CCV Mod questions...
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Elder User
Joined: Jun 2006
Posts: 764
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From: Gulfport/Biloxi, MS
CCV Mod questions...
Ive been reading alot about the ccv mod on here and still have no clue what it is. I assume it has something to do with the crank case ventilation. What is involved and what are the benefits of it?
Please dont tell me to search,as I already did. No matter what I search for it comes back with no results. I have been reading threads for the past hour and a half or so and still have no clue what this mod is. Thanks
Please dont tell me to search,as I already did. No matter what I search for it comes back with no results. I have been reading threads for the past hour and a half or so and still have no clue what this mod is. Thanks
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Those vapors have a lot of oily residue that gets into the charge air cooler. If your truck has any appreciable mileage, you can probably see the telltale signs of it at the CAC tube hoses.
Freshman User
Joined: Jul 2006
Posts: 44
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From: Coeur d' Alene, ID
So, when you do the mod, do you drip any oil out of it? I am up for the mod, but if it is going to drip any oil, I would rather not. So far I still do not have a single leak, and my garage really appreciates that!
Postmaster
Joined: Jan 2007
Posts: 3,418
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From: Circle Pines
Originally Posted by 01PowerStrokeF250
So, when you do the mod, do you drip any oil out of it? I am up for the mod, but if it is going to drip any oil, I would rather not. So far I still do not have a single leak, and my garage really appreciates that!
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Originally Posted by 01PowerStrokeF250
So, when you do the mod, do you drip any oil out of it? I am up for the mod, but if it is going to drip any oil, I would rather not. So far I still do not have a single leak, and my garage really appreciates that!
In actuality, you probably have a greater chance of oil leaking or other problems by leaving it connected! My '02 had only 60k on it when I got it and the orange CAC tubes under the Y-pipe were already leaking. That leads to oil running down the back of the engine, which eventually will drip. Look at the boots between the air tubes & intercooler (especially on the driver's side) -- if it's like mine, it's oil soaked and very dirty. It can eventually pop off.
I'll be cleaning the entire intake path & intercooler and replacing the boots shortly. The mod is definitely worth it IMHO.
Joe
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2002 7.3L F250 XLT CrewCab ShortBed 2WD
Hotshot
Joined: Nov 2006
Posts: 11,288
Likes: 269
From: North of Greenville
Futuresweets, below is a link to a good explanation and set of well illustrated instructions for the entire mod, including a "trap" in which to collect any liquid condensation/carryover.
http://guzzle.rbmicro.com/ccv1.html
By the way, welcome to FTE.
http://guzzle.rbmicro.com/ccv1.html
By the way, welcome to FTE.
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Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
I route mine to the exhaust. The pipe I welded into the exhaust enters at the "hump" above the axel. See the post below especially post #22 for the angle to put the pipe in. I did it and life is good.
https://www.ford-trucks.com/forums/4...questions.html
https://www.ford-trucks.com/forums/4...questions.html
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Postmaster
Joined: Jun 2006
Posts: 2,647
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From: Fulltime RVer
Originally Posted by F250-Newbie
Futuresweets, below is a link to a good explanation and set of well illustrated instructions for the entire mod, including a "trap" in which to collect any liquid condensation/carryover.
http://guzzle.rbmicro.com/ccv1.html
By the way, welcome to FTE.
http://guzzle.rbmicro.com/ccv1.html
By the way, welcome to FTE.
Hotshot
Joined: Nov 2006
Posts: 11,288
Likes: 269
From: North of Greenville
Originally Posted by aklim
I would think that if you vented it to the exhaust there would be a negative pressure.
The thing that would offset (to some degree) this larger exhaust pipe diameter would be the vapors from the combustion process in that is added to the air from the intake.
What would also then hinder the ability to induce a negative pressure would be the length of much smaller diameter hose that is routed frmo the CCV to the entrance point in the exhaust system (shorter run would hurt less, but then you're competing with hotter exhaust gases for pipe volume).
The whole series of plusses and minuses may end up being a wash.
The whole thing could be calculated for sure, but someone would ahve to go through the stoichiometry of the combustion process, generation of by-products, gas temperatures and cooling profiles, gas velocities, etc. Might be fun, but not sure it's worth the effort. It would be a whole lot easier to get manaometer readings from real world installations.
Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
I do have a 4 in MBRP pipe, muffler and all. I don't know about any calculation. Here is what I did. I lay on my back like a cheap hooker and the engine was warm in the spring/summer time. Exhaust was clear and hose output was cloudy. Insert hose in pipe and exhaust was slightly clouded, take hose out and it was clear. Repeat again and again and results were the same. Conclusion? There is suction even at idle with a 4 in exhaust.
Postmaster
Joined: Jun 2006
Posts: 2,647
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From: Fulltime RVer
Originally Posted by aklim
Exhaust was clear and hose output was cloudy. Insert hose in pipe and exhaust was slightly clouded, take hose out and it was clear. Repeat again and again and results were the same. Conclusion? There is suction even at idle with a 4 in exhaust.
This worked well, but my RPMs were usually in the 5K to 7K range. On my truck I have a US Gear exhaust brake mounted in the tailpipe, and when using it, the RPMs are high, but there is very little flow in the tailpipe so I'm afraid that positive pressure would back up into the CCV.
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Elder User
Joined: Jun 2006
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From: Gulfport/Biloxi, MS
Originally Posted by Izzy351
When you connect the hose as in the picture Alan posted, you can run it up over the brake booster so any liquid oil getting through will be more likely to drip back down the hose into the valve cover. It looks like his is just run straight down, though. Also, the breather element has one of those brillo-looking filters in it to keep any oil blow-by to a minimum, but there will be some.
In actuality, you probably have a greater chance of oil leaking or other problems by leaving it connected! My '02 had only 60k on it when I got it and the orange CAC tubes under the Y-pipe were already leaking. That leads to oil running down the back of the engine, which eventually will drip. Look at the boots between the air tubes & intercooler (especially on the driver's side) -- if it's like mine, it's oil soaked and very dirty. It can eventually pop off.
I'll be cleaning the entire intake path & intercooler and replacing the boots shortly. The mod is definitely worth it IMHO.
Joe
------------------------------------------
2002 7.3L F250 XLT CrewCab ShortBed 2WD
In actuality, you probably have a greater chance of oil leaking or other problems by leaving it connected! My '02 had only 60k on it when I got it and the orange CAC tubes under the Y-pipe were already leaking. That leads to oil running down the back of the engine, which eventually will drip. Look at the boots between the air tubes & intercooler (especially on the driver's side) -- if it's like mine, it's oil soaked and very dirty. It can eventually pop off.
I'll be cleaning the entire intake path & intercooler and replacing the boots shortly. The mod is definitely worth it IMHO.
Joe
------------------------------------------
2002 7.3L F250 XLT CrewCab ShortBed 2WD
