Tygon!

[Merc 2.5]

Does anyone find Tygon fitted to carb motors goes rock hard over a period of time.
i use Tygon 4040-A. 3/32" ID x 3/16" OD.

I used pro marines and it just dont get hard , softer with age

[rochelle howell]

For fuel supply lines If your Motor is carbed you can safely use the non fuel injection grade fuel supply line , if EFI I suggest use the high pressure lines , Most fuel lines are placarded as to their safe usage , you can also look at the end of the lines and tell , the low pressure have fewer nylon supports than the higher pressure lines , the high pressure EFI fuel supply lines have lots more support nylon support the high pressure ...
Most boaters I know are choosing the eth. Compatible fuel lines ...

Good luck,
Jay

If your not going to Napa, call first to be sure ethanol compatible fuel line in your size(s) is in stock. I went to FOUR local auto part stores in the Cincinnati area (advance, auto zone, k.o.I., O'Reilly's) only to be told unavailable or special order!!!!! BUMMER!!!!!
Spoiled for years having Napa around the corner. Was very disappointed in not being able to finish up a carb and fuel pump rebuild with fresh fuel lines from local store same day.
Couldn't believe with all today's pump gas having ethanol, these stores would carry anything but ethanol rated fuel line!

[LakeFever]

Local Stihl dealer always has lots of good fuel line product. Aeroquip if you want to go one and done

[Chaz]

If your not going to Napa, call first to be sure ethanol compatible fuel line in your size(s) is in stock. I went to FOUR local auto part stores in the Cincinnati area (advance, auto zone, k.o.I., O'Reilly's) only to be told unavailable or special order!!!!! BUMMER!!!!!
Spoiled for years having Napa around the corner. Was very disappointed in not being able to finish up a carb and fuel pump rebuild with fresh fuel lines from local store same day.
Couldn't believe with all today's pump gas having ethanol, these stores would carry anything but ethanol rated fuel line!

I have an account @ U.S.Plastics / Tamco, where I buy push-lok tubing and fittings. (Yes they probably even mfg the tygon that McMaster sells , ) for air brake , other pneumatic and water transport. Each has their perspective range of applications.

The reason I mentioned NAPA and specifically the EFI hose is because in it's list of applications it says it can be run "submerged" . I already posted a picture of it tied in a knot ... So we know it's pliable .. reliable and if your not stuck in yesterday ... desirable ...

Not bad, 3 pages over ................ 1/8" hose ....

Next week we'll cover "new age" two layer hyd hose with crimped stainless ends..
Advance .. I have an account there too. OK , clip a corner off my man card I deserve it .. LOL The junk they sell is not meant for you or I unless you need a quickie fix on the side of the road to get you home. They tell you if your going to run it submerged then they will give you a Dayco part # . Which I'll bet is a EFI type hose ...

https://shop.advanceautoparts.com/p/...986%7CL3*15373

[mach351]

I’ll one up that hyd hose Chaz.....I made mine with those stainless ends, but used 4000psi nylon braided bonded hose used for forklift masts.....sweeeeet

or I guess I could use tygon

[Motv18]

Not sure if tygon is butyl ether safe. It pops up in non alcohol fuel every once in a whhile. Even the good Napa stuff won’t last if you supply of fuel has it because the distribution center brought in the only other road fuel that meets epa oxygenated gas besides methanol and ethanol.

Nothing like gummed up tanks and vst full of butyl rubber droppings when it phase separates.

[Chaz]

Not sure if tygon is butyl ether safe. It pops up in non alcohol fuel every once in a whhile. Even the good Napa stuff won’t last if you supply of fuel has it because the distribution center brought in the only other road fuel that meets epa oxygenated gas besides methanol and ethanol.

Nothing like gummed up tanks and vst full of butyl rubber droppings when it phase separates.

I just got off the phone with Ron Capps he said all tygon hose in the NAPA F/C ....

Made these kids cry to find out ...



Every single one of these people were suprized to find out ...

[LakeFever]

Not sure if tygon is butyl ether safe. It pops up in non alcohol fuel every once in a whhile. Even the good Napa stuff won’t last if you supply of fuel has it because the distribution center brought in the only other road fuel that meets epa oxygenated gas besides methanol and ethanol.

Nothing like gummed up tanks and vst full of butyl rubber droppings when it phase separates.

Ya damn right. Nashty

[rochelle howell]

Not sure if tygon is butyl ether safe. It pops up in non alcohol fuel every once in a whhile. Even the good Napa stuff won’t last if you supply of fuel has it because the distribution center brought in the only other road fuel that meets epa oxygenated gas besides methanol and ethanol.

Nothing like gummed up tanks and vst full of butyl rubber droppings when it phase separates.

