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05-07-2012, 11:43 AM #1
- Join Date
- May 2006
- Posts
- 267
- Location
- Austin, Texas
- Tractor
- Kabota 7500DT
Stop fuel line slip off very small hose barb ?
I have a gas powered Troybuilt string trimmer and had to replace the rotted neoprene fuel line which is maybe 1/8 inch o.d.and maybe 1/16 or 3/32 i.d.. The fuel line push fits onto a conventional small hose barb on the carb.
Problem is the i.d. of the replacement fuel line is a TINY bit bigger than the hose barb which is maybe 1/2 inch long. The replacement line slides on and off the barb fairly easily. Although I'm not sure it actually leaks I'm sure it will before long or will eventually pull off easily.
Can someone suggest a way to get a tighter fit ? I doubt there is even a model airplane hose clamp that small. I was going to wrap the barb with a wrap of electrical tape but thought it would corrode from the gas and would destroy the retaining effect of the barbs.
Is there some sort of glue or epoxy sealant I could put on the barb that is resistant to gas and would adhere to the metal barb and the neoprene line ?
I don't think I can find a slightly smaller fuel line or if I could I wonder if the gas flow through it would be sufficient.
Any suggestions would be very much appreciated.
BobFarmer Bob
Kubota 7500DST w/FEL,box blade,posthole digger,brush hog
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05-07-2012, 12:09 PM #2
- Join Date
- May 2006
- Posts
- 267
- Location
- Austin, Texas
- Tractor
- Kabota 7500DT
Re: Stop fuel line slip off very small hose barb ?
Correction- its not even a hose barb, just a small smooth 3/8 inch little metal tube that the fuel line is supposed to slide onto and be retained. So obviously for proper retention the fuel line i.d. is supposed to be slightly smaller than the tubes o.d. But I can only find replacement line whose i.d. is exactly the same as the o.d. of the metal tube, so it falls off with the slightest movement. Grrrrr.
Farmer Bob
Kubota 7500DST w/FEL,box blade,posthole digger,brush hog
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05-07-2012, 12:28 PM #3
- Join Date
- Jun 2011
- Posts
- 269
Re: Stop fuel line slip off very small hose barb ?
JB Weld ??
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05-07-2012, 01:03 PM #4
Re: Stop fuel line slip off very small hose barb ?
Use a small cable tie.
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05-07-2012, 01:27 PM #5
- Join Date
- Apr 2009
- Posts
- 197
Re: Stop fuel line slip off very small hose barb ?
steel wire wrapped around the hose and then twisted tight.
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05-07-2012, 01:28 PM #6
Re: Stop fuel line slip off very small hose barb ?
2nd, using a small zip tie.
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05-07-2012, 02:16 PM #7
- Join Date
- Feb 2011
- Posts
- 828
- Tractor
- Furakawa 351
Re: Stop fuel line slip off very small hose barb ?
They make a multitude of different fuel line sizes, and you want to get the right one to fit properly. I had a Weed eater and it had a bastard size hose. I finally found a guy that did a lot of repairs and had the right hose.
They make a metric and a standard size hose, and close does not work.
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05-07-2012, 02:33 PM #8
- Join Date
- Sep 2003
- Posts
- 18,924
- Location
- JACKSONVILLE, FL
- Tractor
- Power-Trac 1445, KUBOTA B-9200HST
Re: Stop fuel line slip off very small hose barb ?
J.J.
When I works, I works hard. When I sits and thinks, I goes to sleep.
Git er done.
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05-07-2012, 02:54 PM #9
- Join Date
- May 2006
- Posts
- 267
- Location
- Austin, Texas
- Tractor
- Kabota 7500DT
Re: Stop fuel line slip off very small hose barb ?
Wow ! Thanks for taking the time and all the responses and options from JB Weld to ziplocks to twisted wire to another i.d. fuel line that actually fits ! And I had no idea the neoprene fuel lines came in so many dimensions ! I'm sure any one of these solutions will do the trick. Thanks again, I'm really grateful.
BobFarmer Bob
Kubota 7500DST w/FEL,box blade,posthole digger,brush hog
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05-07-2012, 11:42 PM #10
- Join Date
- Apr 2011
- Posts
- 2,406
- Location
- St. Cloud MN
- Tractor
- Deere 4100
Slide a larger hose over the end of your small hose and then use a small hose clamp. Or several pieces that are sliced longitudinally, one over the other, so they can squeeze down.
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