Greg Martin wrote: > So, what is a draft tube and how does it work? There some of us that > could > use more information on this subject
A draft tube is a tube used to ventilate the crankcase of oil vapor and combustion gas blowby. The Corvair has something like a 5/8 " OD steel tube that exits the top cover (air/oil separator)and runs down to an exit point underneath the engine. Condensed oil and blowby gases will drip out the draft tube onto the road as the car is driven or parked. It is usually cut with something like a 45 degree angle on it so a low pressure area is created to help suck on the pipe while driven (or flown). Mark Langford n5...@hiwaay.net website www.n56ml.com
