2 Klunk/Pump Setup.
Has anyone heard of this? An old timer showed this to me but I haven’t tried it yet to see if it really works. He said he read it in a RC magazine and uses it on all he planes.
It’s easier to understand if drawn out on paper so here it goes, stay with me.
Set up tank vent line as usual. Take the tubing that connects to the muffler and plug/cap it off.
The next line is set up like a standard fuel line with klunk at the end. Connect the end of this tube to the muffler then cut the tube at a convenient location and insert a check valve between the muffler and tank. I think the idea is that the check valve (engine running) allows air pressure from the muffler into the tank. (Check valve only lets fuel run one way.)
Last, set up another fuel line with klunk at end. Add a fueling valve to this line and connect to the carburetor.
I was told this is like a pump with continuous fuel flow.
Again I am asking if anyone has heard of this. I have not tried it nor am I sure the set up is exactly correct. And no I am not nuts!
Sensible feed back will be appreciated.
Bern
[8D]