has this ever happened to you ? I purchased the great planes fuel filler for a warbird cowl installation . I have done this at least 4 times before correctly . I added the tank lines , one lines gose to the tank the other to the engine . Another line exits the tank to receice pressure when attached to the muffler .
So I start to fill the tank and has come pouring out the muffler .
So I stop , examine the set up and switch the lines , ok got it correct but it still seems to be under high pressure . If I remove the line going to the engine the pressure from inside the tank forces the fule out at a very fast rate ???Does this seem normal ?

I ran the engine and it runs excellant so I feel the set up is now complete but I am thinking my other planes did not seem to have this internal high pressure when the engine was 1)not operating and 2) I was not filling the tank ?

Recheck your lines at the tank end, sounds like they aren't hooked up right yet. As an aside, after hearing too many reports of problems with filler valves, I switched to three line tanks and fuel dots. I like the fact that this setup removes hardware between the tank and engine.

Like piper chuck, This is the very same reason I also use 3 line fuel dot set ups. Those fueler valves are just plain problem prone! It does sound like you may have your lines crossed up.

Could the vent line mistakenly being going to the bottom of the tank rather than the top? I have had this brain fade when working on a fuse upsidedown.

Maidened a plane for a guy this weekend. He had this problem. Tank was upside down so vent tube was at bottom of tank. Flipped tank and all was well. Well, actually we then moved on to his other problems.

I've never had this problem, at the field! Sure is a good thing I always start the plane at home at least one time, helps avoid being embarrassed by having others see this kind of oops.

Thanks guys , i did run this at home , sounds like I have the tank upside down , a littlle fiddeling will tell the tale , i will get back to you

Ok , a few problems , this was for a warbird and I assembled it upside down and hooked up the wrong lines . Dont know what I was thinking , I use green fuel lines for fill , red to engine and blue to muffler , that part was ok , the problem was the internal connections were wrong and upside down lol .

A brain dead moment lol glad I was in the yard and not at the field [X(]

Glad to hear you got it resolved!

Good to hear it was this simple...your not the first one to do it

It's a common & easy to do mistake. I've done it a few times for the very reason, fuse is upside down when I mount the tank. Luckily for me I've caught myself getting confused as it happens then sit there & figure it all back out. This usually means pulling it all apart & starting over.[&:]

Ok everybody, mark this on your calendar, Ken's gonna admit to making a mistake!!! [X(] [X(]

I've done the same thing and here's what I do to keep my orientation when working on a plane and I have to pull the fuel tank in and out. I use a sharpie and mark an "up arrow" on the former that I will be sliding the tank into (or inside the tank compartment, or whereever I can see it and it will help) and an "up arrow" on the sides of the tank. This way as I slide the tank in and I see that the arrows don't "match" I know it's upside down.

Hope this helps

Ken

I have to tell you that this is a typical reason why this site is so good . My wife wanders why I sepnd so much time on this site but with two boys at 12 and 14 i cant spend a ton of time flying , its quick , valuable and fast when I am at the field .
So thanks to moderators and the great members on RCU , you can get quick answers and just move on .

Thanks again for all the help , keep up the great webiste any RC company that does not advertise on this -the best and only site that worth looking at for RC is crazy and you can quote me on that !!!!!!!--I have purchased a ton of stuff from RCU links or RCU member suggestions

LDM You are right about this site. I have learned more things in here over the last year or so than any other one place. Just about every tip & technique I know about assembling airplanes has been picked up from one person or another here in RCU. I too have purchased planes & engines from merchants advertising on this site & in the RCU Marketplace. It can be a good resource for NIB 4-Stroke engines at less than retail prices. I have done a few transactions here with a number of different people & I have never been burned by anyone associated with RCU. I wonder how many people can say that about ebay???[&:] This really is the best RC site on the web IMO!! Glad I found it.[sm=wink_smile.gif]