PCV
Thread Starter
Team Owner
Joined: Dec 1999
Posts: 26,554
Likes: 257
From: Florida
2021 C2 of the Year Finalist - Modified
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St. Jude Donor '03 thru '26
PCV
I would like to change to the Edelbrock Valve Covers which uses the PCV hole in the passenger's side cover as the oil filler hole capped with a breather. Therefore, the hose going from the PCV to the bottom of the air cleaner is eliminated.
Seems as if I read a rather technical discussion about this sometime ago, but cannot remember the details.
So, is there a downside to just using a breather?
Seems as if I read a rather technical discussion about this sometime ago, but cannot remember the details.
So, is there a downside to just using a breather?
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Re: PCV (OHSIXX)
Without the pcv you will get burning oil fumes coming out the breather. The pcv sucks air through the engine with air coming in the breather. I would not recomend running without a pcv unless you like fumes. :U
Burning Brakes
Joined: Jul 2001
Posts: 1,160
Likes: 0
From: Ajax Ontario
Re: PCV (Fevre)
I think if you mean that you intend to hook up the PCV as normal, but rather than the factory style breather (vent tube up to air filter) you plan to run the open style breather, you'll be fine. This will properly vent the crankcase. If Fevre (rather than me) understood you correctly than I support his advice. You definitely need a functioning PCV system. I have the open style breather on pass. side, combined with the stock PCV fitting and hose on the driver side.
Thread Starter
Team Owner
Joined: Dec 1999
Posts: 26,554
Likes: 257
From: Florida
2021 C2 of the Year Finalist - Modified
C2 of the Year Finalist - Modified 2020
C2 of Year Finalist (performance mods) 2019
St. Jude Donor '03 thru '26
Re: PCV (68shark)
Straighten me out. All I want to do is eliminate the hose to the air cleaner and put a breather in the passenger's side hole.
Any downside?
Any downside?
Team Owner
Joined: May 2001
Posts: 29,745
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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
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St. Jude Donor '06-'10, '13
Re: PCV (OHSIXX)
Straighten me out. All I want to do is eliminate the hose to the air cleaner and put a breather in the passenger's side hole.
Any downside?
Any downside?
Check the breather that you buy. I found one at a Pep boys that was a nice looking chrome unit that had a rounded top and breather holes at the bottom around the mounting tube. Inside was this nice white foam that was to act as the filter.
However, the design of it was wrong. When they punched the opening in the mounting tube up into the breather element, it pushed the white foam away from the holes for the incoming air. What that did was to let completely unfiltered air to enter your engine crankcase.
Now imagine running down a gravel road or driving in a dust storm (common out here in the late summer), and that your engine is sucking in un-filtered air directly into the crankcase --- :U
Yes, you can run a breather instead of the factory air pipe, but make sure it is a quality breather that filters all the air.
P.S. Some states do not allow the change from the air tube from the valve cover to the air cleaner housing. It is considered part of the emissions system and I got dinged on it last year.
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Re: PCV (Fevre)
Sorry, I read what I wanted to, not what you wrote. :bb No problem getting rid of the vent tube by adding a breather, just make sure you plug the hole in base or change the base.
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Racer
Joined: Nov 2001
Posts: 370
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From: Timmins ON
Re: PCV (BSeery)
Check the breather that you buy. I found one at a Pep boys that was a nice looking chrome unit that had a rounded top and breather holes at the bottom around the mounting tube. Inside was this nice white foam that was to act as the filter.
However, the design of it was wrong. When they punched the opening in the mounting tube up into the breather element, it pushed the white foam away from the holes for the incoming air. What that did was to let completely unfiltered air to enter your engine crankcase.
Now imagine running down a gravel road or driving in a dust storm (common out here in the late summer), and that your engine is sucking in un-filtered air directly into the crankcase --- :U
Yes, you can run a breather instead of the factory air pipe, but make sure it is a quality breather that filters all the air.
P.S. Some states do not allow the change from the air tube from the valve cover to the air cleaner housing. It is considered part of the emissions system and I got dinged on it last year.
However, the design of it was wrong. When they punched the opening in the mounting tube up into the breather element, it pushed the white foam away from the holes for the incoming air. What that did was to let completely unfiltered air to enter your engine crankcase.
Now imagine running down a gravel road or driving in a dust storm (common out here in the late summer), and that your engine is sucking in un-filtered air directly into the crankcase --- :U
Yes, you can run a breather instead of the factory air pipe, but make sure it is a quality breather that filters all the air.
P.S. Some states do not allow the change from the air tube from the valve cover to the air cleaner housing. It is considered part of the emissions system and I got dinged on it last year.
Thread Starter
Team Owner
Joined: Dec 1999
Posts: 26,554
Likes: 257
From: Florida
2021 C2 of the Year Finalist - Modified
C2 of the Year Finalist - Modified 2020
C2 of Year Finalist (performance mods) 2019
St. Jude Donor '03 thru '26
Re: PCV (NorthVette)
Thanks for your very valuable input. I ordered everything this afternoon, so hope to have it soon.
BTW, I put on the Edelbrock 14 inch Air Cleaner yesterday. Gosh! It changed the entire complexion of the engine compartment. So, the valve covers will be iceing on the cake. Again, thanks! Mark
BTW, I put on the Edelbrock 14 inch Air Cleaner yesterday. Gosh! It changed the entire complexion of the engine compartment. So, the valve covers will be iceing on the cake. Again, thanks! Mark
