I know im beating a dead horse here but... what are the benefits of the CCV mod. are they worth the work to do the ccv. and how do u actually do the ccv mod??

 

It keeps oil from circulating back through your motor, especially helpful on trucks with intercoolers because the oil going through the I/C can make it lose efficiency. It's easy to do- pull the CCV coupler from the intake and disconnect the hose from the CCV valve on the valve cover (you'll need a piece of 4" OD something to take the place of the CCV coupler in the intake). Then just get some 3/4" hose and run it down under the truck, or just plug the CCV. I'm sure someone will be along soon with a better description and pics for you. Some (like tjbeggs) have even come up with a catch tank setup for the CCV, I plan on just plugging it off.

 

I wouldn't plug the CCV. It can cause crankcase pressure to build up and blow seals. You can run a hose down the frame rail to dump the fumes to the rear, plumb it into the exhaust or rig up a catch tank.

 

The stock set up directs the engine crank case fumes into the inlet of the turbo. In therory it is suposed to burn these fumes as they go through the turbo but all it does is get everything oily.

The mod consists of: MY METHOD, there are others.

01) Disconnect the little hose from the doghouse (the little box on RVC)

02) Turn the doghouse 180* so the hose fitting is towards the fire wall.

03) Connect 3/4" hose to the doghouse (I used a new short piece and a plastic 90* elbow) and run this hose up & over the brake Vac unit and back towards the rear of the vehicle. By running it over the brake unit, should vapors turn to liquid they will run back into the VC. You want to avoid low spots where liquid could settle and plug the system.

04) The hole in the aluminum intake tube must be plugged. I fashioned a light piece of aluminum the shape of the area to be plugged, used the same screw and sealed it with grey ATV.

05) There are several options as to what to do with the other end of the 3/4" hose. I made a filter can with some green scrub pads as a filter.

Others have re-routed the vapors back into the exaust system. Others just let the vapors be vapors into the atmosphere. Your call, but I would suggest that you take the hose at least to the rear axel so fumes don't enter the cab.

There will be others that will give you there methods as well.

Rog

 

I'll have to take a closer look at Tim's setup with the catch tank, my thought on plugging it was it would keep any liquid that might get blown out from being lost, but Rog's method is probably better/safer than plugging the CCV now that I think about it.

 

Yep, you never want to just plug a CCV. Now the choice of where to send it...

 

I bought a weld-in exhaust fitting and check valve from Summit for running it to exhaust. Pics in gallery. I was going to do the mod last weekend but it got pushed out until I address the problems with my front end (my truck's front end, I mean).
-Ish

 

Running it into the exhaust is the best way. All you have to do is weld a pipe coupling into your downpipe on a 45 de angle so the cc fumes actually get sucked out from the exhast. Keep the distance from your ccv to your 45 deg fitting as short as possible.
This is what I have done on my 66 f100, from both valve covers to the collecters on the headers.
You will never have to screw with it again.

 

ish:

Why the check valve? Enlighten us, what are you up to??? What is it that you don't want going back to the engine??Huh, huh, huh

Rog

 

As long as you weld the fitting to your exhaust on a angle there is no need for the check valve.
A check valve in the system can act as a blockage, because all check valves have a cracking preasure.

 

I just ran mine out the back behind the right rear tire. That way you never smell it.

 

This link contains a few wrong ways of doing it and only one right way IMO.
putting it into the exhaust.... that is.

https://www.ford-trucks.com/forums/5...ccv-flack.html

 

Wow Cuda I love that new avatar.

The only problem I could see about the exhaust is the chance of pumping exhaust into the ccv. What if you were in deep water or mud and the pipes were under water would the exhaust take the easiest route thru the ccv? Just mt .02

 

Easy solution......STACKS!!!

No but really, good thought Neal! I suppose that could be a very real situation.

 

Thanks.
Very helpful information. I'll post pics of the process and am planning on welding the nipple just behind the flange coupling at the end of my downpipe, in the cat delete section. I will get around to some time after I figure out if I need to warranty my tranny...
- Ish