Fuel clunk line for gas?
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Fuel clunk line for gas?
What do ya'll use for clunk tubing in large gas tanks (32 oz or bigger). Tygon gets too stiff after a year and neoprene tends to split at the end over time when used with a heavy clunk. Taking the tanks out and changing lines every year is getting frustrating as some planes are not easy to do. Thanks, Paul
#2
RE: Fuel clunk line for gas?
ORIGINAL: Meschmidt
What do ya'll use for clunk tubing in large gas tanks (32 oz or bigger). Tygon gets too stiff after a year and neoprene tends to split at the end over time when used with a heavy clunk. Taking the tanks out and changing lines every year is getting frustrating as some planes are not easy to do. Thanks, Paul
What do ya'll use for clunk tubing in large gas tanks (32 oz or bigger). Tygon gets too stiff after a year and neoprene tends to split at the end over time when used with a heavy clunk. Taking the tanks out and changing lines every year is getting frustrating as some planes are not easy to do. Thanks, Paul
I use neoprene gas line and a walbro tank filter/clunk. I havent had any trouble out of the neoprene gas line yet... that doesnt mean anything its just yet..
http://www.landscaperpro.com/echored...rlp340830.aspx
#3
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RE: Fuel clunk line for gas?
I have used Tygon for years, and have never had the stiffness issue. It is true a get a bit hearder, but just a bit, and it will acutally soften again in gas. This is why I store the tanks with a littel fuel in them (keep lines soft). Of course, I always put Stabil in my fueling can all the time. If your line is extremely stiff, I would guess it is a lower grade tygon, or fkae tygon...especially the blue stuff. I use this tygon from McMaster Carr, and I have planes 10 years old that I have never changed lines on:
Fuel and Lubricant Yellow Tygon PVC Tubing
Tygon Formulation: F-4040-A
Very flexible
Soft (Shore A57)
Temperature Range: -35° to 165° F
Use with barbed fittings
Not only will this tubing remain flexible when used with gasoline, heating oils, cutting compounds, and coolants, it also withstands lower temperatures than other fuel and lubricant tubing. Tubing is semi-clear yellow; you can see something is in the line, but the view is limited.
View information about the chemical compatibility of PVC tubing.
ID OD Wall Bend
Radius Max. psi
@ 73° F Available
Lengths, ft. Per Ft.
5/64" 9/64" 1/32" 1/4" 40 10, 25, 50 5552K43 $0.80
3/32" 3/16" 3/64" 1/4" 50 10, 25, 50 5552K22 .72
1/8" 1/4" 1/16" 1/4" 50 10, 25, 50 5552K23 .82
3/16" 5/16" 1/16" 1/2" 35 10, 25, 50 5552K24 1.17
1/4" 3/8" 1/16" 1" 30 5, 10, 25, 50 5552K25 1.49
5/16" 7/16" 1/16" 1 1/4" 25 5, 10, 25, 50 5552K26 1.91
3/8" 1/2" 1/16" 1 3/4" 20 5, 10, 25, 50 5552K27 2.23
3/8" 5/8" 1/8" 1" 35 2, 5, 10, 25, 50 5552K32 4.64
7/16" 9/16" 1/16" 2 1/4" 15 2, 5, 10, 25, 50 5552K33 2.93
1/2" 5/8" 1/16" 2 3/4" 15 2, 5, 10, 25, 50 5552K28 3.02
1/2" 3/4" 1/8" 1 3/4" 30 2, 5, 10, 25, 50 5552K42 5.47
5/8" 7/8" 1/8" 2 1/2" 25 2, 5, 10, 25, 50 5552K31 6.22
3/4" 1" 1/8" 3 1/4" 20 2, 5, 10, 20, 25 5552K29 7.03
For clunk, the best is the Bennelt filtered clunk for smoke. You can use it with fuel, it is heavy (compared to the heavy weight Du-Bro stuff) and it fliters
http://www.bennettbuilt.com/shop/Tan...Gas_Large.html
Jeff
Fuel and Lubricant Yellow Tygon PVC Tubing
Tygon Formulation: F-4040-A
Very flexible
Soft (Shore A57)
Temperature Range: -35° to 165° F
Use with barbed fittings
Not only will this tubing remain flexible when used with gasoline, heating oils, cutting compounds, and coolants, it also withstands lower temperatures than other fuel and lubricant tubing. Tubing is semi-clear yellow; you can see something is in the line, but the view is limited.
