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HomeAircraftHelicopterHelicopter Main Discussion › Fuel lines coming loose
10-15-2005 10:11 PM  12 years agoPost 1
Xterra

rrApprentice

USA

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I know this has been posted before but I could not find the thread so I decided to post it. After my second fly I was doing a routine inspection and what I found "My fuel line came loose from the muffler". I should say that I always use clips to secure those lines but the last time I changed them I ran out of clips and thought it would not be a big deal till I get more clips. I kinda of scared me, NO WAY I will fly my R50 without clips again


Stratus
Raptor 50V2
T-rex SE
T-rex CDE
T-rex 250 SC
Kyosho M24

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10-15-2005 10:59 PM  12 years agoPost 2
ErichF

rrElite Veteran

Sutton, NH

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Funny this came up today.

I was out flying my X-Spec today, and on the first flight a minute or two in I was doing a travelling backflip. Just as I completed the flip and started forward again, the motor shut down (talk about timing).

Performed the no-warning auto back to the runway from about 50 feet, no problems

As I walked up to it, I was thinking the glow plug just gave up the ghost, but as I got to the heli, I saw the header tank empty with the main tank full!

The clunk like came off the main tank pickup. I had used a second peice of tubing as a keeper, but that keeper had split. Those of you with a Freya or X-Spec know what a pain it was to re-attach that darn line, too. Fuel tank removal and replacement is one of the few ugly sides of Freya ownership

Erich

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10-15-2005 11:09 PM  12 years agoPost 3
chuckhager

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Clovis, CA

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Us a small zip tie to secure them.

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10-15-2005 11:21 PM  12 years agoPost 4
ErichF

rrElite Veteran

Sutton, NH

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Actually, that's exactly what I used to secure the new line. Should be fine for awhile, but I'm hoping the fairly sharp edges of the zip-tie don't cut through the line itself. After awhile in the soup, the lines get soft and jello-like.


Erich

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10-15-2005 11:34 PM  12 years agoPost 5
Mark C

rrKey Veteran

Houston, TX - USA

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Those of you with a Freya or X-Spec know what a pain it was to re-attach that darn line, too. Fuel tank removal and replacement is one of the few ugly sides of Freya ownership
Dude, having owned a Freya, I can name that repair in less than 5 minutes.

1. Don't empty the main tank yet - it's a pain to turn the heli upside down to empty it since the clunk is off.

2. Remove the feed line from the header (or carb if you don't use a header) and plug the end of it.

3. Pop the pressure line off of the muffler and pull it out the back of the Freya and attatch a large syringe to it.

4. Pull a vacuum on the tank with the syringe until it FALLS out the back of the heli without removing a single screw.

5. Empty the tank and fix your clunk line.

6. Put a vacuum back on the tank and drop it back in.

7. Reattach fuel lines and fly.


Mark C.

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10-15-2005 11:51 PM  12 years agoPost 6
Bob K

rrNovice

Kansas City, Mo.

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use fuel line for clamp
When installing fuel line, cut about 3/16" off the end of the line. Spread that piece apart with needle nose pliers and slide it over your fuel line. Install the fuel line on the muffler nipple, slide the 3/16" section over the connection. A very effective yet inexpensive clamp.

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10-16-2005 12:33 AM  12 years agoPost 7
E30TECH

rrVeteran

Jefferson, New Jersey

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Good idea! Thanks

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10-16-2005 03:17 AM  12 years agoPost 8
DSW

rrApprentice

Oviedo, Florida 32765

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Here's a pic of the fule tubing clamp, It's a little hard ot see, look at the main header tanks line and both sides of the filter.

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10-16-2005 03:28 AM  12 years agoPost 9
TroyE

rrApprentice

Orlando, FL.

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just use those spring type hose clamps on everything, on the clunk line I twist a little peice of copper wire like a twisty use on a loaf of bread and I have never had a fuel, pressure or clunk line come off.

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10-16-2005 03:33 AM  12 years agoPost 10
Leif

rrElite Veteran

USA

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I also use the extra-tubing strips as clamps. In fact, this is a perfect application for that crappy clunk tubing that ships with the stock kits. It's useless as clunk tubing but is great when cut into small sections as tubing keepers.

For the clunk tubing I use an extra strip of Hayes black on each end. Just as DSW said, just cut off a 1/8" to 3/16" piece of the tubing, stick it over your needlenose pliers and then spread the pliers to slip the strip over the end of your normal tubing.

I've been doing this for years and haven't had a line come off since I started doing this.

Leif

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10-17-2005 04:34 PM  12 years agoPost 11
Xterra

rrApprentice

USA

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Thank you for all advises
These are the clips I am using now


Stratus
Raptor 50V2
T-rex SE
T-rex CDE
T-rex 250 SC
Kyosho M24

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10-17-2005 04:50 PM  12 years agoPost 12
zoom boy

rrKey Veteran

N.E. Lincolnshire UK

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Where they have come loose on my models, I use a tie wrap to just hold it arround the narrow part of the nipple, seems to work and is easily removed.

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10-17-2005 06:52 PM  12 years agoPost 13
Xterra

rrApprentice

USA

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Person, there you go !!!
http://www.ronlund.com/Merchant2/me...y_Code=Fittings


Stratus
Raptor 50V2
T-rex SE
T-rex CDE
T-rex 250 SC
Kyosho M24

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10-17-2005 08:53 PM  12 years agoPost 14
Jeff Greunke

rrApprentice

Northwest Ohio

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Use fuel line with a smaller inside diameter

Raptor 30, Raptor 50, Raptor 50#2, E620

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10-17-2005 09:58 PM  12 years agoPost 15
rotormaniac

rrApprentice

West Virginia

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