Oil Catch Can Install. Need some help
okay so from what I understand I'm suppose to run the tube from the pcv that original went straight into the IM to the inlet of the catch can and then from the outlet of the can to the IM. So the part I"m confused about is where do I connect or how to I hook up the other inlet that is on top of my valve cover.

I am just curious how I hook up that other tubing with this system. or do I not touch it. I am just wondering cause I notice oil will work its way out of there and find its way into my intake and then into my IM. any help would be great. I search and read lots but got a headache from not understanding it correctly. sorry for the crummy picture. :D

I am just curious how I hook up that other tubing with this system. or do I not touch it. I am just wondering cause I notice oil will work its way out of there and find its way into my intake and then into my IM. any help would be great. I search and read lots but got a headache from not understanding it correctly. sorry for the crummy picture. :D
your "white" hose is just for the breather. You can either connect it back to the intake or plug the intake nipple and put a breather filter on it.
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I wouldn't say excessive but I would say a drop or two would come out of it a week. just kinda bugs me.
I take the hose of thats connect to the valve cover and the intake and it will have a coating of oil going through it. and then a drop or two on the end.
I take the hose of thats connect to the valve cover and the intake and it will have a coating of oil going through it. and then a drop or two on the end.
I have had a breather on my h22 on the crankcase and a greddy catch can installed like you diagram shows for 6months now with no oil in the breather or any problems
cool thanks.. I'll have to run this setup for a bit and then check it out. but for some reason having it the way it is now I find oil will make its way up the valve cover inlet that connects to the intake. do you think it could be doing that when I have WOT and will cause pressure to start to suck it out that way like the pcv? or am I thinking crazy now
Ok i gotta question. When i put my turbo on, i had the problem of oil spraying out the breather. I then took the turbo off because of the seals going bad. Now that im back N/A when i get on it hard it still does the same thing and sprays out oil....So could this be my piston rings going bad? If i were to get a catch can would i be able to prevent this problem?
the catch can would only catch the oil from coming out of the breather, not fixing your problem. Do a leakdown test and you will find out if your rings are toast.
just a question...
was your motor tuned with the turbo? How long did you run the turbo?
just a question...
was your motor tuned with the turbo? How long did you run the turbo?
How do you go about doing a leakdown test?
I was actually running a hybrid type of thing. I had and FMU and a basemapped tune, because i was on stock injectors. I ran the turbo for around 5k miles but thats what i get with xs power lol.
I was actually running a hybrid type of thing. I had and FMU and a basemapped tune, because i was on stock injectors. I ran the turbo for around 5k miles but thats what i get with xs power lol.
Every engine has a bit of leakdown. Theoretically, air would have one direction of travel in the valve cover. In through the inlet that is attached to the air intake, and out through the PCV valve. However, I've never seen someone that installed a breather directly on the valve cover that didn't have an excessive amount of oil on the breather. That's why I use a catch can on that port as well on my track car.
From what I've seen, at high RPMs, the crank case (and thus the area under the valve cover) could become positively pressurized, however at high RPMs, the plenum does not have much, if any vacuum, so while the PCV valve does cause the air to flow one way through the PCV hose, it will not prevent air (with oil vapors) from going through the hose that runs from the valve cover to the intake tube. Make sense?
From what I've seen, at high RPMs, the crank case (and thus the area under the valve cover) could become positively pressurized, however at high RPMs, the plenum does not have much, if any vacuum, so while the PCV valve does cause the air to flow one way through the PCV hose, it will not prevent air (with oil vapors) from going through the hose that runs from the valve cover to the intake tube. Make sense?
so even though air will only travel through the crank case one way. sometimes you can't block the hot oil vapors that are in the crankcase and it will condense a little bit on the inside of the breather or hose that goes into the case thus this is the reason I have a slight build up of oil after a extended period of time. makes tons of sense now.
so having a well circulated system that can take the hot oil vapors out of the crankcase with/o hesitation will most likely eliminate the chances of it collecting on the inlet part of the crankcase?
so having a well circulated system that can take the hot oil vapors out of the crankcase with/o hesitation will most likely eliminate the chances of it collecting on the inlet part of the crankcase?
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schpiel
All Motor / Naturally Aspirated
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Jul 9, 2007 08:57 PM




