Re: Re: Engine ran backward?

From: Brett Stoner (Brett@abacusinfo.com)
Date: Wed Oct 08 1997 - 00:09:21 EDT


Gee, I hate it when I'm wrong;) Thanks though, George, that was actually very interesting. I had no idea that could happen.

Brett

<<< "George G. Barnard II" 10/ 7 10:20p >>>

This was more common when we had carburetors. As a foreign car mechanic during the mid 70's it was quite common for an engine to run on after the ignition was turned off. The ignition key was just that, it turned off the spark. As the engine slowed down and stopped it continued to pull a
perfect idle air/fuel mixture into the cylinders and out the exhaust system. When the engine came to a stop (rotational), one piston would come up on the compression stroke and a hot carbon spot would ignite the mixture in that cylinder, in turn forcing the piston back down in the opposite
direction. The engine would typically sputter for a second or two, then speed up on the air/fuel mixture it had left in the exhaust system and finally stop. It ran backwards!



This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:07:54 EDT