Fuel Line Deteroiation - Tygon Fuel Line

[jamesemu]

Has anyone experienced rubber fuel lines being damaged by the modern fuels?

I am told a good alternative is using a fuel Line material called "Tygon", and is supposedly almost indestructible. Apparently is a opaque lime green color. I dont really know what it is made out of, but do appreciate knowing if anyone out there has used it?

Thanks for your comments
jamesemu

 

[Kytim]

While I have seen it, it's only been in sizes appropriate to small 2-stroke engines. I never knew it was available in larger sizes.

 

[Breeze]

Modern fuels?

I've heard of issues related to Ethanol/Gasoline mix on various systems but I've never heard of Diesel Oil having the same effect but that and a nickel will get you a nickel's worth.

The biggest "modern" with diesel is the elimination of sulfur, which has no effect on fuel lines but makes the crankcase oil much less acidic, a good thing. When sulfur burns it forms sulfur dioxide which when mixed with water forms sulfuric acid (eats bearing journals).

Lack of sulfur reduces lubricity but no point complaining as low/no sulfur diesel is what you get! HFRR 460 is the highest number (lowest lubricity rating) recommended for diesel engines and low sulfur fuel does not meet that requirement without additives. I assume that refineries provide the additives to increase lubricity in low sulfur fuel. Some go to the store shelf for additives but I can't imagine an industry providing millions of gallons of fuel daily that would be harmful to millions of diesel engines without the use of expensive off the shelf additives every time one fills the tank. There is probably a difference of opinions on this : )

Tygon fuel line F 4040 A is translucent yellow and is used in small engines, Rv's and lubrication lines.

Do you have a problem or are you anticipating one? UV is usually the culprit in rubber like compounds becoming brittle and cracking.

 

[jamesemu]

Thanks for the comments. I should have mentioned fuel line deterioration, I was not talking about diesel, only gasoline engines. On the Tygon fuel line, I also thought it was only available in the smaller sizes, but noticed online places that have 1/4" id, and maybe larger.

I am ready to try it, but was thinking I might find someone that has used it on a gas mower?

Thanks

 

[jamesemu]

Breeze---thanks for your response. Sorry, I missed your question. I have not, as yet , experience internal crude coming loose and contaminating my gas tank or filter, but I read where others with a Kubota T1770 with the Kohler Command Twin engine, have had that happen. And it is not fun I want to have and have to remove and clean out the tank.
Thanks again.

 

[Kytim]

Thanks for the comments. I should have mentioned fuel line deterioration, I was not talking about diesel, only gasoline engines. On the Tygon fuel line, I also thought it was only available in the smaller sizes, but noticed online places that have 1/4" id, and maybe larger.

I am ready to try it, but was thinking I might find someone that has used it on a gas mower?

Thanks

In light of those parameters, Yes I have used the small Dia. hose you are speaking of. But only on small 33cc 2-stroke engines. And to report, It did move gas from one point to another. With my limited usage it preformed as well as other clear fuel lines.

 

[Breeze]

I have not, as yet , experience internal crude coming loose and contaminating my gas tank or filter, but I read where others with a Kubota T1770 with the Kohler Command Twin engine, have had that happen.

You can't go wrong with Tygon for a gas engine. How do those Kohlers hold up in general? I've gone with only Hondas on my small equipment after too much foolishness elsewhere but have never had a Kohler.