So that's what's eating up ethanol resistant fuel lines? Seen the Melted looking blobs stuck to the bottom of carb bowls and thought WTF!?! after replacing all fuel lines, fuel filters, and rebuilding fuel pump, and cleaning the carbs.
Is the fuel line with the liner inside impervious to this butyl ether?
Need to start a thread on this, to enlighten a few more folks!

[Chaz]

You'll need to put them in a time machine and take them back before the turn of the century when it was legal for refineries to blend MTBE Methyl tert-butyl ether in gasoline as a lead substitute.
And ... LOL ... no it didn't eat fuel line, but it was he11 on our fresh water. Mostly from old leaking underground tanks.

Wanna know what eats alky resistant fuel line ... ??? CHEAP AZZ " RESISTANT " fuel line ...

It's kinda like wrist watch's ..
You can go to the mens jewlery counter at Wal-Mart and get you a nice water resistant watch for $29.95
I'll take ya spear fishin off the reef outside the inlet . I'd give it to about 8 to 10 feet before it marked your first trip to the bottom ...

Speakin of quality ... Mach 351 , I'll see your Gucci forklift hose. and raise ya ..

This is the high class - Grey poop-on model ..

Straight stainless fitting $ 73.95
90* stainless fitting $ 107.49
tygon hose .27 c

[Motv18]

Your thinking Tetra Ethel Lead Chaz

much like ethanol becomes famalgahide which becomes acidic acid

propyl alcohol / iso propanol / 2-propanol converts to acetone normally not an issue, but eats plastic like butyl Ether eats rubber. Only some though. Theirs a chart for reactivity somewhere.

Mtbe came around in the ninety’s and literally ruined every car on the road and every outboard that didn’t get updated like the y2k bug. And the reason you see so much grey silicone fuel line. Canada banned it. It’s also why tanks are above ground at gas stations. Ground water contamination. Ethanol bills have made it all but disappear. Will poke it’s head randomly. We got it here in Missouri during the gas price crunch/ gas relief act that stoped mandates on ethanol and stations could get whatever was cheapest.

Worst to me is when they put the alcohol back in when they get good clean gas, by adding heat which is a pinte of pure methanol. Cupple stations were doing that here think I got them stopped unless they test positive for water. Probably not.

[mach351]

Speakin of quality ... Mach 351 , I'll see your Gucci forklift hose. and raise ya ..

This is the high class - Grey poop-on model ..

Straight stainless fitting $ 73.95
90* stainless fitting $ 107.49
tygon hose .27 c

LMFAO you win I give up

[Chaz]

Your thinking Tetra Ethel Lead Chaz

much like ethanol becomes famalgahide which becomes acidic acid

propyl alcohol / iso propanol / 2-propanol converts to acetone normally not an issue, but eats plastic like butyl Ether eats rubber. Only some though. Theirs a chart for reactivity somewhere.

Mtbe came around in the ninety’s and literally ruined every car on the road and every outboard that didn’t get updated like the y2k bug. And the reason you see so much grey silicone fuel line. Canada banned it. It’s also why tanks are above ground at gas stations. Ground water contamination. Ethanol bills have made it all but disappear. Will poke it’s head randomly. We got it here in Missouri during the gas price crunch/ gas relief act that stoped mandates on ethanol and stations could get whatever was cheapest.

Worst to me is when they put the alcohol back in when they get good clean gas, by adding heat which is a pinte of pure methanol. Cupple stations were doing that here think I got them stopped unless they test positive for water. Probably not.

No sir , no confusion here.

Tetraethyllead is the lead in leaded fuels. It can still be sold in racing fuels, AVgas, etc. but not for highway use.

As I stated MTBE was used as a TEL replacement , then why and when it was replaced. No need in repeating my words.
Try to buy 5 or 55 gallons of it .. let me know how that works out ..

Problems arose when Ethanol was used to replace MTBE, not before.

There's no need in dancing around all the iso,

propanol,

ethyl, methyl,

hydroxyl groups ... just call it wood or corn. I'll know what your tryin to say

[Motv18]

Heh 5-55 is easy. start! Brand fuel additive That stuff bill dance did commercials fore is pure mtbe little bottles of it in Wally World, and the occasional random gas station. Not sure you can buy a gallon but you can clean them out of the little bottles.

Guess i I never thought when mtbe actually started, till the epa mandate came around for oxygenated fuel.

[Merc 2.5]

If you’d like me to send you a piece to try I have ROLLS of the product that works for me and my customers ?

Jay

Jay my package showed up yest , and I just wanted to say that u didn't have to include everything that u did ,but what a pleasant surprise ,, thanks. Soon I get a chance I'll swap it out and post results, again thanks for all the goodies