On Jan 14, 11:22*pm, Clark wrote:
wrote in news:0aed474f-8115-4575-84e4-18b6c58bb1b3
@n10g2000vbl.googlegroups.com:



Greetings:

It's winter here in Tennessee *a question for the group: *If I took a
flexible *Aluminim duct,/ hose hooked it up to my car exhaust pipe,
then put the other end in the lower end of the engine *cowling to pre-
heat the aircraft's *engine *would this cause any problems?

I would drill a small hole in the cars exhaust pipe to allow for
exhaust water to escape

Today's cars are very clean burning with almost zero emissions or so
they say? *I would not direct the exhaust at the airframe or the
engine just enough to enter the cowling at the nose strut. I would
open the oil door to allow a flow of exhaust. I would leave the cabin
door open on the aircraft to make sure no CO2 * besides, my aircraft
has a CO2 detector installed.

Carbonic acid isn't the problem but the nitrogen oxides and sulfur
oxides combine with the water of combustion to make nitric and
sulfuric acids!