CCV mod variation?
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Senior User
Joined: Nov 2011
Posts: 110
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From: Monterey
CCV mod variation?
I can't remember where I heard this idea, and I'm pretty dang sure I can't claim it for my own. It might even be a really bad idea so I wouldn't want to claim it anyway.
Preface: I hate the stink of the CCV being open to atmosphere. Let's not even talk about the looks I get when atmospheric conditions are just right and it looks like I have a cloud of smoke coming out from under the truck. So, I'm wondering if creating a CCV mod variation that involves a closed, drainable container would be possible. Something like having the doghouse connected to a container the approximate size of a soup can (the inlet coming straight down into the container) and an outlet connected from the side back to the air intake. No oil condensing in the intake, plus the vacuum created by the air intake could ensure the CC is vented as effectively as possible.
Dumb idea? I'm no engineer (heck, I'm a sub-par shadetree mechanic at best), my current studies are in a very different direction, but in theory it could kill two birds with one stone. If there is space for something like that around the engine compartment anyway.
Preface: I hate the stink of the CCV being open to atmosphere. Let's not even talk about the looks I get when atmospheric conditions are just right and it looks like I have a cloud of smoke coming out from under the truck. So, I'm wondering if creating a CCV mod variation that involves a closed, drainable container would be possible. Something like having the doghouse connected to a container the approximate size of a soup can (the inlet coming straight down into the container) and an outlet connected from the side back to the air intake. No oil condensing in the intake, plus the vacuum created by the air intake could ensure the CC is vented as effectively as possible.
Dumb idea? I'm no engineer (heck, I'm a sub-par shadetree mechanic at best), my current studies are in a very different direction, but in theory it could kill two birds with one stone. If there is space for something like that around the engine compartment anyway.
Super Moderator
Joined: May 2004
Posts: 29,380
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From: Central Coast of CA
Nope!
Buncha guys have done this. I have all the parts for it minus the petcock. Been too lazy to source it and finish it.
There are a few threads here with pictures and step-by-step procedures.
Stewart
Buncha guys have done this. I have all the parts for it minus the petcock. Been too lazy to source it and finish it.
There are a few threads here with pictures and step-by-step procedures.
Stewart
Lead Driver
Joined: Jan 2007
Posts: 6,708
Likes: 5
From: Kiowa CO
Something like this. The top photo routes to atmosphere after the catch can scrubs oily vapor and the middle photo is designed to route back to the intake.
The bottom photo shows the catch can installed under the truck.
Note:When you route to atmosphere even with a catch can, you will still get some smoke from under the truck. The catch can isn't designed to eliminate that just catch the oily vapor.
The bottom photo shows the catch can installed under the truck.
Note:When you route to atmosphere even with a catch can, you will still get some smoke from under the truck. The catch can isn't designed to eliminate that just catch the oily vapor.
PREMIUM SPONSOR
Joined: Dec 2012
Posts: 750
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From: Oakdale, CA
Here is the one I made for my truck.
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Fleet Mechanic
Joined: Dec 2010
Posts: 1,546
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From: Wellington, Co
Mine is similar to ponyboy chris's. Mounted outboard of the frame behind the left tire splash guard. One hose from the dog house to the can, one from the can back to the intake where it originally went. Clean, neat, closed, seems to work.
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Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
This was my idea a few years ago but I couldn't figure how to get it to the other side of the engine without burning the hose up
Locomotive breath
Joined: Jan 2006
Posts: 1,354
Likes: 1
From: Mid Oh. Ponderosa
When I routed the hose for mine, I went up then over the brake boost cyl. then down along the frame rail. This will allow any oil to drain back in the v/c. But,, if you wanted to connect to the tail pipe somewhere down the line, you can cross over the trans. without it contacting the engine.
Fleet Mechanic
Joined: Dec 2010
Posts: 1,546
Likes: 9
From: Wellington, Co
I used the copper color scrub material, I could blow through the catch can no problem. There shouldn't be a significant restriction. As I understand it, the length of travel and the mesh cause the liquid to "condense" in the catch can.
Fleet Mechanic
Joined: Dec 2010
Posts: 1,546
Likes: 9
From: Wellington, Co
I used clear braided vinyl tubing from Home Depot, which is where I got all the pvc and fittings. I remember seeing it is hydraulic rated, don't know if better but it works. Many others use heater hose.
Postmaster
Joined: Dec 2010
Posts: 2,951
Likes: 4
From: Gary,Indiana
Here a photo of the catch can I made and I plumbed it back into the intake and it catchs about 1/2 oz about 2k miles. Now I used brass scrub pads in it. If I were to redo it I would use SS scrub pads and a upper baffle to catch more oil. I still have a little oil that makes to the IC pipes but not enough to really worry about but with a better design I feel there would be next to none. I also want to point out that I feel it is important to make sure that there is always negative crankcase pressure. Positive crankcase pressure can cause bad things to happen. I am just pointing out the what if's.
