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Unread 03-16-2013, 01:21 AM   #1
DYontheForum
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CJ7 Fuel Line

Hi I have an 81 Cj-7 and I am in the middle of a frame off of sorts. Anyway I am ordering my fuel/vapor line stuff and need to know what sizes of hard lines I need.

Thanks

I order the pre made brake lines and I wasn't impressed, they were very long.

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Unread 03-16-2013, 02:18 AM   #2
BagusJeep
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These are the original routings.

You can do them both in 5/16" though originally the return line was slightly smaller.

It often comes in 25' rolls for around $20 so if you are a real cheapskate you could just about use one roll if you have a tank vented through the cap, otherwise you need two rolls. The zinc plated steel is $20, the stainless is nearer $60. The only joins for which you need nuts are at the fuel pump and carb. You may consider buying or borrowing a flaring tool to get a nice flare on the ends and some proper clips to hold the line on.
20gal-tank.jpg   fuel-lines.jpg  
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Unread 03-16-2013, 02:58 AM   #3
dg6772
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I just stumbled across some, New, on ebay.
You could check those

From Dave G. in Muskegon
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Unread 03-16-2013, 06:35 AM   #4
skizriz
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I did like Bagus said. I used a 25' roll of PolyArmor in 5/16 for my fuel and return.
I used 1/4 for my vent line.
Total cost was about $40 for both rolls.

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Unread 03-16-2013, 11:22 PM   #5
DYontheForum
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I have all the bending, flaring, and cutting tools. I don't need to double flare any of those do I? Speaking of that what is double flaring supposed to be used on?
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Unread 03-17-2013, 12:22 AM   #6
skizriz
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Quote:
Originally Posted by DYontheForum
I have all the bending, flaring, and cutting tools. I don't need to double flare any of those do I? Speaking of that what is double flaring supposed to be used on?
No need to double flare anything but brake lines.
Look into a line called Poly Armor. It's very easy to work with, you can bend it with your hands without kinking it.

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Unread 03-17-2013, 12:57 AM   #7
DYontheForum
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Where did you get the poly armour from?
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Unread 03-17-2013, 04:24 AM   #8
skizriz
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Quote:
Originally Posted by DYontheForum
Where did you get the poly armour from?
Any auto parts store should have it. Costs a little over twenty bucks for a 25' roll. Lasts ten times longer than steel.

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Unread 03-17-2013, 09:29 AM   #9
DYontheForum
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Quote:
Originally Posted by skizriz View Post
Any auto parts store should have it. Costs a little over twenty bucks for a 25' roll. Lasts ten times longer than steel.

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Thank you very much sir.

Do you know where I can get all the bolt on clips that hold the lines to the frame?
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Unread 03-20-2013, 08:11 PM   #10
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I can't find poly armor anywhere locally.
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Unread 03-20-2013, 08:21 PM   #11
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http://www.autozone.com/autozone/acc...er=198103_0_0_

Comes in what size you need. Great stuff and as said very easy to bend.
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Unread 03-20-2013, 08:22 PM   #12
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http://shop.advanceautoparts.com/web...008%7CL3*15690

You can order it online from Advance Auto and have it delivered. Look on retailmenot.com for some sweet discount codes also.
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Unread 03-20-2013, 11:41 PM   #13
DYontheForum
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Quote:
Originally Posted by skizriz View Post
http://shop.advanceautoparts.com/web...008%7CL3*15690

You can order it online from Advance Auto and have it delivered. Look on retailmenot.com for some sweet discount codes also.
Thank ya sir. So I can use 5/16 for all of the fuel lines?
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Unread 03-21-2013, 05:26 AM   #14
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Quote:
Originally Posted by DYontheForum

Thank ya sir. So I can use 5/16 for all of the fuel lines?
You can, but I wouldn't. The return is 1/4", so is the fitting on the return on the filter, and at the tank . Yes a 5/16" connecting hose will work, but it's not the correct fit on the fittings.

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Unread 03-21-2013, 01:29 PM   #15
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Quote:
Originally Posted by DYontheForum

Thank ya sir. So I can use 5/16 for all of the fuel lines?
That's the size I use for both. It works fine.

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