94IVGT

94 gt 5.0l 5sp. vortech sc. got on it leavin town and a ton of smoke came out of nowere, so i shut it down and saw the dipstick was blown off alittle and oil was coming out of it. no oil or a/f out exhuast, plugs look good, o2s readin good. what would be a cause of this???

2 kwik

pressure in the crankcase...

94IVGT

what would cause this??? it has a new pcv valve and screen.

2 kwik

what psi are you running?

94IVGT

8lbs

I G Joe

hows your compression?

94IVGT

130psi, all cylinders

PRO50SC

I run a breather on one of my valve covers. Problem solved.

94IVGT

and then after that happened it seems like it missing, all the cylinders are 128-130 psi and all the plugs look nice.

capri debris

Plain and simple, there is only ONE way pressure builds in the crank case... blow-by. Combustion pressure leaks past the rings and pressurizes the crank case. Now, if you say the pcv system is new, then it is either not adequately venting the pressure or you are simply building too much pressure which is caused by bad rings or out of round cylinders. How many miles are on this motor? If it's got alot of miles and you just slapped a blower on it, then you were asking for trouble.