floodbc12

I just got this in a trade.....have a 95 mustang originally a v-6 now has 5.0 out of a 91...has trick flow stage 2 cam, 1.7 roller rockers, gt40 heads from 95 cobra, holley systemax upper truck lower. when i got the car oil was leaking out of the breather oil fill cap(aftermarket) and the pcv was not hooked up.....i bought a new pcv and hooked it up to the front side vacuum port on the upper intake and oil stopped leaking out of the breather......but now ill go for a drive and ill pop the hood and i have oil all over my valve cover and throttle linkage....is this a vacuum problem or something else???

tohoopty

mine done that real bad also.

floodbc12

did you find out what was causing it?? is it caused by bad piston rings?

floodbc12

anybody????

tohoopty

i never did figure out what it was.i carb'd my car so i dont have to worry about it anymore

Happytrack44

Perhaps the Steda st49 kit will stop that. You are probably getting some oil by the pcv and its doing what you see. some other manufacturers probably make a cheaper version.

floodbc12

could bad piston rings does this too or just mainly the pcv?

Happytrack44

horses before zebras. do a compression / leak down test if you think its rings.
They sell these kits for a reason.

rtintwo

Does the trick flow covers have the baffle inside of them? If there isnt a baffle then oil from the rockers can spash onto the PVC valve.

Rat fink

With the engine running, take the filler cap off put a sheet of paper over the hole. If there is pressure the paper will lift, If it lifts you have bad rings or at least 1 or 2 bad oil rings, if it does not lift there is no pressure so no bad rings , get a new filler cap.