Venting the valve cover
Thread Starter
Banned
Joined: Feb 2004
Posts: 7,252
Likes: 1
From: Canada
Venting the valve cover
Well, I was getting a good amount of oil in my motor from the valve cover hose that goes to the intake. So, I pulled it off of the intake and pointed the valve cover hose to the ground.
I didn't want to use a breather because from what I've heard bad things happen when the breathers clog.
Is what I'm doing, okay?
I'm unsure as to why I'm getting excessive blowby.. compression is 270 even across the board. Oh well.
I didn't want to use a breather because from what I've heard bad things happen when the breathers clog.
Is what I'm doing, okay?
I'm unsure as to why I'm getting excessive blowby.. compression is 270 even across the board. Oh well.
Honda-Tech Member
Joined: Dec 2001
Posts: 3,643
Likes: 1
From: assville, MI, USA
Re: (LSVTEC 91 Civic)
I wouldn't run an open system
There is some debate as to if the intake runs air into the valve cover, or pulls vapors out. Either way, you are reducing the PCV system's effectiveness by letting it run open. Now the only thing releasing crankcrase pressure is the pressure itself (ie: it is unaided by fresh air displacement, or vacuum).
Weld a slashcut tube into your exhaust at a 45 degree angle and run a hose to the valve cover breather. It will pick up some HP and prevent oil from getting into your system.
There is some debate as to if the intake runs air into the valve cover, or pulls vapors out. Either way, you are reducing the PCV system's effectiveness by letting it run open. Now the only thing releasing crankcrase pressure is the pressure itself (ie: it is unaided by fresh air displacement, or vacuum).
Weld a slashcut tube into your exhaust at a 45 degree angle and run a hose to the valve cover breather. It will pick up some HP and prevent oil from getting into your system.
Re: (LSVTEC 91 Civic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC 91 Civic »</TD></TR><TR><TD CLASS="quote"> 
I found this on summit for $30.. I'll go ahead and give it a shot. Obviously I can't use the breather, but I'll just connect the hose up to the valve cover.
</TD></TR></TABLE>
Sweet, I've been having the same issues myself.
I found this on summit for $30.. I'll go ahead and give it a shot. Obviously I can't use the breather, but I'll just connect the hose up to the valve cover.
</TD></TR></TABLE>Sweet, I've been having the same issues myself.
Honda-Tech Member
Joined: Dec 2004
Posts: 1,091
Likes: 0
From: OHH SEA ,CA
Re: (-=Zeqs=-)
ill let you in on a little secret, heard it works havent tired it...if some how you can tie the crank case pressure into your exhaust. still pulls out the air in the crank case. but you dont inhale the oil...get it if not i can explain more.
Senior Member
Joined: Jul 2005
Posts: 3,728
Likes: 0
From: Armonk, NY, USA
Re: (LSVTEC 91 Civic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSVTEC 91 Civic »</TD></TR><TR><TD CLASS="quote">
I found this on summit for $30.. I'll go ahead and give it a shot. Obviously I can't use the breather, but I'll just connect the hose up to the valve cover. </TD></TR></TABLE>
You don't have to order the whole kit--I just ordered the part that you weld into your header collector and the check valve--it was only like $20 from summit--why spend more when you aren't going to use all the pieces?
I found this on summit for $30.. I'll go ahead and give it a shot. Obviously I can't use the breather, but I'll just connect the hose up to the valve cover.
</TD></TR></TABLE>You don't have to order the whole kit--I just ordered the part that you weld into your header collector and the check valve--it was only like $20 from summit--why spend more when you aren't going to use all the pieces?
Thread
Thread Starter
Forum
Replies
Last Post
Lordofdark176
Honda Civic / Del Sol (1992 - 2000)
19
Sep 5, 2007 07:55 PM