Fuel line separating!! WTH? - Pensacola Fishing Forum

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Old 05-23-2019, 01:25 PM   #1
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Default Fuel line separating!! WTH?

So I bought all new fuel lines and primer bulb last summer. My 1982 DT55 Suzuki has been stalling and VERY hard to start. I have to use starting fluid most of the time. So last night I took fuel lines off and noticed a plastic liner was coming away from the actual fuel line. It looks wrinkled and funky. Did some research and found this is common especially in Atwood brand fuel lines and the plastic insert can delaminate and cause problems!!.
What brand fuel lines do ya'll recommend? Are they all made with the plastic insert these days?? All I have used in non-ethanol so I am confused why the hell this happened to new fuel line.


thanks in advance
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Old 05-23-2019, 02:28 PM   #2
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Happened to me once too. By the time I figured it out I had all new ignition components, quadruple cleaned carb, new gas tank, primer bulb, etc... stupid fuel line liner had crumbled and clogged the pump. I went to the sto', got a few feet of good old black rubber line and never had another issue.
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Old 05-23-2019, 02:48 PM   #3
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Under the deck hose and I used this from my above deck tank to the water-fuel separator all the way in the Suzuki motor to the fuel rail. This is top of the line hose.
Series 368 Low-Permeation Marine Fuel Hose



This for a carry on fuel tank (5 to 8 gallon) to an outboard.
Series 337 Silverado 4000 Low-Permeation Fuel Line
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Old 05-23-2019, 03:10 PM   #4
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Well that is a crazy thing. I haven't heard of it happening on non ethanol fuel usage.
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Old 05-23-2019, 03:13 PM   #5
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Quote:
Originally Posted by shtbrd1 View Post
So I bought all new fuel lines and primer bulb last summer. My 1982 DT55 Suzuki has been stalling and VERY hard to start. I have to use starting fluid most of the time. So last night I took fuel lines off and noticed a plastic liner was coming away from the actual fuel line. It looks wrinkled and funky. Did some research and found this is common especially in Atwood brand fuel lines and the plastic insert can delaminate and cause problems!!.
What brand fuel lines do ya'll recommend? Are they all made with the plastic insert these days?? All I have used in non-ethanol so I am confused why the hell this happened to new fuel line.


thanks in advance
.....
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Old 05-23-2019, 03:14 PM   #6
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Could be a matter of where you buy your fuel. Everyone seems to focus solely on the ethanol, but there are a lot of other chemicals that can be in gasoline. There is no set definition of "gasoline" it is just a motor fuel composed of a blend of petroleum-based components with a set octane rating and vapor pressure. Many of the off-brand distributors (ie: the ones that typically sell non-ethanol gas) source their gas from suppliers that basically blend in anything that they can buy cheap like off-spec solvents, off-spec chemical precursors, etc. Anything that'll burn and can be used as a fuel. That's why they can usually sell their gas at a discount vs the name brands. So just because it is non-ethanol doesn't mean it's necessarily better for your fuel system.

Buy aviation gas if you want the pure stuff.
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Old 05-23-2019, 03:25 PM   #7
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Some two stroke oil mixed with 100LL sure would smell...fast!
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Old 05-23-2019, 04:34 PM   #8
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I think I would avoid burning 100LL in an outboard.
Not sure what it would do, probably nothing. But not worth the risk.
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Old 05-23-2019, 04:53 PM   #9
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Quote:
Originally Posted by Play'N Hooky Too View Post
Could be a matter of where you buy your fuel. Everyone seems to focus solely on the ethanol, but there are a lot of other chemicals that can be in gasoline. There is no set definition of "gasoline" it is just a motor fuel composed of a blend of petroleum-based components with a set octane rating and vapor pressure. Many of the off-brand distributors (ie: the ones that typically sell non-ethanol gas) source their gas from suppliers that basically blend in anything that they can buy cheap like off-spec solvents, off-spec chemical precursors, etc. Anything that'll burn and can be used as a fuel. That's why they can usually sell their gas at a discount vs the name brands. So just because it is non-ethanol doesn't mean it's necessarily better for your fuel system.

Buy aviation gas if you want the pure stuff.
Hmm, this is not correct for the most part.....
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Old 05-23-2019, 05:25 PM   #10
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Quote:
Originally Posted by delta dooler View Post
Hmm, this is not correct for the most part.....
Let me guess you work in the fuel industry

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