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Posted by Michelle Steiner on May 8, 2009, 11:22 pm

I didn't realize that this was a contest.

It's now time for healing, and for fixing the damage the GOP did to America.

Posted by Steve Giannoni on May 8, 2009, 7:39 pm
Either 2 or 4 stroke engines will have the axis of the crankshaft
displaced to accommodate more efficient coupling during the power
stroke. Can only run in one direction ...

On Thu, 07 May 2009 15:35:49 -0700, "David T. Johnson"

Posted by Peter Granzeau on May 10, 2009, 7:13 pm
 On Fri, 08 May 2009 15:39:38 -0400, Steve Giannoni

Actually, I have seen large marine Diesel engines which could run in
either direction.  They were brought to a complete stop, the intake and
exhaust were switched, then the engines were restarted going the other
direction.  You design engines correctly, that's possible.

Posted by Steve Giannoni on May 17, 2009, 3:54 pm
 Your exception doesn't really break the rule. There are several design
features of normal engines optimized for rotation in only one
direction. eg - intake vs. exhaust : valves, ports, open/close
positions, etc. ..., connecting rod bearings, ...


Posted by Steve Giannoni on May 17, 2009, 9:09 pm
 My mistake - NOT the connecting rod bearings.

On Sun, 17 May 2009 11:54:51 -0400, Steve Giannoni

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