>>>>> "Jeff" == Jeff Nathanson <firstname.lastname@example.org> writes:
>> 9) once started, DO NOT STOP THE ENGINE FOR 20 MINUTES!
>> This is the most crucial time in an engines life, and
>> it is important to that this first running period be
>> done correctly. Do not idle the engine!
Jeff> Not trying to be critical, but why 20
Jeff> minutes? What happens in this timeframe that doesn't
Jeff> happen in 5 minutes or 2 hours?
The engine warms completely (more or less) and all of the
rotating mass gets a chance to become dimesionally friendly
with its nearest neighbor while hot. 20 minutes is kinda a
generalization, but it's the number most folks seem to
recommend. One thing, be wary of gas and oil leaks. You
don't want a fire to start while you're trying to pay
attention to other things. Don't do this alone unless you
have to. Have a fire extinguisher handy. Ask me how I know.