As to the OP ... if it blew the valve out of the grommet, you have a blow by problem... have you put a gauge on the dip stick tube yet
didn't blow it out of the grommet, this was a breather stuck down over the filler pipe coming up out of the valve cover. the other breather is tighter, and has never been an issue. this one was looser, and i wondered about it when i put it on, but figured it would be ok. apparently not.
as far as the gauge, i have a pressure/vacuum gauge, but i'll have to rig it up with the right fittings to go over the dipstick, i haven't done that yet. will see if i can get to that this weekend.
