Join Date: Jun 2006
Location: Sierra Foothills, California
Re: Oil blowing out dipstick tube
Last time I saw that happening, it was on a destroyed but still running SBC in a boat. It amazes me that engine would even start and run. There were cracked ring lands and broken rings all over the place, and the blowby was so severe that smoke and oil was blowing out the breather cap. Check your PCV to make sure it's working right. If it is, you have major problems. I'd suspect broken rings or a hole in a piston.
Big bux repair.