Now, why do engines all turn in the same direction?

[Phil Payne]

> It is possible to run an engine backwards. That's how I get reverse on the 11 HP diesel on
my boat. :) Revs and runs just as good backwards as forwards. And I've accidentally started my
lawn mower backwards as well. Man that really messed up my lawn. ;)

That's how reverse gear was implemented on some Morgan 3-wheelers.

There are other considerations.  Look at cam and crankshaft seals carefully, and you'll see
lots of little directional mouldings.

--
  Phil Payne
  http://www.isham-research.com/quattro
  +44 7785 302 803
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