PDA

View Full Version : Blowing coolant and high crank case pressure



dads400ex
04-06-2008, 06:53 PM
Give me some ideas as to what could be causing the coolant to blow out the overflow and the oil out the breather tube. I know it sounds like rings or a egg shaped cylinder, but I checked the cylinder for ovality before I put the new piston and rings in and I just pulled the head gasket and did not see any tell tale signs of a blown head gasket. Also when I drained the antifreeze it was kind of black, which keeps me thinking it is a head gasket. Any way, give your ideas.