Silicone petrol pipe.
- Thread starter The yaki
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FWIW, my post earlier referred to silicone hose in marine applications and is nearly 10 years out of date. Out of curiosity I've done some "current" research. I found that there are now some suppliers (who I never heard of until yesterday) selling silicone hoses that have an inner liner of different material that (per the seller) makes them suitable for fuel/oil." OTOH, major manufacturers, Goodyear and Gates, for example, do not sell/list any silicone hose for fuel/oil use.
Silicone is still specifically NOT for marine (or aircraft) fuel/oil use and the US DOT does not list any silicone hose as approved for automotive fuel or oil.
I found another interesting fact - braided SS hose is, of course, just braided SS over a standard hose. That "standard" hose could be any of four different types; Three of them are not recommended for ethanol fuel! Life is confusing nowadays...
Silicone is still specifically NOT for marine (or aircraft) fuel/oil use and the US DOT does not list any silicone hose as approved for automotive fuel or oil.
I found another interesting fact - braided SS hose is, of course, just braided SS over a standard hose. That "standard" hose could be any of four different types; Three of them are not recommended for ethanol fuel! Life is confusing nowadays...
Fast Eddie
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None ethanol braided hose has to be the worst possible option as the braiding hides the degradation symptoms (swelling etc) until it’s too late.
Tornado
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Re stainless lines, ive always wonders what hose type was hidden within. Other than aesthetics, i cannot see the need for them on our unpressurized fuel line setups. You cannot see deterioration on the rubber. There is a risk of abrasion against painted or electrical parts, cannot easily remove from a spigot with the crimped ends and there is the big cost.
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I have my s/s braided line on my bike for over 10 years. I bought the fuel line from (B.C.S. in Nova Scotia), in a roll/crimp kit tool with extra ferrules and with enough line to do about two or three tank/carbs combo for dual Amal Mk1's setups. No plastic parts. The alloy banjo's don't crush the filters as the plastic ones tended to do.
No deterioration, still to this day.
I have the US made petcocks that have the brass round shutoff valve and have never looked back. Perfect setup with no leaks. Just don't over tighten the attachment at the bottom of the petcock and your good as gold.
Cheers,
Tom
No deterioration, still to this day.
I have the US made petcocks that have the brass round shutoff valve and have never looked back. Perfect setup with no leaks. Just don't over tighten the attachment at the bottom of the petcock and your good as gold.
Cheers,
Tom
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Been there and got the T shirt, basket bike came with a box of new parts bought in the 90's including a fuel line in braided stainless. Used in 2010 with E5 and one spring a couple of years later turned the fuel on for the first start of the year and the fuel gushed from behind the braid. Behind the braid the rubber hose had perished.
concours
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Braided stainless became a fad, trying to mimic race cars, with braided stainless HIGH pressure fuel & oil lines.
The ridiculous look of braided stainless radiator hoses, secured with a conventional worm gear hose clamp, hidden with a faux hex fitting makes me laugh every time.
Same with gravity feed fuel line made from "braided stainless".
Simply jewelry, that adds no performance or durability upgrade.
I observed several years ago, jap bikes of the 80's forward had fuel line that stayed pliable 10,20 years.
The two layer design, was part of the secret. UV resistant outer cover. The MotionPro hose comes closest.
The ridiculous look of braided stainless radiator hoses, secured with a conventional worm gear hose clamp, hidden with a faux hex fitting makes me laugh every time.
Same with gravity feed fuel line made from "braided stainless".
Simply jewelry, that adds no performance or durability upgrade.
I observed several years ago, jap bikes of the 80's forward had fuel line that stayed pliable 10,20 years.
The two layer design, was part of the secret. UV resistant outer cover. The MotionPro hose comes closest.
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One requirement for marine line is very low vapor emission because the line will be in a engine compartment and the vapor will create a vapor hazard. Thankfully, bikes do not have this problem so a wider range of hose is acceptible.
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Sorry, that was supposed to be fire hazard, maybe should not comment before coffee.
Tornado
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Hmmm....a local dude with a mk3 I'm helping to fix issues on it, has stainless fuel lines, likely from at least 10 yrs ago, possibly more. We've been chasing a leak, sorting carb bowl warpage and new gaskets....might just be the old lines....
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Let us know if it is the lines.
The yaki
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Tornado
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Did you get the pink?
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Partial to the blue myself .
