In a message dated 3/19/2007 10:37:56 A.M. Eastern Standard Time,
wrjjrs@aol.com writes:
Dave, Bob, ET all,
The normal position for the fuel regulator is after the fuel rail. You
will need a return line to the tank. The small orifice is used ONLY to allow a
re-prime and bypasses the regulator. There
is almost no change in fuel pressure with that tiny hole. I apologize if
everyone knows this already. It needs to be said though that the reason for
the orifice has nothing to do with the fuel pressure, it is simply a device to
prevent vapor lock if you run a tank dry. I think it's a good idea.
Bill Jepson
The injection pump for a V6-53 Detroit Diesel is not all that complicated.
The barrel and plunger assembly is available world wide by many manufacturers.
The assembly makes the pressure and is fed by a low pressure pump. If made as a
2 cylinder unit it need not be very large or heavy. There are even smaller units
that work on the same principal that might be better sized for the job. The
injectors have adjustable pop pressures and can overcome the
very low compression of the rotary with no difficulty. I have that same
assembly from a 3.9 Pielstich and it is the same piece, just 30 times
bigger. Still dead simple.
And you could make an adaptor to inject through the trailing plug hole, and
run a 10MM plug in that hole as well. Then you could have an engine driven fuel
pump, and a pair of magnetos, and still fly home with a dead battery.
Lynn E. Hanover