Fuel valves, fillers, and dots for cowls...  
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Fuel valves, fillers, and dots for cowls... - 6/25/2008 4:33:43 AM   
gaRCfield


 

Posts: 1126
Joined: 5/20/2008
From: Burlington, VT, USA
Status: offline 		I know this has been posted a bunch of times, but I can't find the posts.

I'm getting a plane with a cowl and need to know how to set it up for fueling. The website suggests the Great Planes Easy Fueler Valve http://www3.towerhobbies.com/cgi-bin/wti0001p?&P=8&I=LXK135

I know there have been other suggestions. What do you guys recommend? Also, I guess fueling until fuel runs out the muffler is a debatable way to fill, so what do you recommend for that as well?

I know you guys have some great graphics to explain this stuff; I hope you don't mind posting them again.

Thanks!

The big fat (well not anymore ) orange kat that is stupidly addicted to pretty little flying toys,

GaRCfield

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 4:41:10 AM   
ChuckW


 

Posts: 1788
Joined: 6/15/2006
From: Clovis, CA, USA
Status: offline 		I don't like the valves like the one in your link. They end up leaking fuel and/or sucking air. Neither is good. I prefer something like these:

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXAHE1&P=0

http://www.horizonhobby.com/Products/Default.aspx?ProdID=HAN115

Basically they plug the fill line and push into the cowl. You pull them out to fill up. It's clean and simple. I would not recommend the T fitting in the second example. It is more trouble than it's worth. Just use a 3'rd line as your fill line. The Dubro set up comes with everything you need for the 3rd line.

Another option is to just leave a 3rd line hanging out the bottom of the cowl and use a plug like this: http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXK138&P=0

What plane are you going to put it in?

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 4:47:55 AM   
gaRCfield


 

Posts: 1126
Joined: 5/20/2008
From: Burlington, VT, USA
Status: offline 		Phoenix Super Decathlon

I'm excited, can't you tell? I'VE BEEN WAITING 20 YEARS TO FLY A SCALE RC PLANE!!!!! Isn't it beautiful?



*This is not my pic. I did a Google Image search for the plane and found it. I take no credit.

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< Message edited by gaRCfield -- 6/25/2008 4:55:27 AM >

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 4:54:01 AM   
gaRCfield


 

Posts: 1126
Joined: 5/20/2008
From: Burlington, VT, USA
Status: offline 		Chuck, I appreciate the link and it sounds great, but I am having a hard time visualizing how it works (the first link) - Do I install a 3rd line as if there was no cowl, and just run that line to this piece? I'm assuming this is a way to extend the third line through the cowl, and includes a plug, correct?

Thanks.

Oh, does the metal tube get used for the third line through the bung, fuel line from the metal tube to the silver piece, which mounts inside the black flange in the cowl, and the black plugs go from outside the cowl, through the adapter, and plug the line on the inside???

< Message edited by gaRCfield -- 6/25/2008 4:57:45 AM >

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 4:57:13 AM   
RCKen



Posts: 14457
Joined: 7/10/2002
From: Lawton, OK, USA
Status: offline
quote:

ORIGINAL: gaRCfield

Chuck, I appreciate the link and it sounds great, but I am having a hard time visualizing how it works (the first link) - Do I install a 3rd line as if there was no cowl, and just run that line to this piece? I'm assuming this is a way to extend the third line through the cowl, and includes a plug, correct?

Thanks.




Do these help any??



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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 5:00:36 AM   
gaRCfield


 

Posts: 1126
Joined: 5/20/2008
From: Burlington, VT, USA
Status: offline 		See, this is the stuff I was talking about!

Yes Ken, it helps a ton. Thank you. What wonderful software.

That's my new engine, too

< Message edited by gaRCfield -- 6/25/2008 5:03:13 AM >

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 5:02:07 AM   
gaRCfield


 

Posts: 1126
Joined: 5/20/2008
From: Burlington, VT, USA
Status: offline 		I know Opjose has a different method which I'm curious about as well. I think the above mentioned is a cleaner look though.

< Message edited by gaRCfield -- 6/25/2008 5:04:08 AM >

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 5:05:59 AM   
ChuckW


 

Posts: 1788
Joined: 6/15/2006
From: Clovis, CA, USA
Status: offline 		Those pictures say it all. One thing I would recommend on the 3'rd line is to run it just like the last two pictures except add a clunk.. That keeps the line at the bottom-rear of the tank and makes draining the tank a lot easier at the end of the day.

Which Decathalon did you get? This may not be a bad choice. Just remember that just because it has a high wing, doesn't mean it isn't aerobatic and can't get into trouble. I've seen a few of these fly and I kind of like them.

I kind of have the new plane bug myself. Great Planes is replacing my Cherokee and I plan on putting the OS .56-a in it instead of the .46-AX from the first one. My garage is too stinking hot to sit out there and build anything right now so I'm leaning toward a new ARF. Just can't decide what. I have a new Parkzone Corsair on backorder but that's electric so it doesn't really count.

< Message edited by ChuckW -- 6/25/2008 5:09:20 AM >

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 5:06:19 AM   
gaRCfield


 

Posts: 1126
Joined: 5/20/2008
From: Burlington, VT, USA
Status: offline 		Oh so how do you know when it's full? Let fuel spill out muffler?

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 5:13:34 AM   
ChuckW


 

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Joined: 6/15/2006
From: Clovis, CA, USA
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quote:

ORIGINAL: gaRCfield

Oh so how do you know when it's full? Let fuel spill out muffler?


Depends on the setup... If you can get to the pressure line on the muffler, pull it off and watch for fuel coming out. another option is to run the pressure line in a loop below the muffler and use a T. The short hose coming off of the T will be lower than the muffler so you'll see fuel run out of there first. Just put a plug in that short line.

When using a Pitt's muffler I often just put a cup under it and fill it until it runs out.

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 5:57:33 AM   
gaRCfield


 

Posts: 1126
Joined: 5/20/2008
From: Burlington, VT, USA
Status: offline
quote:

I have a new Parkzone Corsair on backorder but that's electric so it doesn't really count.


*laughing...

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 6:08:00 AM   
combatpigg



Posts: 9593
Joined: 11/22/2003
From: arlington, WA, USA
Status: offline 		The simplest way I know of is to stand the plane on it's nose and fill it through the muffler pressure line until fuel runs out the carb. With the carb lower than the crankcase, you will almost have to try to flood the engine. Using a syringe takes the guess work out of how much fuel is going in. The best part about this method is it is simple, fool proof and doesn't add to the list of possible trouble points in the system.

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 8:39:43 AM   
The Ghost



Posts: 802
Joined: 3/18/2004
From: UlladullaNSW, AUSTRALIA
Status: offline 		I have used the fill valves for many years with no problems. I have also used the fuel dots. Each have there merrits.

Cheers

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RE: Fuel valves, fillers, and dots for cowls... - 6/25/2008 2:59:05 PM