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Farmall & IHC Tractors Discussion Forum
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fuel line issues

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nspec

05-21-2007 17:36:39




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Put a new fuel line on the super h. Hard to figure out how to route it. I ended up routing it through the gas tank support being careful it wouldn't vibrate and rub. Didn't seem to work between the support and the air cleaner assembly. Is this correct?

Anyway, the compression nut apparently misthread at the connection with the fuel strainer causing it to leak. Strainer threads are wrecked, so I'm ordering a new strainer. Is there a trick to tightening up on those compression nuts for the first time? How far in should the fuel line go, and how much should you tighten them? (I thought the resistance was the ferrule being formed, not a crossthread)

Thanks in advance.

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El Toro

05-22-2007 04:13:22




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 Re: fuel line issues in reply to nspec, 05-21-2007 17:36:39  
You push the copper tubing into the compression fitting as far as it will go. You should be able to start the compression nut by hand after installing the ferrule on the tubing. You should be able to tighten the nut by hand for several turns before using a wrench. This will keep you from cross-threading. Probably a 3/4 turn with a wrench is enough. If it seeps gas, snug it a little more. Hal

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RustyFarmall

05-22-2007 04:55:10




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 Re: fuel line issues in reply to El Toro, 05-22-2007 04:13:22  
Copper? Fuel line are supposed to be made of steel. Steel will withstand much more vibration without cracking than copper.



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El Toro

05-22-2007 05:29:31




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 Re: fuel line issues in reply to RustyFarmall, 05-22-2007 04:55:10  
I would agree with steel fuel lines. I thought they were using copper. Hal
PS: I have used copper tubing on fuel lines for stoves. Some I double flared and on some I used compression fittings.



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sflem849

05-21-2007 19:15:03




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 Re: fuel line issues in reply to nspec, 05-21-2007 17:36:39  
I just put new copper line on my SMTA and the ferral (sp) broke off very easy. It actually broke off by hand on the strainer end. That worked out to not be the greatest, but it still doesnt leak.
As for how far the line went in my IH dealer (Otter's in Burlington, WI) said BE SURE YOU STICK IT AS FAR IN THERE AS YOU POSSIBLY CAN AND HOLD IT IN THERE AS YOU TIGHTEN. If I remember mine went in a ways...1/4" and then I wiggled it around and it went in another 1/8"...Those are total guesses probably on the long side...
Mine did lead around the fitting on the high side, but then I tighetened it up a little bit more and it dried right up.
Good luck!
Scott

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