iused2sk8in98

I hope I can get alittle help with this problem. I have a 93 5.0 with a stock 302 with Heads and Cam the bottom end is stock and has about 60k on it. Whenever the car is at wide open throttle I notice oil was coming out of my breather filter on my valve cover. I installed a crank case ventilation system and I notice now the air and oil pushes the PVC Valve out of the back of the intake. I've asked around and some people tell me 2 just put a breather filter in place of the PCV Valve. Has anyone had problems like this or does anyone know of a solution? P.S I know I probably have blowby at the pistons but I have insufficient funds to rebuild the motor right now.

mjr46

make sure the mesh filter screen under the grommet in which the pcv valve plugs into is not plugged up/ restricted
http://www.latemodelrestoration.com/...0%201&comp=LRS

iused2sk8in98

I put an vic. jr intake on the car and i never put the screen back in. so it's not restricted or anything.

iused2sk8in98

Wow i think i just figured out my own problem, I'm guessing that screen works kind of like a baffle which when i put my car together wasn't really thinking about it and i just never put it back on the new intake...well hopefully problem solved...thanks for the advice.

cleanfitty

The screen is there just to block oil from getting sucked back into the intake- it just baffles the oil a bit.

If you were to install it, the crankcase pressure would still be there.

crusin92red5.0

i thought when you put a breather on the crankcase your suppose to get rid of the pcv valve completely

iused2sk8in98

Yea i'm not sure...I wanna keep the PCV in because I still drive it on the street. It only has positive pressure when at WOT. I just didn't know if anyone knew of some way to decrease the pressure.

PJC Racing

Do not use a PCV with a breather, the breather only acts as a large vaccum leak as far as the PCV is concerned. Use either the breather or the PCV, not both. The PCV system is better suited for ventialation in a stock to medium hp engine due to a possitve vacuum pulling from the engine.

Problem is, it just doesn't look cool enough for some people so they throw a breather on to make their car look faster.

iused2sk8in98

So if I just decided to use a breather on the valve cover, would i just plug the PCV hole in the back of the intake?

Joel5.0

Nope..... attach an extension hose to the PCV valve and a small cone filter wherever you decide to extend the hose to.