Closed crankcase ventilation

Mario65

Mario65

Hotrodicus Supersonicus
I am tired of cleaning up the mess from the valve cover breathers. I had a catchcan on my zo6 and it worked fine but I dont plan to have a pcv recirculating system. I dont want a pump either. I thought of trying something like these guys have.

I'd like to run a -10 an line from each valve cover to a catchcan with a breather on top. I think all the mist and crap should be cleaned up the time it exits the catchcan breather.

I was think of maybe using the socketles lines to a few fitting right into the can. Maybe something not too pricey but very clean looking.

Any ideas?


I even thought of going backinto the front of the turbo after an oil separator that way I could have some vacuum. But then wouldnt 2 -10an lines be free flowing enough?


A GP would be nice if someone would do it?

http://www.modularfords.com/forums/showthread.php?t=129876
 
clone 94

clone 94

New member
Re: Closed crankcase ventilation

Mario65 said:
I'd like to run a -10 an line from each valve cover to a catchcan with a breather on top. I think all the mist and crap should be cleaned up the time it exits the catchcan breather.]
Click to expand...

this is the setup i had. i only had a line coming to a home made catch can with baffles and a breather off one valve cover and the other valve cover was capped. worked fine and no mess, just a catch can to drain every now and then. it doesnt create any crank case vac, but it didnt seem to cause any probs for me

lots of guys who make there own catch can stuff it with stainless steel wool as a way to separate the oil and air. oil accumulates at the bottom, air escapes out of the breather
 
Mario65

Mario65

Hotrodicus Supersonicus
Re: Closed crankcase ventilation

clone 94 said:
this is the setup i had. i only had a line coming to a home made catch can with baffles and a breather off one valve cover and the other valve cover was capped. worked fine and no mess, just a catch can to drain every now and then. it doesnt create any crank case vac, but it didnt seem to cause any probs for me

lots of guys who make there own catch can stuff it with stainless steel wool as a way to separate the oil and air. oil accumulates at the bottom, air escapes out of the breather
Click to expand...

yea thanks
I think I just might plug one side also. Run a 10 an or larger off one side straight to the can. There wont be any vacuum but i dont have a blow by problem just a splatter problem.

Ilike this stuff
http://www.gzmotorsports.com/breather-tanks.html

http://www.gzmotorsports.com/accessories.html
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: Closed crankcase ventilation

why don't people then T in to the turbo oil return so you don't have to worry about the catch can filling? Put some kind of valve in and away you go :)
 
JSM

JSM

Active member
Re: Closed crankcase ventilation

Have exactly what you describe on my ty but double. 2 tanks 1 for each valve cover. I so far have gotten zero anything from the breathers. The -10 lines running to them is 3-4 ft in length so I suspect oil never gets to the tank. Never had any oil to drain either.

1 would have probably been enough, i just didn't want a line crossing over the engine, but I am strange.
 
Mario65

Mario65

Hotrodicus Supersonicus
Re: Closed crankcase ventilation

I just ordered the dagostino racing fitting.http://dagostinoracing.com/index.php?main_page=product_info&products_id=13990 It is 3/4 on one side to pop into a grommet on the valve cover(s) and -10 on the other. I have 2 coming. I plan to run that to a T and then to this thing:

http://www.et-performance.com/kv.html#CUSTOM_AMERICAN_&_METRIC_CRANK_CASE_BREATHERS

and then to a vented can. It looks like this thing creates vacuum on pulses and ends up making a pretty significant vacuum in the the crankcase. It just might suck all the oil back into engine off of all the engine parts everybody has been dealing with. Just kidding of course.
I might even block a valve cover and run just one line vent to the krankvent then the catch can. When I get it I will test it and see just how much vacuum it creates. It would be cheaper, cleaner and might keep all the seals even drier. We'll see.
 
blk00z28

blk00z28

Forced to by choice
Re: Closed crankcase ventilation

Quickstop [UK] said:
why don't people then T in to the turbo oil return so you don't have to worry about the catch can filling? Put some kind of valve in and away you go :)
Click to expand...

