RCU Forums - View Single Post - Fuel system plumbing and air trap consideration
Old 11-06-2009 | 07:32 PM
  #19  
Kmarks
Senior Member
My Feedback: (36)
 
Joined: Jan 2002
Posts: 733
Likes: 0
Received 0 Likes on 0 Posts
From: Scottsdale, AZ
Default RE: Fuel system plumbing and air trap consideration

This Thread is excellent!

I tested my system today by letting the fuel system run into the fuel can, no closed loop. I am using all stock copper tubes supplied with FEJ F16. My set up is like this: the overflow vent runs into one of the top fuel tanks, these top fuel tanks each bleed into the top copper tube in the bottom fuel tanks and the two bottom fuel tanks are T by a festo blue T to the BVM UAT. The second top vent is connected to the UAT for fueling. The BVM UAT is 5 inches to the Jet Cat fuel pump. No filters on this side of system, and standard yellow fuel tubing used. I am not sure of size. I set Jet Cat GSU to 6 volts and let her run for 1 minute.

The result was half my UAT was filled with air when I shut her down. The sides did infact cave in a small bit, but the amount of cavitaion is way out of line.

I will go to the Hobby shop and get the larger fuel line, larger copper tubing and drill out all the clunks and stoppers. The Tom Cook air trap is back ordered, so I will have to wait on that.

I hope this solves this cavitation problem, I dont think I'd be as lucky if I had another flame out to walk away with as little damage as I did with the first.

Kevin