CCV MOD mod
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Senior User
Joined: Feb 2007
Posts: 351
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From: Duluth
CCV MOD mod
I am thinking of doing the CCV mod, but the idea of just venting the oil vapors onto the back of my truck frame or elsewhere doesn't sound like all that great of an idea. BUT but one of the car mags did an awesome crank vent mod using a breather canister for a dry sump system at bout 55$ JAZ 1-Quart Breather Tanks - JEGS it could be remote mounted on the core support, or I saw this item, JEGS Air Oil Separator - JEGS it could be plumbed in between the CCV and the intake inlet? and then bolted right onto the bracket that supports the crank breather tube that is stock on the truck. I like this as it would make everything very clean and easy! both of these are from Jegs.
Senior User
Joined: Feb 2008
Posts: 127
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From: Frisco, TX
The second advantage here is where the CCV enters in the air intake blocks some of the available space, causeing the intake to be less efficent.
Hotshot
Joined: Nov 2006
Posts: 11,288
Likes: 269
From: North of Greenville
To add to kawajockie's comments, which are correct, the vapors ingested back into the engine also displace the equivalent volume of fresh air, which results in a slight reduction in excess oxygen.
As for the vapors, if the hose is extended to the rear of the truck near the spare tire or fuel tank, the odors are generally not an issue, but you still get varying degrees of smoke from the re-routed tube depending on how much blow-by you have and which oil you use.
As for a trap, I have a picture of my own home-made trap in my gallery. PVC parts from Home Depot. many others have done the same thing with varying shapes and configurations. Guzzle has a good right-up on the same issue. Additionally, a few guys have taken the vapors from the trap arrangement and simply run them back into the intake in order to get rid of both the vapors and the smoke while simultaneously eliminating a majority of the oily stuff that makes the intake and boots so nasty.
As for the vapors, if the hose is extended to the rear of the truck near the spare tire or fuel tank, the odors are generally not an issue, but you still get varying degrees of smoke from the re-routed tube depending on how much blow-by you have and which oil you use.
As for a trap, I have a picture of my own home-made trap in my gallery. PVC parts from Home Depot. many others have done the same thing with varying shapes and configurations. Guzzle has a good right-up on the same issue. Additionally, a few guys have taken the vapors from the trap arrangement and simply run them back into the intake in order to get rid of both the vapors and the smoke while simultaneously eliminating a majority of the oily stuff that makes the intake and boots so nasty.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
I am thinking of doing the CCV mod, but the idea of just venting the oil vapors onto the back of my truck frame or elsewhere doesn't sound like all that great of an idea. BUT but one of the car mags did an awesome crank vent mod using a breather canister for a dry sump system at bout 55$ JAZ 1-Quart Breather Tanks - JEGS it could be remote mounted on the core support, or I saw this item, JEGS Air Oil Separator - JEGS it could be plumbed in between the CCV and the intake inlet? and then bolted right onto the bracket that supports the crank breather tube that is stock on the truck. I like this as it would make everything very clean and easy! both of these are from Jegs.
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Post Fiend
Joined: Feb 2008
Posts: 10,977
Likes: 5
From: Lancaster, Pa.
So here,s another question, the black hose that goes from the doghouse to the underside of the intake tube, plug this because you wont need that hole no more?
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Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
EDIT- were you talking about plugging the hole in the intake coupler? Go buy a 3" PVC or ABS (PVC is white, ABS is black) pipe coupler, or use some 4" exhaust tubing to fill the gap and get rid of the CCV intake coupler.
Postmaster
Joined: Mar 2008
Posts: 4,158
Likes: 0
From: Paramount, Ca
I need to figure the right route for me, I think I'm going to go with the catch can way. I had the intake tube off just last week and all the bottom side of the entire intake was coated with oil. Luckily I had a solvent tank near by and just let it sit for a few minutes. I need to do something, no sense in cleaning it up if I'm going to have to do it again.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Yes you must plug the hole on the intake tube, or remove the bracket where the hole is and replace it with a small piece of 4" straight pipe. You'll attach your 3/4" hose to the dog house to run the CCV vapors toward the back of the truck. Make sure the hose has a down hill angle to it so it doesn't freeze up in the winter.
Post Fiend
Joined: Feb 2008
Posts: 10,977
Likes: 5
From: Lancaster, Pa.
I did this, turned the dog box around, used the rubber 90 from the stock d-box and join the heater hose and loop it over the brake master cylinderto keep the oil blowbye in the tube to return to the dogbox and routed straight down next to the axle, no oil drips yet.
Up in the middle of the pic going to the master cylinder on a incline..
Up in the middle of the pic going to the master cylinder on a incline..
