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Topic: Fuel line replacement (Read 1458 times) previous topic - next topic

Re: Fuel line replacement

Reply #20 –
Drained and pulled the fuel tank , pulled all the covers in the bays( could have never pulled them through on mine). Replace all the  lines ( fuel cooler feed and return) . 2 of us 2 days

Re: Fuel line replacement

Reply #21 –
Quote from: Pierce & Gaylie Stewart –
I use braided vinyl sleeving to install everything from wires to fuel lines. https://www.amazon.com/s?k=braided+vinyl+sleeve&crid=1A2JJWRS2Z4LW&sprefix=braided+vinyl+sleeve%2Caps%2C375&ref=nb_sb_noss You can pull long distances without a problem. I pulled an HDMI cable from the front console to the rear by myself where it wound around body parts but was EZ with the sleeving. Best if it's the same size or slightly smaller as you can expand it as you install it on the cable, hose, etc. It even expands over fittings as the end of hoses.

It also protects against chafing and rodents. Use shrink tubing over the ends to make it neat. It stiffens whatever it's over and makes it super slick.

Replacing fuel lines from the tank to the side generator is super simple using a long steel brake line, the braided sleeving, and a crow's foot for the tank fittings, all without even sliding the generator out. 

Pierce

Hello Pierce

I'm trying to picture this...

Did you put the fuel line inside the Braided Vinyl Sleeve before or after pulling it into position?

What diameter Braided sleeve did you use?

Thanks!

David

Re: Fuel line replacement

Reply #22 –
"Unfortunately I am getting old and have less ambition, strength, and desire..."

Amen!

Re: Fuel line replacement

Reply #23 –
Quote from: Shave Dores –
Hello Pierce
I'm trying to picture this...
Did you put the fuel line inside the Braided Vinyl Sleeve before or after pulling it into position?
What diameter Braided sleeve did you use?
Thanks!
David
David,

The fuel line is put inside the sleeve before you try to install it. It makes the whole thing slighltly less flexable and has a very low friction coefficient plus protecting against any sharp edges. Since it's available in several colors with different stripes, you can color code the hoses, etc.

The best way is to take a piece of hose and a little vinyl sleeve and experiment. I buy a rolls of different sizes  I like it the same size or smaller than the hose as you can expand it as you put it on as it makes a tight fit and the whole thing slides through passages, etc very easily. Takes about a 30 seconds to see what the whole process is. If a fitting is at the opposite end, I like to slide a piece of shrink tubing on first and then the sleeve. Then,  you can slide the sleeve inside the shrink tubing, heat the shrink tubing and you have a very neat package. Nice to have a pair of sharp small sizzors to trim any errant bits before sliding it inside the shrink tubing. It also works great for wires, either one or several in the same sleeve. Protects the wires against sharp edges.

You don't want the sleeve to have a larger inside diameter than the outside diameter of what you are running through it.

We used high heat, fire resistive type in aircraft engine compartments. Not much more expensive.

So, go to NAPA and buy a little and try it. I use Ebay for rolls.

Pierce

Re: Fuel line replacement

Reply #24 –
Quote from: Ndnflyr –
I have been following this thread and have read all that I could find in the archives on the subject of replacing the fuel lines. Thanks to all the ones who documented their experience especially the ones who posted pictures. In my 99 U320 40' My generator will not run without having a separate fuel source with hose going to the fuel pump and my Aqua hot looses it's prime if I do not run it every other day.  I have taken the cover off the passenger side fuel tank but am confused About removing the  drivers side fuel tank cover. The side wall extends downward to bottom side of the top battery tray. It does have triangular shaped cutouts but screws are not very accessible. 

There's always the Jerry Whiteaker method for doing the generator fuel lines (one of my favorite photos ever posted on the forum):

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Re: Fuel line replacement

Reply #25 –
Thanks for continuing the thread. I have not had the time to tackle this job yet but read all the posts gathering wisdom and courage. One thing that I am confused about is when you use the vinyl sleeve do you take the cover off the chase or do you thread it through with out taking the cover off?

Re: Fuel line replacement

Reply #26 –
Depends on how bold you are and flexible

Re: Fuel line replacement

Reply #27 –
Quote from: Ndnflyr –
T do you take the cover off the chase or do you thread it through with out taking the cover off?

You have a 320 with an A/H unit. With this you will need to take the covers off the cable tray. With all the hoses for the A/H heating lines, pawer steering, air, electrical, and fuel lines you have 7# of sugar in a 5 # sack. On an older Grand Villa coach or one with out an A/H unit you can sometimes do the pulls with the covers on.

Mike

Re: Fuel line replacement

Reply #28 –
Oh that is the good news I was waiting for!  For those with AH do you change out the antifreeze lines as well?
 

Re: Fuel line replacement

Reply #29 –
Quote from: Ndnflyr –
For those with AH do you change out the antifreeze lines as well?

In all the years of working on these coaches we have changed out 1 section of hose in the engine compartment that is part of the engine preheat due to a hole in the hose due to routing resulting in the failure.  If all the hoses had to be change out that would be a 14 on a scale of 1 to10

Mike