Crankcase Ventilation Rerouting
Junior User
Joined: Feb 2006
Posts: 81
Likes: 0
I have to say, I don't agree with this mod. Giving up the vacuum effect to the crank case effectively gives up horsepower. It may leave a cleaner engine compartment or components, but think about this, no pressure build up in the bottom end means less oil leaks, better ring seal, and much less combustion contamination. Just my 2 cents....
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Former Vendor
Joined: Mar 2004
Posts: 4,362
Likes: 3
From: Hendersonville, NC
Originally Posted by Danno126
I have to say, I don't agree with this mod. Giving up the vacuum effect to the crank case effectively gives up horsepower. It may leave a cleaner engine compartment or components, but think about this, no pressure build up in the bottom end means less oil leaks, better ring seal, and much less combustion contamination. Just my 2 cents....
Posting Guru
Joined: Jul 2007
Posts: 1,233
Likes: 0
From: Las Vega$
Originally Posted by pstrang
Darn...major bummer. I got the nipple and checkvalve installed. However, I decided to upgrade the exhaust in the process to a MBRP 3.5" turbo to CAT and then 4" from CAT back. I placed the nipple in the section between the CAT and the muffler. Welded in at 45 degrees as directed, but the dang thing blows exhaust out the nipple instead of sucking air in. 
I double checked...it's positioned the right way (according to the install instructions).
45 \ \
========\ \============
--> --> -->
======================
The exhaust blowing past the nipple should be sucking air in according to the Bournelli (sp?) principle. I tried having my wife rev the engine to blow more air past, it just blows exhaust out the nipple harder. I'm also pretty darn sure I installed the high flow muffler the right direction too.
BTW, I discovered this problem when I noticed oil forming around the check valve. I disassembed the hose and checkvalve and determined that the exhaust was a way higher pressure than the crankcase, so the oil leaked out of the check valve because it had no where else to go.
Any ideas anyone? I'm at a loss.
I double checked...it's positioned the right way (according to the install instructions).45 \ \
========\ \============
--> --> -->
======================
The exhaust blowing past the nipple should be sucking air in according to the Bournelli (sp?) principle. I tried having my wife rev the engine to blow more air past, it just blows exhaust out the nipple harder. I'm also pretty darn sure I installed the high flow muffler the right direction too.
BTW, I discovered this problem when I noticed oil forming around the check valve. I disassembed the hose and checkvalve and determined that the exhaust was a way higher pressure than the crankcase, so the oil leaked out of the check valve because it had no where else to go.
Any ideas anyone? I'm at a loss.
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Posting Guru
Joined: Nov 2006
Posts: 1,154
Likes: 2
I realize this site shows the CCV reroute mod(with pics) on a 7.3, still some good information that can be used on the 6.0 though along with a lot of other stuff...
http://guzzle.rbmicro.com/index.html
http://guzzle.rbmicro.com/index.html
Junior User
Joined: Nov 2007
Posts: 75
Likes: 0
From: lawrenceville,ga
Originally Posted by ozx3+1
For a long time, now (search the thread) and they may never return in their original form...
the more important question here is why are they gone and can they be gotten back?
Posting Guru
Joined: Mar 2006
Posts: 1,798
Likes: 2
From: SoCal, SD CO. East
Originally Posted by brian97cobra
the more important question here is why are they gone and can they be gotten back?