CCV Mod
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
they have held up for 5-6 months for me, no problem. believe me, a 16 year old, i cant have this truck in the shop because of something broken, (that is why i got a 7.3 instead of a 6.oh 
) and i check everything frequently. i like to get under the hood and just play. a sandbox without sand.
http://img.photobucket.com/albums/v3...t/DSCF2106.jpg
http://img.photobucket.com/albums/v3...t/DSCF2098.jpg
) and i check everything frequently. i like to get under the hood and just play. a sandbox without sand. http://img.photobucket.com/albums/v3...t/DSCF2106.jpg
http://img.photobucket.com/albums/v3...t/DSCF2098.jpg
Senior User
Joined: Jan 2004
Posts: 200
Likes: 0
From: Gardnerville, NV
After seeing your pics strokin_it7.3, it makes a lot more sense what you were talking about. I didn't want to imply your way of doing the mod was questionable, I was just unsure about the wirenut and superglue. Thanks for the pics and ideas on how to complete this mod.
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
The only suggestion that I make that is different from strokin, is to replace the entire black plastic piece (that the CCV originally vented into) in the intake with a piece of exhaust tubing. I took the whole thing out and couldn't believe how restrictive is is. A piece of exhaust tubing has to flow a lot cleaner and more air. And, if you're going to have it out to plug the hole, why not just replace it? It also eliminates chances of a leak in the intake that would be after the filter. We all know how the dirty air can kill our turbos.
There are pics in my gallery of the CCV mod and where you can see the exhaust tubing I used to replace the stock plastic piece.
There are pics in my gallery of the CCV mod and where you can see the exhaust tubing I used to replace the stock plastic piece.
Hotshot
Joined: Jan 2002
Posts: 17,988
Likes: 207
From: La La Land
That piece of 4 inch diameter exhaust tubing is 3-1/2 inches long. Any decent muffler shop will have some of it laying around, and should cost you less than $5.00.
Best part is: It's not plastic!
Pop
Best part is: It's not plastic!
Pop
Senior User
Joined: Jan 2005
Posts: 345
Likes: 0
From: Monterey Park, California
Whatever you do don't restrict the CCV pipe. The stock setup you get a little positive crankcase pressure, and a little negative pressure depending on how much the intake was drawing. Now with the CCV mod it's all positive pressure since the intake is not drawing anymore air. Any restriction will increase the crankcase pressure such as the CCV mod hose is too small, or plugged up. Too much crankcase pressure will cause leaks from your seals. An extreme amout of crankcase pressure will blow your dipstick out, cause seals to fail, and you may even loose power cause the pistons are working against this extra pressure.
Elder User
Joined: Nov 2005
Posts: 796
Likes: 0
From: North Idaho
plugged ccv mod?
Originally Posted by Hello
Whatever you do don't restrict the CCV pipe. The stock setup you get a little positive crankcase pressure, and a little negative pressure depending on how much the intake was drawing. Now with the CCV mod it's all positive pressure since the intake is not drawing anymore air. Any restriction will increase the crankcase pressure such as the CCV mod hose is too small, or plugged up. Too much crankcase pressure will cause leaks from your seals. An extreme amout of crankcase pressure will blow your dipstick out, cause seals to fail, and you may even loose power cause the pistons are working against this extra pressure.
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Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
None for me either. The "mist" that comes out of the tube is usually pretty dry. I've got a catch can set up at the end of mine, and it has never had any trace of a liquid in it. I've had the CCV mod done for over a year now.
Senior User
Joined: Mar 2004
Posts: 297
Likes: 1
From: Mi, Middle of the Mitten
To get a true vacu-pan this is how you would mount the pipe in your exhaust.
You would cut the one end of the pipe at a 45deg. angle and the weld it in your exhaust at 45 deg. angle, keeping the 45 deg. bevel at a right angle of the flow.
Exhaust flow is right to left.
You would cut the one end of the pipe at a 45deg. angle and the weld it in your exhaust at 45 deg. angle, keeping the 45 deg. bevel at a right angle of the flow.
Exhaust flow is right to left.
Last edited by Craven; Jan 2, 2006 at 12:48 PM.
Senior User
Joined: Aug 2005
Posts: 149
Likes: 0
From: Plano Texas
The mod has been on our Excursion for almost 2 years with no clogging or pooling,I did however last fall replace the standard black coolant hose with the clear type which seems to flow abit better.
Just make sure that going from the valve cover to the exhaust end that it's all downward with no dips that'll cause pooling
Just make sure that going from the valve cover to the exhaust end that it's all downward with no dips that'll cause pooling
Senior User
Joined: Oct 2005
Posts: 339
Likes: 5
From: St. Louis, MO
JTHARVEY: I'll be heading past Columbia sometime next month on the way to KC. If you are still in need, I'll toss my Miller Bobcat in the bed with the leads, wire feeder and mig gun. If you have the pipe off and hole drilled in advance, I can hit it with a quick bead and be gone in less time than it will take to unroll the leads. Just let me know.
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Miescha, thanks for the offer!! I appreciate it, but I just found out yesterday that one of my friends, who is pretty readily available, just got himself a wire feed mig too. I asked him if he could do it, and he just said to let me know when.
Depending on the weather, I may try to get it done this weekend. If the rest of the parts I ordered show up, it'll be a nice weekend of working on the truck.
Depending on the weather, I may try to get it done this weekend. If the rest of the parts I ordered show up, it'll be a nice weekend of working on the truck.
