Jim,

The engine is designed to be fairly fault tolerant of air bubbles in the
low pressure fuel lines (the returns from the pump element gallery are
positioned above the high pressure gallery inlet etc.) and will continue
to deliver solid fuel through the high pressure lines even with bubbles
in the low pressure ones. It will also repurge the high pressure lines
even in the event that you run them completely dry. You simply have to
reintroduce fuel to the system and keep spinning the prop at greater
than 150 rpm. How long it takes for a restart is based upon how dry the
system was and how fast you can spin the prop. This however is not a
good practice as the high pressure pumps will be operating without
lubrication on the top side until the fuel is reintroduced. The
collective thoughts of the group are that you can certainly get away
with it a couple of times, but better be thinking about inspecting the
high pressure plungers after the 2nd full dry restart.

Dave Driscoll
DeltaHawk LLC

jpollard###mnsi.net wrote:

On Fri, 26 Mar 2004 22:26:50 -0600, Dave Driscoll
wrote:



I'd be happy to answer any questions that
people may have regarding the project.




Hi Dave

How do you get a diesel restarted in the air if you happen
to have multiple fuel tanks and run one dry so the injection
system gets air in it? Is there a way around this problem?

Jim