[H2Oyard]

Since it was so dang cold outside today.....I installed a coolant filter setup on my truck. While I was putting it on, I noticed some black residue on the large aluminum tube that is on the passenger side of the radiator. It is on the inside edge of the tube at the lower bend. Is this normal.....or is something wrong with the tube, the lower boot, or :dunno:

Since tomorrow looks as cold as today.....I guess I'll install that B&W in the bed.....at least it'll be warm

 

[MikeWhit]

Patrick sounds like your intercooler tube....maybe someone with a later model will chime in but theres always residue in my intake tube from the crankcase vent (oil), I'm just not sure your late model has the same vent. Anyone? Anyone? Later Whit

 

[Goose350]

What Mike said.That would be your CCV. It is perfectly fine except for the fact that it will make everything dirty. This can be rerouted to keep everything clean.

 

[Goose350]

I tried finding you a clear cut description of the "CCV mod" but never really found anything. If you have any questions about it PM NCHornet. He is the man to talk to.

 

[MikeWhit]

Basically Patrick you unhook the hose to your intake from the box on your drivers side valvecover. Then plug the nipple on the intake and reverse the box, allowing you to hook pvc or copper tubing to the hose and run it along the truck frame. You want to run it pretty much to at least the back axle to keep the oil smell out of the cab. Most people put some kind of filter or plumb it to a can of some kind with steel wool inside to filter the oil residue out or you'll get a little drip where ever you park. I'll see if I can find a link to a writeup and post it, might be in the morning before I get the chance but will see what I can do. Later Whit

 

[MikeWhit]

How to Build a CCV Catch Can - Powerstroke Nation

Sorry it's from Powerstoke nation which is also a good bunch of guys but seem to be a little more into the racing scene. Later Whit PS hope I don't get flagged for this......just trying to help out.

 

[H2Oyard]

so basically the residue is leftover from the ccv system? I am familiar with the ccv system on a gas engine, is it the same on a diesel? and if I do vent that into a catch can, will that eliminate the residue altogether?

 

[MikeWhit]

Pretty much, the way I see it and remembering about opinions, the turbo actually kind of acts as a PCV valve the higher the rpm the more crankcase vapors it pulls off, just like the higher vacuum on a PCV. Maybe that will explain why there is always gonna be vapors.....the turbo pressurizing the cylinders actually causes more blowby, causing more crankcase vapors, causing more residue to the turbo. When I pulled the last engine out of my 97 I noticed that the residue was coked up a little behind the wheel in the turbo, the side next to the exhaust impeller. I'm probably gonna do the ccv mod to bleed it off to the rear of the truck later but just can't get over not having some type vacuum pull on the engine. A holdover from all those gasoline engines I guess. Later Whit