View information about the chemical compatibility of PVC tubing.
ID OD Wall Bend
Radius Max. psi
@ 73° F Available
Lengths, ft. Per Ft.
5/64" 9/64" 1/32" 1/4" 40 10, 25, 50 5552K43 $0.80
3/32" 3/16" 3/64" 1/4" 50 10, 25, 50 5552K22 .72
1/8" 1/4" 1/16" 1/4" 50 10, 25, 50 5552K23 .82
3/16" 5/16" 1/16" 1/2" 35 10, 25, 50 5552K24 1.17
1/4" 3/8" 1/16" 1" 30 5, 10, 25, 50 5552K25 1.49
5/16" 7/16" 1/16" 1 1/4" 25 5, 10, 25, 50 5552K26 1.91
3/8" 1/2" 1/16" 1 3/4" 20 5, 10, 25, 50 5552K27 2.23
3/8" 5/8" 1/8" 1" 35 2, 5, 10, 25, 50 5552K32 4.64
7/16" 9/16" 1/16" 2 1/4" 15 2, 5, 10, 25, 50 5552K33 2.93
1/2" 5/8" 1/16" 2 3/4" 15 2, 5, 10, 25, 50 5552K28 3.02
1/2" 3/4" 1/8" 1 3/4" 30 2, 5, 10, 25, 50 5552K42 5.47
5/8" 7/8" 1/8" 2 1/2" 25 2, 5, 10, 25, 50 5552K31 6.22
3/4" 1" 1/8" 3 1/4" 20 2, 5, 10, 20, 25 5552K29 7.03
For clunk, the best is the Bennelt filtered clunk for smoke. You can use it with fuel, it is heavy (compared to the heavy weight Du-Bro stuff) and it fliters
http://www.bennettbuilt.com/shop/Tan...Gas_Large.html
Jeff
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RE: Fuel clunk line for gas?
I store my planes nose down for more room. Leaving gas in the tank is not an option. I'll try some of this Viton tubing. Thanks moggy
#11
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RE: Fuel clunk line for gas?
I have just set up a Dubro 24oz tank with Viton as the clunk line. As it sits at the moment ( no fuel in it yet ) the clunk ( std Dubro ) does not even touch the bottom of the tank. Will it soften once fuel ( gas ) goes in it? I don't like the idea of leaving fuel in it for storage.
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RE: Fuel clunk line for gas?
Stihl dealers have a black flexable fuel line about twelve inch inlength for use inside fuel tank. It worksgreat for me. The costper piece was about $1.75. It stopped my problem of the clunk not returning tothe tank bottom.I also use a weedwacker weighted kiunk.
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RE: Fuel clunk line for gas?
ORIGINAL: 600Bob
I'm using the Rotoflow tanks now, never have to take them apart or fix leaks again...I hope.
I'm using the Rotoflow tanks now, never have to take them apart or fix leaks again...I hope.
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RE: Fuel clunk line for gas?
Is that flex piece Viton?
Looks like a good idea. The Viton I have is too stiff, I used a heavy clunk and had to put a nut on this for extra weight.
I'll try this, thanks
Looks like a good idea. The Viton I have is too stiff, I used a heavy clunk and had to put a nut on this for extra weight.
I'll try this, thanks
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RE: Fuel clunk line for gas?
ORIGINAL: OliverJacob
Is that flex piece Viton?
Looks like a good idea. The Viton I have is too stiff, I used a heavy clunk and had to put a nut on this for extra weight.
I'll try this, thanks
Is that flex piece Viton?
Looks like a good idea. The Viton I have is too stiff, I used a heavy clunk and had to put a nut on this for extra weight.
I'll try this, thanks
BYW this was not my idea I picked it up here on RCU
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RE: Fuel clunk line for gas?
Check out the fuel line made by Echo for their power equipment. Stands up very well to todays gas and is very flexible. It's also available in several sizes. I work on small engines for a living, and find the line from Echo to need less replacement than other brands I work on. Just ask you local dealer to show you the "bulk" Echo fuel line. I beleive what you need would be #90014 or #90015. I don't use gas anymore so I have sorta gotten away from the set-ups.