressure.
well i just bought and installed one of the new valves ... we'll see how it works. I wont be able to give an accurate assesment on how it works for another 2 oil changes tho ... i'll be changing it here in about a week, and will completely dry out my catch can so i can see if its catching less oil or the same amount.
Ok well I've got about 400 miles on the new valve. The actual can part of my AMW catch can is still bone dry. But on the bottom of the filter element there is some oil residue that is starting to pool up. I've never checked my can in that short of an interval though, so this really doesn't give me any idea if this new valve is working any better. I'll keep checkin it though every 500 miles or so, and then at 5000 I'll be able to give a definite answer on how much better/worse it works.
https://ls1tech.com/forums/showthrea...vented+oil+cap
These 2 should go together then?
keep us posted FstBlkZ28
These 2 should go together then?
keep us posted FstBlkZ28
Originally Posted by bass685
https://ls1tech.com/forums/showthrea...vented+oil+cap
These 2 should go together then?
keep us posted FstBlkZ28
These 2 should go together then?
keep us posted FstBlkZ28
This would be a wise option. Combining the cap w/ the small orificed PCV valve would ensure that the pressure has proper ventilation.
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Originally Posted by bass685
hey FstBlkz28,
Any update on the oil situation?
Thanks
Any update on the oil situation?
Thanks
How the hell would you mount the PCV vertically though? It seems like that would help too.
Great thread! I don't have a real consumption issue but when I swap on my LS6 intake I want to do some "preventative maintenance" involving the PCV system.
I'm eager for an update, FstBlk.
I'm eager for an update, FstBlk.
Originally Posted by JoeyAnderson
Great thread! I don't have a real consumption issue but when I swap on my LS6 intake I want to do some "preventative maintenance" involving the PCV system.
I'm eager for an update, FstBlk.
I'm eager for an update, FstBlk.
Welp...just put my order in for the vented oil cap and PCV. I'll be doing a study on this as well...my car eats about 1-1.5 quart every 5K, and I always get about 1/4 cup or so of oil in my catch can during the same interval. We shall see...at least my intake stays fairly clean...before the catch can though 
Nasty.
Nasty.
Originally Posted by bass685
How much money in parts is required to convert to the ls6 valley cover/pcv set up?
Also what are all the parts required besides the cover itself
2001 Z28
Also what are all the parts required besides the cover itself
2001 Z28
http://www.ls1howto.com/index.php?article=18
I did the valley cover while I was installing an ls6 intake. Don't let the cutting of the block worry you. I used a dremel and some cutoff wheels and made sure I covered the valley with towels and taped up the intake ports on the heads.
The ls6 pcv setup is a vast improvement over the ls1. Coupled with a catch can, it should solve most of the pcv related oil consumption issues.
Alright guys ... I pulled my can and emptied the oil into a cup to give a better idea of how much oil is in there, this was after 2000mi. With the old valve, I would get just a hair under a 1/4 cup of oil in 5000.
Assuming there's a constant amount of oil getting let through this PCV, and the amount would be alil over double the amount right now, then it should be noticeably less than it was w/ the old valve. The line on the cup is the 1/4cup mark.
When I switched out the PCV valves I noticed that in the rubber boot that the valve sits in, there was a pool of oil. Considering the angle that my PCV valve sits at (downward towards the intake) and the fact that the bottom of this valve slopes into the hole (like a bowl with a hole in the bottom). If oil is pooling up at the base of the valve, its only a matter of time before it gets sucked into the hole. Here in about 2 weeks I will be changing out my oil, and plan to try and setup the PCV valve so that it has an UPWARD slant (if not completely vertically upward) so that gravity is working with the valve instead of against it (letting the oil fall into the hole after it pools).
Hope that helps guys
Assuming there's a constant amount of oil getting let through this PCV, and the amount would be alil over double the amount right now, then it should be noticeably less than it was w/ the old valve. The line on the cup is the 1/4cup mark.
When I switched out the PCV valves I noticed that in the rubber boot that the valve sits in, there was a pool of oil. Considering the angle that my PCV valve sits at (downward towards the intake) and the fact that the bottom of this valve slopes into the hole (like a bowl with a hole in the bottom). If oil is pooling up at the base of the valve, its only a matter of time before it gets sucked into the hole. Here in about 2 weeks I will be changing out my oil, and plan to try and setup the PCV valve so that it has an UPWARD slant (if not completely vertically upward) so that gravity is working with the valve instead of against it (letting the oil fall into the hole after it pools).
Hope that helps guys
Originally Posted by FstBlkz28
Alright guys ... I pulled my can and emptied the oil into a cup to give a better idea of how much oil is in there, this was after 2000mi. With the old valve, I would get just a hair under a 1/4 cup of oil in 5000.
Assuming there's a constant amount of oil getting let through this PCV, and the amount would be alil over double the amount right now, then it should be noticeably less than it was w/ the old valve. The line on the cup is the 1/4cup mark.
When I switched out the PCV valves I noticed that in the rubber boot that the valve sits in, there was a pool of oil. Considering the angle that my PCV valve sits at (downward towards the intake) and the fact that the bottom of this valve slopes into the hole (like a bowl with a hole in the bottom). If oil is pooling up at the base of the valve, its only a matter of time before it gets sucked into the hole. Here in about 2 weeks I will be changing out my oil, and plan to try and setup the PCV valve so that it has an UPWARD slant (if not completely vertically upward) so that gravity is working with the valve instead of against it (letting the oil fall into the hole after it pools).
Hope that helps guys
Assuming there's a constant amount of oil getting let through this PCV, and the amount would be alil over double the amount right now, then it should be noticeably less than it was w/ the old valve. The line on the cup is the 1/4cup mark.
When I switched out the PCV valves I noticed that in the rubber boot that the valve sits in, there was a pool of oil. Considering the angle that my PCV valve sits at (downward towards the intake) and the fact that the bottom of this valve slopes into the hole (like a bowl with a hole in the bottom). If oil is pooling up at the base of the valve, its only a matter of time before it gets sucked into the hole. Here in about 2 weeks I will be changing out my oil, and plan to try and setup the PCV valve so that it has an UPWARD slant (if not completely vertically upward) so that gravity is working with the valve instead of against it (letting the oil fall into the hole after it pools).
Hope that helps guys
Is the hose from the front passenger side valve cover to the TB necessary? I'm sure that sucks some damn oil into my intake as well... I just don't know its purpose.
is this the correct number fot the hose? i tried a few gm parts sites and came up with nothing?
10 inches of 5/16 ID Rubber fuel line from autoparts store OR 1x GMPN 12568010
Thanks
10 inches of 5/16 ID Rubber fuel line from autoparts store OR 1x GMPN 12568010
Thanks