So, want an easy way to vent your block to atmosphere and not worry about oil entering your system? Want to do it on the cheap? Retain the PCV valves on the covers? How does 3 minutes to convert to legal for inspection sound? Tired of strange detonation and 1/2 quart of oil disappearing every 500 mi?

Read on.

You will need to purchase the following from your local parts store:

1 valve cover vent filter (large, found in classic car section)
1 valve cover vent filter (small, found in ricer bling section)
1 package assorted large HELP! rubber block-off plugs, large plugs
1 package black zip-ties

Do not crap your pants. This is easy. The best time to consider re-routing the PCV is during the process of a port job/blower swap, as you will be cleaning out the worst oil spill ever seen since the Exxon Valdez.

1. On the passenger side, you will see a hose covered in foam that joins in the middle as a T, with one end going to the valve cover/PCV, one section going toward the firewall and the other section connecting to the side of the intake Plenum. Separate this hose at the T leaving the hose that goes toward the firewall in place. Remove the lower part of the hose that connects to the PCV at the T. Retain the upper part in your vehicle so you may restore the PCV to stock config. as needed. See the picture below:



2. Plug the hose going to the firewall and the connection on the plenum. You may wish to secure these with a zip tie to keep them in place.

3. Take the larger valve cover filter and place it on the end of the small lower hose you removed. If it is too loose, you can shim it with a piece of scrap hose, or you can cut the end off a plug and place it over the lip of the hose. Place the lower hose and filter back over the PCV and secure it with a single zip-tie to the heater hose as shown in the next photo.



4. Remove the black rubber intake tract that goes between the throttle body and the airbox. Note where the tube connects from the PCV - you can plug this with a large plug from the kit. It will be a tight fit, but it will serve the purpose. Just push the plug in with the head facing outward, and recessed into the hole 1/8". Remove the PCV tube from the valve cover and the 90 degree rubber elbow. Move the elbow to where it points toward the driver side wheel, flip the hose and place it in the elbow.

5. Move the hose around to where it intersects the throttle cable as shown in the picture below. Be sure it is not touching the EGR tube! Place the smaller filter on it and secure it with a zip-tie to the throttle cable.




6. You're done! I have not seen any oil mist with this system since I've been using it. It breathes well, and most importantly, no more crud in the I/C!

 

Very good write-up/instructions young man! Thank you.

Dan

 

Master Of Pain add a breather at your oil filler., Those little breathers are not enough to let the motor vent effectively.

 

With this mod will you need the pcm to be reprogrammed to allow for the change in crankcase pressure? Also with this mod aren't you allowing unmetered air to enter the motor? Just wondering?
Thanks.

 

Yes, but only in non-boosted conditions. Under boost, the valve covers will be under pressure due to the crankcase being pressurized (cylinder blow by) and working its way up to the valve covers.

A small amount of air will make its way into the intake tract through the breathers via the valve covers and PCV hoses if the rest of the system is left intact. However, this amount of air is both small, being only the amount that can enter through the small PCV tubes under normal atmospheric pressure, and it would only enter in non-boosted situations, both making it an issue I wouldn't worry about.

 

Thanks for the info.

 

no, he's just hes removing the PCV from the intake system......

check these..
https://www.f150online.com/forums/sh...hreadid=170680
https://www.f150online.com/forums/sh...hreadid=172065

 

How did you plug the hole in the intake tube?

 

Disregard I figured it out. Thanks.