Replacing fuel lines

[silversport]

On an 8V 71 in an 4106,  I need/should to replace the fuel lines. What am I looking for? There is a lot of choices out there.

[richard5933]

Assuming that the current hoses are in place and the correct ones, the simplest way to replace them is to take then to a shop that makes hoses and have them make a new set just like the old. Every town that has truck repair shops will have at least one of these hose shops.

[luvrbus]

Cloth covered  low pressure ,hose shops usually sell you high pressure rubber coated hose hard to work with then they crack,If you have the OEM  Aeroquip hose just buy the hose stock and make your own the fitting are reusable and easy to work with  that is why they used Aeroquip  150psi working pressure is more than you need for a 70psi system,Stainless low pressure covered silicone hoses are real nice but they come at a high price   good luck   

[dtcerrato]

What Luvrbus said... And the ends are solid brass & serviceable over & over - not throw away. After 42 years of same bus ownership this is a subject near & dear to our maintenance schedule. BTDT over & over with the same gold ends.

[Bill Gerrie]

Dan
I have used nothing but the replaceable hose ends for years but never seen brass ones. Mine are steel.

[luvrbus]

Dan
I have used nothing but the replaceable hose ends for years but never seen brass ones. Mine are steel.

Dans are collectable lol I run across a few brass Aeroquip fitting not many anymore except on old marine engines,you can still buy those in stainless from Parker for  a price 

[dtcerrato]

Bill we have a couple steel ended hoses but most are "red" brass - the highest quality with more copper content according to the scrappers

Luvrbus - BINGO!  I just realized why most of our hose ends are brass! Our 53 has a 69 Grey Marine engine. You were the one that gave me the clue on why I couldn't find a DD serial number during our rebuild. Lol

[Utahclaimjumper]

Years ago I replaced all the fuel lines on my "62" 06,, They were run along the curb side wall and a bear to get to..  I replaced all with lengths of pre-made steel brake line that I pieced together as I went along the line..  Most of the old line had rusted thru from the inside out.. That was in 1980 and the same lines are still in service..>>>Dan

[windtrader]

On an 8V 71 in an 4106,  I need/should to replace the fuel lines. What am I looking for? There is a lot of choices out there.

What gives you the idea the fuel lines need replacing in the first place? Everything on these buses mostly looks old, just curious how one knows when lines are just aged but got life in them? Personally, I've got a list of parts I know need work and no desire to add more to the fix-it list. lol

[buswarrior]

Lines have hardened, seeping fuel, outer jacket decaying and got some visible perishing . The usual list for rubber products.

And, when you have a "finished" bus, you need to find something else to "catch-up" next... no work on the bus makes the busnut grumpy?

Happy coaching!
Buswarrior

[luvrbus]

Some hoses get harden then with no flex they crack the fitting on both the fuel and oil lines lol hoses are a lot easier to replace than some of the damn fittings

[Tedsoldbus]

Yikes! At first I was with wind trader. I've had my bus just a year now. I have changed two badly cracked ratty looking heater hoses that got cooked in the engine box area and it was amazing to watch the new ones get made as described above. Just take them the old one, tell them what it is, and very fun to be handed a brandy new one to put back on. But I got a bit frightened when I see all the salty guys talk like they change fuel lines all the time!!?? I've also wondered about my wheel bearings. Two old guys told me if it they ain't leaking don't mess with them. Another said do it after so many miles?? I change oil and fuel filters probably more than I need to, but fuel lines? Checking what mine are made of is I guess is a good start.

[luvrbus]

Some change lines every 5 years some wait till one leaks or goes on the highway, any hose is exspensive now, radiator hose sell by the inch now buying by the foot is a thing of the past unless you have deep pockets 

[Tedsoldbus]

So do they get gummed up or is changing just preventative? Any advice on wheel bearings?

[richard5933]

So do they get gummed up or is changing just preventative? Any advice on wheel bearings?

They get dried out, stiff, and start to crack. They can also collapse on the inside, but that doesn't seem as common.

Wheel bearings? Have you got any idea when they were last serviced?