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Al
The injectors are opened for miliseconds, the air can't be cleared. A 0.020 orifice opened constantly will flow until all pressure is eliminate (if the bypass is place higher than the injector the air should be eliminate quickly).
Georges B.
-------Original Message-------
Date: 06/14/05 22:48:43
Subject: [FlyRotary] Re: Engine Not Starting
I picked up the idea from the Eggenfellner Subaru group. They had had a couple of instances where pilots ran one tank dry and then couldn’t get the EFI pump to re-prime, and ended up in off-field landings. It is now a mandatory change for anyone running the Eggenfellner package
Before installing the bypass bleeder circuit, it would not re-prime unless I cracked open a line downstream of the pump.
Mark S.
I’m not sure I get this. It must be system design dependant. I have filled my tanks from dead empty; turned on the pump and immediately had fuel pressure. Ran the tanks dry; then added some fuel; turned on the pump – immediately had pressure. True; I have done this on the ground, but should it be any different in the air. The key may be that the line from my sump tank to the pump has a slight downward slope so the fuel will fill the line and the air goes back to the sump.
What does the .025 bypass orifice do that open injectors while engine cranking won’t do?
Al
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