What are you using for fuel lines?

[Paul S]

I had a problem on a trip this weekend with fuel lines and a pinhole sucking air; I want to replace everything from the fuel / water separator to the engine.  Has anyone made up custom line sizes using AN fittings?  Most of the hoses are no longer available through MCI.

[ol713]

  Hi;
     Replaced my fuel lines with "air" lines.  They were bought thru Motion Industries and the
     ends are re-usable. I would think any well stocked industrial outlet would have the
     lines.  Just ask if the lines are compatible with diesel. I replaced my lines one at a
     time so as not to get things mixed up
                                        Good luck,  Merle.

[buswarrior]

X2. Find your local industrial supplier, hydrulic hose supplier, hose doctor, that sort of search.

They should have an extensive back room full of every conceivable connector, hose and fitting.

The really great  ones, will whip up the replacements while you wait with all the other guys replacing stuff on their heavy equipment.

Label everything as you take them off, take tons of digital pictures to remind you what you did, keep the old ones until the new ones are successfully installed, or you have nothing left to start over from if something goes wrong.

Big Transit here always used the blue cloth covered, wire re-inforced air line for all the on-engine fuel lines.

Protect from chafing or rubbing.

Happy coaching!
Buswarrior

[luvrbus]

Dorman 800 series plastic is just for fuel all the newer stuff uses it cost like 10 bucks for 25 ft of 1/2 inch the fitting get pricey though so does the made up hoses

[richard5933]

I carry a length of Parker Push-Lok fuel line and a few fittings for use as emergency repairs. Easy to make a fuel line on the fly with this stuff.
The lines connecting the Perkins engine on my generator to the hard pipe is made of this stuff. It's held up for 45 years with the slide going in and out for maintenance. Must be somewhat durable.

[luvrbus]

I carry a length of Parker Push-Lok fuel line and a few fittings for use as emergency repairs. Easy to make a fuel line on the fly with this stuff.
The lines connecting the Perkins engine on my generator to the hard pipe is made of this stuff. It's held up for 45 years with the slide going in and out for maintenance. Must be somewhat durable.

g

The stuff does not welding sparks or wires shorted out against it lol don't ask how I know

[richard5933]

g

The stuff does not welding sparks or wires shorted out against it lol don't ask how I know

Sounds like you had a fun day
Like I said, other than the generator lines I carry it in case I need to make a fuel line in the field and not for regular use.

[richard5933]

Related question...
Now that this is on my mind, I'd like to get a few spare Parker Push-Lok brass fittings. Anyone know off-hand what size the inlet/outlet on the GM OEM fuel filters are?

[chessie4905]

Be better to check and verify yourself. It sucks when you go to use a fitting you got specifically when it is incorrect. For my generator, I'm installing aux fuel tank, ss braided, teflon lined lines with appropriate fittings. If I would replace main fuel lines, I would get appropriate braided lines with correct reuseable fittings.

[Paul S]

Thanks guys, good stuff.  Getting one new hose made today so I can at least move the bus, as of the moment it will not stay running without the electric prime pump turned on.

Thanks for the heads up on the Parker stuff, I have enough lines on the bus and tractor stuff around here I may just buy the crimping tool so I can do everything at home.

[Paul S]

Ended up getting 3 new hoses made.  Used a vacuum pump for bleeding brakes to help re-prime the system and all is well.  On to the next maintenance challenge!