Can somebody tell me what the heck these are for and why anybody would use one...??



From http://www.rtec-usa.com/

 

Uh, use a catch can. The breather totally messes up your PVC system. The intake needs air drawn in from the valve cover.

 

Flux, get an oil catch can. I collect about 3-4 tablespoons of oil in my catch can in between oil changes.

The catch can connects to the PVC and not the valve cover breather unlike these valve cover breathers. There is some oil that gets sucked into the intake system from the valve cover breather, however, there is more blow by from the PVC.

 

whats an oil catch can for? dose stock Rs have this?

 

i don't think stock r's have it, but would like to know more about it

 

more info plz - my R has one of those on it (Black Dragon installed it before i bought the car)

 

Supposedly, these breather filters are used to eliminate the use of the hose and reduce carbon deposits in the throtle body, intake manifold and valves due to the oil vapors that are sucked from the valve cover through the intake. So it makes your air intake cleaner.


[Modified by Tweety R, 8:24 PM 9/28/2002]

 

breather filters suck.

catch cans catch oil, and prevents it from reentering thru thottlebody.

stock ITR's do not have these, and imho dont need these.

 

They are completely unnecessary.

I don't have a catch can or a breather filter and my TB stays clean as a whistle.

 

how can you tell if your TB stays clean as a whistle? I sure hell can't.

anyhow there is VERY little oil from a stock motor that flows thru that valve into intake.

and, I was given some good examples of how crappy the breather filters are by cetane in person

 

Also, keeping the stock hose that goes from the valve cover to the intake helps to lubricate the throtle body and other parts due to the oil steam.

 

Hmm... thats the first time I've ever heard this reasoning before... Interesting...

Breather filters are also illegal in California...

 

On a boost car maybe. But since most you guys are NA, just keep the hose going to the intake arm.

 

I read it on a Honda Builder Handbook.

 

o.k. so this is the picture i got so far, - stay away from breather filter - lived without one and can continue to do so

now for the oil catch can - if it isn't nessesary for stock itr. under what condition/mods would it be nessesary or good to have? and any downsides from catch can?

 

Catch cans, besides the benefits on your engine under racing conditions, also is good to avoid spills and keep the track safe and clean.

Edit: Not really nescessary on a stock vehicle under normal driving conditions.


[Modified by Tweety R, 9:28 PM 9/28/2002]


[Modified by Tweety R, 9:29 PM 9/28/2002]

 

See the bottom of p 18 in the thread that never dies.
https://honda-tech.com/zerothread?id=163845&page=18

 

Take off the intake tube and look.

 

Pics of a catch can?

 

I own a breather filter already but it's not on my car. Sooo, bottom line is use it or not???

 

"quote:
--------------------------------------------------------------------------------
Also, keeping the stock hose that goes from the valve cover to the intake helps to lubricate the throtle body and other parts due to the oil steam.
Hmm... thats the first time I've ever heard this reasoning before... Interesting...
Breather filters are also illegal in California...
--------------------------------------------------------------------------------

I read it on a Honda Builder Handbook. "

I guess you can't believe everything you read<LOL>. Air flow is supposed to go from air intake to cam cover, NOT from cam cover to air intake. If you are getting oil in your TB from the cam cover, you have a problem----usually a poorly designed aftermarket intake.

John

 

maybe you guys can help me out on this one. I do not know this for sure but it seems very likely that this is happening; anyways...I use to run a little breather filter on my valve cover but after doing some research I found out that it was actually not a good thing to use, so I took it off and reconnected the hose to the intake pipe. Ever since I reconnected the hose....it seems as if I burn a lot of oil in between oil changes. I'm thinking about placing the breather filter back on to see what happens but all the research i've done says I shouldn't put the breather filter on. What do you guys think? I doubt that it is my rings but we'll see.

 

ok guys...lets get a few things straight..

that is not a breather....

that is connected to the inlet elbow to pressurize the engine to aide in the evacuation of crankcase pressure...

pcv is vented in the backside and routed to the intake manifold..

the stock pcv works fine...but should be routed to a catch can so you dont blow smoke on the track..

 

I think you need to research, read, or just ask to a tech mech. about what you said.

You're completely wrong. The valve cover is under certain pressure wich is controled by the pcv valve. That pressure is caused by two factors: Oil vapors from high temperature and crank and pistons movement. These vapors are sucked out by the intake vacuum trough the hose that goes from the valve cover to the intake hose in order to be eliminated or burned by the combustion process. Yes, if oil is comming out of the valve cover, evidently there is a problem but, that's not the case here. And, the design of the intake is irrelevant.

Peace.

 

uh..ok


[Modified by EPGONZALEZ, 7:28 PM 9/29/2002]