pressure build up
 

i was reading the posts and i also have a problem with pressure build up and the pvc valve pops out under 6 lbbs i was wondering maybe is there a bandade fix i could do till i figure out whats going on,? the rings sesem good vac. is @ 15 @ idle
thanks
ponyexpress289

Either add a breather filter or add a vacuum pump. Breather filter is about $20 Vacuum pump is a few 4-500 more.

breather filter
 

is that the thing that goes on the thing that you pput the oil into?
sorry but its an 86 model 5.0
would i have to lose the oil cap?

Yes, it takes the palce of the oil cap. It will still work the same, just unscrew the breather element.