This is what I plan on doing, but rather use the drain at the bottom of the can that goes back into the pan.
 
Mario65

Mario65

Hotrodicus Supersonicus
Re: Closed crankcase ventilation

blk00z28 said:
This is what I plan on doing, but rather use the drain at the bottom of the can that goes back into the pan.
Click to expand...

The engine has no blow by. Without a pcv it has no pressure at all. I really think my main issue is that I have RPM(aftermarket) valve covers that have no baffles so they spit all over the breathers. I even put in baffled grommets and it didnt work. I did have a high mileage ls1 with bad blowby and I put a catch can instead of the pcv and it produced a clean return back to the throttle body. No more nasty maf or TB. It did collect some oil but I only needed to drain out a few ounces every oil change.

I think by the time the lines get to the can on the TY it wont collect any oil at all. We'll see. I cant see myself plumbing back to the pan not with this engine.
 
Flyin Ryan

Flyin Ryan

hated cuz he drives fords
Re: Closed crankcase ventilation

Luke said:
lol you visit the corral too ! the lounge over there is crazy
Click to expand...

Yup have owned fox bodys for years so i've been on there for along time as well and yes it gets crazy over there sometimes but fun
 
Mario65

Mario65

Hotrodicus Supersonicus
Re: Closed crankcase ventilation

Got the fittings from DAgostino racing. They are perfect. They fit in a standard grommet 3/4 inch. Nice and tight. I will come off of that -10AN to the can as soon as I get the rest of the stuff.

index.php
 
P

pauly78

New member
Re: Closed crankcase ventilation

I went the cheap way and got a $20 catch can on ebay. Ran the supplied hose from each cover and it works great, no leaks. My S-10 had just breathers with stock style chrome covers that were baffled and they leaked. PCV systems suck. They all end up blowing oil into the intake at some point in time.
 
Try Me

Try Me

New member
Re: Closed crankcase ventilation

blk00z28 said:
This is what I plan on doing, but rather use the drain at the bottom of the can that goes back into the pan.
Click to expand...

Carefull doing this. When I ran the vacuum pump on the 4.3 it did an awesome job of sealing up the motor and made a noticable difference in horsepower. I had thought about connecting the drain from the breather tank to the oil pan but i ran it without first to see what ended up in that breather tank. It accumulated condensation in there and the oil i drained out was always milky. I wouldnt want that oil going back into the engine.

Of course the vacuum pump pulled a little oil on purpose, that oil lubricated the pump (it was an Aerospace kit that we made brackets for.) So you wouldnt accumulate near as much oil in the breather tank as I did and really dont need to drain it back to the engine. Just keep an eye on oil levels as usual and drain the tank once in a while.
 
Mario65

Mario65

Hotrodicus Supersonicus
Re: Closed crankcase ventilation

Almost finished but this cured my last leak. The valve covers were more of a leak than I imagined. I ran the fitting from each valve cover through some nice 10an lines to a T then to where my catchcan will go. Its not here yet when it is Ill post some pics. There is no way I'd run greathers on the valve covers on anything again.

A buddy told me he ran some 3/4 inch plastic 90's at the valve cover to a 3/4 heater hose over to a spot on the fender where he put the breathers. Cheap and controls the mess.

DONT run a breather on the passenger side unless you have halon under your hood. A little oil on a wrap or cloth and your toast.
 
blk00z28

blk00z28

Forced to by choice
Re: Closed crankcase ventilation

Try Me, thanks for that tip. I hadn't considered that. Its to bad things don't work that easy huh.
Mario, the valve covers leaking more then you thought? Around the seal on the head, or the breather hole?
 
Mario65

Mario65

Hotrodicus Supersonicus
Re: Closed crankcase ventilation

I would clean the breather and it would fill up after about 30 minutes of driving and then drip out of the element onto the valve cover and down the side of the engine. There wasnt much air pressure but it would spit through the baffled grommet some how. Gone now and a clean garage floor with no cardboard!

I had a small valve cover leak at the head that was cured with "the right stuff and no valve cover gasket. Perfect seal.
 
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