plumbing a YS 120NC
08-23-2012 | 04:03 PM
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From: West Richland, WA
plumbing a YS 120NC
I am building my first pattern airplane, a Black Magic 110. It will be powered with a older YS 120NC. I've seen pictures of parts of fuel systems in airplanes in this forum, but am not sure how to hook one up from scratch. Can anyone provide a sketch or drawing of a complete fuel system for the YS? Any help will be appreciated.<div></div><div>Larry</div>
08-23-2012 | 06:29 PM
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From: West Richland, WA
RE: plumbing a YS 120NC
Joe,
Thanks for the links. They tell me just what I needed to know.
Moderator: I would appreciate if you could strike some of my initial posts. Not sure how three posts showed up, and aren't needed. One is just fine.
Larry<br type="_moz" />
Thanks for the links. They tell me just what I needed to know.
Moderator: I would appreciate if you could strike some of my initial posts. Not sure how three posts showed up, and aren't needed. One is just fine.
Larry<br type="_moz" />
08-25-2012 | 06:40 AM
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From: West Richland, WA
RE: plumbing a YS 120NC
I've looked at the YS manual and see where they recommend a check valve and a couple filters. However, in addition, I've seen several planes that have externally routed fuel tubing that is sometimes clamped (for some purpose), and a few pictures where shut-off valves have been added. I'm not sure the purpose or use for these devices, nor which of the two (supply and pressure) lines these are added. A little insight would be appreciated.
Larry
Larry
08-25-2012 | 08:17 PM
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From: Huntersville,
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RE: plumbing a YS 120NC
Your motor runs on a pressurized fuel system, the planes you see with the clamps are the newer DZ series motors. they use a pump to suck fuel from the tank and are prone to flooding between flights. You wont need a clamp or shut off valve.
Here is a link on one way to plumb the tank. http://nsrca.us/index.php/all/engines_fuel/76-fueldots Run the fuel dots out the side of the airplane for easy access for refueling and "burping" the tank after a flight. (relieving pressure)
Plumbing for the motor; the pressure nipple is the middle of the three brass fittings on the front of the motor, run fuel tubing from there to the check valve then on to the tank vent. Make sure the check valve is installed so air can pass from the motor to the tank! Connect the tank clunk line through the fuel filter to the other fitting on the front of the motor. The third fitting more to the side of the engine goes to the carb.
Hope this helps.
Dale
Here is a link on one way to plumb the tank. http://nsrca.us/index.php/all/engines_fuel/76-fueldots Run the fuel dots out the side of the airplane for easy access for refueling and "burping" the tank after a flight. (relieving pressure)
Plumbing for the motor; the pressure nipple is the middle of the three brass fittings on the front of the motor, run fuel tubing from there to the check valve then on to the tank vent. Make sure the check valve is installed so air can pass from the motor to the tank! Connect the tank clunk line through the fuel filter to the other fitting on the front of the motor. The third fitting more to the side of the engine goes to the carb.
Hope this helps.
Dale
