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Author Topic: New Fuel line  (Read 18615 times)

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Offline macrisel

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New Fuel line
« on: January 15, 2015, 01:00:40 PM »
So after getting stranded two times last summer, I decided to re-route my fuel line.  Both times, I would drive the jeep for about 30-40 minutes, park and turn the jeep off for 15-20 minutes, then hop back in and it would not start.  Both times it was very HOT and very HUMID outside.  While I'm not really convinced it was an issue of vapor lock, I moved my fuel line much farther away from the manifold to lessen the possibility.  I also came across an old Carter fuel filter in the barn I wanted to add to the mix.


Because of the extra length, the fuel line vibrates pretty bad at certain RPM's.  I am planning on adding a brace coming off of the horn bracket to tie the fuel line down.  Just for fun, I think I may also add three or four "calibrated" clothes pins to the line for car guys to laugh at :D

If I still have the starting issue, Scoutpilot is on standby for a carb rebuild!

Offline scoutpilot

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Re: New Fuel line
« Reply #1 on: January 16, 2015, 06:54:13 PM »
[size=12]The fuel line fitting and the tube itself will suffer severe vibration damage if you "tie it down" to anything on the fender. Engine vibration and torque induced twisting is why there is a rubber line going from the main fuel line which is attached to the frame, to the pump. Reorienting the pump top to a 90� angle, come off it with a fitting which will point the fuel line up and out at an angle sufficient to intersect a straight forward, level line from the the 90 on the filter. That's how I've run mine for years. No heat problems, no vibration problems. Just my .02. [/size][/b]
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Offline macrisel

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Re: New Fuel line
« Reply #2 on: January 17, 2015, 07:59:30 PM »
Do you care to post a photo?  I'm pretty sure I know what you are describing, but would like to double check.

The only reason I was going to tie the fuel line down was I afraid the vibrations might cause a fuel leak.

Offline scoutpilot

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Re: New Fuel line
« Reply #3 on: January 18, 2015, 05:22:36 AM »
[size=12]Sure. This configuration has served me well for years.[/size][/b]
« Last Edit: January 18, 2015, 05:28:48 AM by scoutpilot »
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Offline bretto

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Re: New Fuel line
« Reply #4 on: January 18, 2015, 06:30:55 AM »
I think I have asked this before but have forgot, what's tethered to the end of the keeper chain?
Brett Orem, UT� [size=14]PHOTO DIARY OF MY BUILD[/size][/URL]

Offline 1955CJ-5

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Re: New Fuel line
« Reply #5 on: January 18, 2015, 08:57:37 PM »
Quote
So after getting stranded two times last summer, I decided to re-route my fuel line.� Both times, I would drive the jeep for about 30-40 minutes, park and turn the jeep off for 15-20 minutes, then hop back in and it would not start.� Both times it was very HOT and very HUMID outside.� While I'm not really convinced it was an issue of vapor lock, I moved my fuel line much farther away from the manifold to lessen the possibility.� I also came across an old Carter fuel filter in the barn I wanted to add to the mix.


Because of the extra length, the fuel line vibrates pretty bad at certain RPM's.� I am planning on adding a brace coming off of the horn bracket to tie the fuel line down.� Just for fun, I think I may also add three or four "calibrated" clothes pins to the line for car guys to laugh at :D

If I still have the starting issue, Scoutpilot is on standby for a carb rebuild!

If you support it from the fender I'd be concerned about the movement of the engine on it's rubber mounts vs the relatively stable fender....If you could support it from the engine that may be better.....

I had problems when I was running an inline filter but no trouble after the filter was removed....

Are you using ethanol fuel? I realize that you may not have a choice...  I once had an MGB and a Ford F-250 that would vapor-lock on ethanol....one of the chains around here have always sold an ethanol mix...
1955 CJ-5, A friend for 58 years....1951 CJ-3A, a new addition. 1929 Model A Ford Closed Cab Pickup...

Offline scoutpilot

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Re: New Fuel line
« Reply #6 on: January 20, 2015, 06:35:38 AM »
Quote
I think I have asked this before but have forgot, what's tethered to the end of the keeper chain?
Sorry. I thought I answered this yesterday. At the other end of the chain is the fuel pump manual priming lever. It sure makes it easier to test carbs.
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Offline macrisel

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Re: New Fuel line
« Reply #7 on: January 20, 2015, 11:12:12 AM »
Quote
Are you using ethanol fuel? I realize that you may not have a choice...  I once had an MGB and a Ford F-250 that would vapor-lock on ethanol....one of the chains around here have always sold an ethanol mix...

