Hi guys,

I just picked up a new H9 Pulse XT 40 ARF and a new OS 55ax. Cannot wait to fly this puppy. This will be my first shot at glow flying, as I currently have 5 electric planes.

Anyway, my question is, does anyone know of a website or instructions on the best methods for refueling planes with cowl's??? I have found next to 0 info online on best setups and what parts are needed. All the guys at the LHS had no clue what parts I needed either... How do new glow hobbiests know what to buy?

Anyway, do I go with a fuel dot mounted to the side of the cowl, or a simply a 3rd line hanging down from the tank which is capped when not in use? My tank cap has 3 holes, of which I assume you're supposed to drill out the 3rd hole and insert another brass fitting and a 2nd clunk line? Or is it best to stick with 1 clunk line and just use a brass bent suction pipe??? Obviously it needs to be easy to get to as it would be rediculous to remove the cowl for every refuel. Now what happens when I fuel? Won't the carb be flooded??? 1 way valve in line to carb??? What about unfilling the tank? I'd assume a 2nd clunk line works best?

Next I bought all the hookups to drill holes in the glow fuel container lid to put 2 holes in. I think this part is straight in my mind. One is just a vent for replaced fuel. I ended up buying like $40 with of connectors and parts as I mapped it all out in my mind. Since I've never done this before it was a bit of a challenge, especially since everyone at the LHS only flies electric and has no clue about glow setups... How would the 2 line tank method (vs 3) work? I mean obviously a splitter, and one way valve, but which is superior?


I'm going to run an electric fuel pump I just bought and solder on dean's connectors so I can use my 3s lipos to power it. Should make it highly portable.

Need some help with fuel setups badly! I didn't see instructions anywhere, checked online, manuals, LHS, etc. Only site I found is [link=http://www.hooked-on-rc-airplanes.com/fuel-dot.html]http://www.hooked-on-rc-airplanes.com/fuel-dot.html[/link] but I'd like to know if a fuel dot setup is the best (or only) way to go. How do you guys all do it? A wall of over 100 parts at the LHS was a abit overwhelming, esp. when no one could help me.

Thanks!

I use the 3rd line and a plug of some sort and I don't use a 2nd clunk line. Just run the brass tube through the stopper and into the tank

Doesn't the carb flood everytime you fuel up? How do you know when it's full, or do you pull off the carb line as the overflow??? Doesn't the muffler backfill with fuel?

The extra pressure will go out the tank vent unless you try to fuel it too fast

The tank vent line goes to the top of the tank and when the tank is full fuel comes out the vent line

Sorry still confused. Where's the tank vent if I'm using all 3 lines from the tank? (tank to carb, tank to muffler, tank to fuel pump filler) = no vent line.

to me an electric pump is a waste of money

I use the hand pump so I can control how fast the fuel goes in and count turns to know how much fuel I'm putting in the tank

Hey I can type pretty fast but you are over running me here

the line to the muffler serves as the tank vent

Keep it simple and don't spend any more money than you have to

I see. But that would mean the muffler would fill with fuel if it's the vent line. Or how do you know when you're full? I could return the electric pump and buy a manual pump to count turns I guess. It was the same price so I grabbed the electric version.

Thanks for the replies. I guess I'll just have to build it how I think it should be and start adding pieces in line. I just figured someone would have posted instructions about this or a website on setups, as it definately wouldn't be intuitive to a new glow builder. Especially when nothing's listed in the manuals.

If you don't want the muffler to fill with fuel - you unplug the line from the muffler

I've been trying to read your manual and they did drop the ball on hooking up the tank. There is absolutely nothing in there about how to hook up the fuel lines.

I guess it is because this is not a trainer and they assume you have built glow models before?

Haha yea, no clue. All it says is "install the fuel tank"... Good times!

What I did on my planes like the pulse is to just use two lines and fill the tank from the line that goes to the engine and vent the tank with the muffler line

when I refuel I take both lines off the engine and muffler

I'll look at some other manuals and see if I can find you something in print?

Yea makes sense. Maybe I'll just go with a simple setup like this. Just would be nice to hook in and go! But maybe I'm making it more complicated than it is. A fuel dot would be a nice option though.

Sure, I'll look around at some manuals as well. Something with a bit more of an advanced setup than simply unplugging both lines if possible. Thanks w8ye!

This manual tells all about how to assemble the tank but says nothing about hooking the two lines to the engine

http://www.horizonhobby.com/ProdInfo...nual_LoRes.pdf

Try this one from Sig. They used to be real good

http://www.sigmfg.com/cgi-bin/dpsmar...L+Sig+qjcb2942

TYVM!!! I'll have a read through that.

Being as you seem to be a very experienced RC modeler but in Electric power, here's a section on operating the glow engine just in case you were looking for information. You may already know this?

http://www.sigmfg.com/cgi-bin/dpsmar...L+Sig+zmxg9062

Nice guide! Thanks again. I honestly can't wait to "move to the dark side of glow power". Can't to smell the fuel and hear the engine! I have a taste of glow experience as I bought a truggy this fall. Ran 3 gallons through it, modded it a bunch and dropped in a new Picco .28. I've only just broke it in, but wow does it have balls! Double the HP and 40% more torque over the stock .28.

Cheers,
Eganwp

You are getting there. The path to true enjoyment

I tip the rear of my plane approx. 20 degrees down when refuelling. The vent pipe is then the highest point inside the tank (Kavan tank shape) and you make the area where there is air smaller. Because of that it’s easy to fill the tank close to 100 %.
Depending on the shape and position on your muffler, the fuel that went from the tank to the muffler, will come out from the exhaust exit hole.

The engine is upright in his plane and it is a tail dragger