PCV Help
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
I think it's like this:http://images.google.com/imgres?imgu...a%3DX%26um%3D1
So back to the original question I would love to know if the bottom of his PCV breather looks like the one you have a link to that being of a hidden PCV valve. Maybe he has a breather on both sides and no PCV that's what I am trying to find out.
"Billet aluminum, the PCV Breather matches Earl's breather in appearance. The difference is the PCV Valve hidden inside. These breathers are available with either 3/8" slip–on hose connection or #6 AN hose end. Now you can eliminate that unsightly PCV valve."
Pro
Joined: Apr 2008
Posts: 596
Likes: 6
From: Irving Texas
Bottom line, excessive breather pressure is a result of blow-by....due to worn rings/valve guides(0ld engine).
Once I rebuilt my engine, you could see the breather inhale and exhale the gases at idle(I had chrome valve covers that showed this as a mist being reflected)
Once I rebuilt my engine, you could see the breather inhale and exhale the gases at idle(I had chrome valve covers that showed this as a mist being reflected)
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
You are probably correct my point is trying to make sure he has a working PCV system with a PCV on one side attached to manifold vacuum and a breather on the other to properly vent his motor.
If he does then he probably has problems like excessive blowby like has been mentioned a few times.
I know if you disconnect the PCV on one side you will probably get a mist of oil out your other breather on to the valve cover
If he does then he probably has problems like excessive blowby like has been mentioned a few times.
I know if you disconnect the PCV on one side you will probably get a mist of oil out your other breather on to the valve cover
Burning Brakes
Joined: Dec 2007
Posts: 952
Likes: 0
Melting Slicks
Joined: Mar 2008
Posts: 2,989
Likes: 198
From: Meriden CT
Unless it has a vented top with a filter that is just a PVC inside a billet aluminum housing that looks like a breather. The matching actual breather goes on the other side and it would look the same only no PCV and would have some vented holes around the base that you couldn't see from the top. Looking at the motor it would like it has the same thing on both valve covers but one would be a PVC and the other a breather thus making a crankcase ventilation work the way it is supposed to.
So back to the original question I would love to know if the bottom of his PCV breather looks like the one you have a link to that being of a hidden PCV valve. Maybe he has a breather on both sides and no PCV that's what I am trying to find out.
"Billet aluminum, the PCV Breather matches Earl's breather in appearance. The difference is the PCV Valve hidden inside. These breathers are available with either 3/8" slip–on hose connection or #6 AN hose end. Now you can eliminate that unsightly PCV valve."
So back to the original question I would love to know if the bottom of his PCV breather looks like the one you have a link to that being of a hidden PCV valve. Maybe he has a breather on both sides and no PCV that's what I am trying to find out.
"Billet aluminum, the PCV Breather matches Earl's breather in appearance. The difference is the PCV Valve hidden inside. These breathers are available with either 3/8" slip–on hose connection or #6 AN hose end. Now you can eliminate that unsightly PCV valve."
Yes, I know, that's why I posted that link. The thing on his motor looks like that, a PCV valve disguised as a breather (but we can see a hose), with a breather on the other side that spews oil.
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
First, the baffle worked. Well so far anyways. I haven't been able to take it out on a long drive with plenty of low manifold vacuum wot bursts, but so far, no oil out of the breather. Here is a picture with a new breather and no duct tape.
And here is a picture of the underside of my PCV valve:
Next, I'll do a baffle for the other valve cover.
Bee Jay
And here is a picture of the underside of my PCV valve:
Next, I'll do a baffle for the other valve cover.
Bee Jay
Last edited by Bee Jay; Jan 26, 2010 at 01:41 AM.
Thread Starter
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
I built the baffles for the passenger side tonight. I took pictures as I went just in case someone else wanted to do this.
I cut aluminum tubing into four 3" pieces.
The 3 1/2" bolts mount thru the tubes into the holes taped for center bolt valve covers.
Drill holes and mount the aluminum sheets that are cut 18x3".
Bee Jay
I cut aluminum tubing into four 3" pieces.
The 3 1/2" bolts mount thru the tubes into the holes taped for center bolt valve covers.
Drill holes and mount the aluminum sheets that are cut 18x3".
Bee Jay
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Racer
Joined: Feb 2007
Posts: 307
Likes: 0
From: liberty mo
That aint gunna help! oil mist filled blow by vapor pressure at wide open throttle and neither is additional PVC lines that don't function at low manifold vacuum.
Older race cars that are not allowed to fancy modern vacuum pumps resort to large diameter lines to a remote vented puke can.
Or how about a drain back vent cover.
http://www.moroso.com/catalog/catego...?catcode=38103
Older race cars that are not allowed to fancy modern vacuum pumps resort to large diameter lines to a remote vented puke can.
Or how about a drain back vent cover.
http://www.moroso.com/catalog/catego...?catcode=38103