I am not running an ethanol fuel mix in the jeep any more (or any of my small engines for that matter...)  A private gas station in town has 93 octane pure gas at one pump.  He started carrying it after several of us car club guys along with small engine guys (lawn mowers, boaters, loggers) bugged him into keeping it.

I usually keep 10 gallons at the house and run it through all my ATV's, lawn mowers, motorcycles, chainsaws, etc....pretty much everything I have that runs off of carbs and sits for extended periods of time.  While it does make the jeep easier to start when it has been sitting for while, the big difference I see is in the small motors.  It seemed I was replacing a gas line or cleaning a carb every year on either the weedeater, chainsaws, leaf blower or something else when I was running E85.  Since I made the switch late in 2013, no more rebuilds and the motors start MUCH easier.  Made it much easier to justify the extra .12 cents per gallon for 93....

Offline macrisel

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Re: New Fuel line
« Reply #8 on: January 20, 2015, 11:19:46 AM »
Scout,
What is involved in unbolting the top of the fuel pump and rotating it around?  As you can see, my fuel inlet is next to the outlet and it looks like yours is on opposite sides of each other.

Will it affect anything else by rotating the top around?

Offline 1955CJ-5

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Re: New Fuel line
« Reply #9 on: January 20, 2015, 12:51:57 PM »
Quote
Made it much easier to justify the extra .12 cents per gallon for 93....

We also have an independent station that sells non-ethanol. The fellow that runs it told me that he has to pay extra for fuel without the ethanol...go figure...

This is how I routed my fuel line, for what it's worth......I've not noticed any problems....



1955 CJ-5, A friend for 58 years....1951 CJ-3A, a new addition. 1929 Model A Ford Closed Cab Pickup...

Offline johnrb3b

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Re: New Fuel line
« Reply #10 on: January 20, 2015, 02:59:21 PM »
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We also have an independent station that sells non-ethanol. The fellow that runs it told me that he has to pay extra for fuel without the ethanol...go figure...
Your tax dollars at work.
Ethanol gas prices are subsidized by the US government.
Without the government price support, ethanol gas would be more expensive.

In addition to lower maintenance, non-ethanol also gives slightly better gas mileage.
I guess it's a case of principals over practicality.
« Last Edit: January 20, 2015, 03:01:54 PM by johnrb3b »
1946 2A - - - 1949 me - older than most of my Jeeps
1954 3B - - - 1957 Wagon - - - 2010 4-door JK
past Jeeps ---> '54 3B - no tub --- '59 3B - no engine
past addiction - VW ---> '69 bus --- '70 camper

Offline scoutpilot

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Re: New Fuel line
« Reply #11 on: January 21, 2015, 05:21:48 AM »
1955CJ5, that's an excellent example of what Macrisel can do without moving the top. Mac, I think you have your answer there.
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Offline athawk11

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Re: New Fuel line
« Reply #12 on: January 21, 2015, 02:13:17 PM »
Hey Randy,
Where did you get the fitting between your Carter WO and the Carter filter?

Tim
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1-1946 CJ2A

Offline 1955CJ-5

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Re: New Fuel line
« Reply #13 on: January 21, 2015, 02:42:34 PM »
Quote
Hey Randy,
Where did you get the fitting between your Carter WO and the Carter filter?

Tim

I'm pretty sure I got the fitting here, scroll down....part # 646052

https://www.willysjeepparts.com/Fuel_Lines.htm
« Last Edit: January 21, 2015, 03:10:29 PM by 1955CJ-5 »
1955 CJ-5, A friend for 58 years....1951 CJ-3A, a new addition. 1929 Model A Ford Closed Cab Pickup...

Offline scoutpilot

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Re: New Fuel line
« Reply #14 on: January 21, 2015, 03:19:21 PM »
Quote
Hey Randy,
Where did you get the fitting between your Carter WO and the Carter filter?

Tim
Tim. NAPA. (or any Good auto parts store) 1/8" X 1/8" nipple. In the Eaton Weatherhead Brass Drawers. I like the ones with the 7/16" hex in the middle.

Rick
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