I know this subject has been covered a lot, but im very curious does it do damage?? or does it do nothing at all??????

 

search -- there was a HUGE topic on this like a week or two ago

 

All i wanna know is if it does damage, if it doesnt please tell me....

 

If you meant the little filter that people put on their valve cover: oil vapors will collect on the underside of your hood.




[Modified by WOTTEG, 4:05 PM 2/24/2002]

 

so does this filter harm n e thing?? or is it just for looks???

 

anyone???

 

IT DOES damage.

 

You are a lazy one aren't you?

Do a damn search. You could have already found your answer, but you're apparently too lazy to do so.

If you put a breather on, your engine will instantly melt.

 

It has something to do with crankcase paressure. If you have a breather filter, your engine loses crankcase pressure resulting in premature wear of the piston rings.

Your engine WILL NOT INSTANTLY MELT, but damage WILL occur maybe after 20k miles or so.

 

i took the damn thing off lol, sorry for the trouble.....

 

i have been reading a lot of the archived topics on this, but i get contradicting answers. Has anyone come to a single, logical, and generally accepted answer to this question? I currently have the breather set up and I am beginning to wonder if this is not good for the car. Also, in the archived topics, it's hard to distinguish what they are referring to. It seems like there are multiple lines running from the valve cover to different areas. The one I am concerned with is the one from the intake to the valve cover. For the other lines, I just took off the metal bracket thingie and connected the hoses so that I have 1 hose for the intake to the valve cover, and 1 for who knows what but looks important. ALSO, what the crap is PCV and what does it do? Let me know the BEST setup for this. I didn't think this would be that difficult or confusing.

 

I'm a firm believer it will do damage. The crankcase will not get fresh air if a breather is used. The system works by supplying filter air to the valve cover hole and oil/air to released by the pcv valve into the intake manifold.

With the breather this system will not function properly. If you guys want a benefit, run a catch can. connect one side to the pcv valve and other to the intake manifold. You'll stop oil vapours going into the combustion chamber and lowering ron rating.

 

PCV = Positive crankcase Ventilator.

It opens up when crankcase pressure is strong enough to push open the valve. This lets the air flow from the intake, through the valve cover, through the PCV valve, and into the Intake manifold plenum. By doing this it helps regulate pressure and temperature in the crankcase.

A vital part of this system is the hose connecting the intake arm (Stock rubber tube) to the crank-case. This connection helps provide a positrive flow of air when the PCV valve is opened. A breather fillter only provides ambient air pressure. It makes the evacuation of gasses rely on suction from the intake plenum.

if you install the oil vapor separator, be sure to use a hollowed out pcv valve on top of the valve cover, and a functional one on top of the can.

 

Well i only had it on their for about a week and 1/2, do u think it would of did n e damage???

 

Not significant. Don't worry.

 

i've had mine on for 6 mo. or more. i hope i didn't kill the engine.....

 

Your engine is going to blow up in 10 secs!

 

yea, the whole point of the breather completly defeats the PCV system designed for tighter emissions and more complete consumption of blow by vapor. Theres about 30 posts with an amazing diagram that I can't seem to find that shows the proper flow of the blow by vapor from the crankcase, back into the intake and through the throttle body to be re-ignited

 

Here is a diagram from the Helms manual which shows the flow of FRESH AIR and BLOW-BY VAPORs. You can see that if you remove the BREATHER HOSE which connect the intake to the valve cover, you will disturb the flow of FRESH AIR into the crankcase. This will also allow the BLOW-BY VAPORs to exit through the valve cover (which is bad). HTH