BETTER fuel lines?

guy48065

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Aug 31, 2008
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When I go to the parts counter to buy new hoses I always get black rubber tubing and am never offered anything else.

Is this better than the synthetic tubing used in race applications and virtually everything else new?
 

dingbat

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Always use OEM hoses on motors. Seems to hold up better than most.

Like Trident fuel line for feeds
 

alldodge

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In most cases your not going to find USCG Type A1 fuel line in an auto store, maybe napa. USCG type lines are the only line allowed on a boat

Type A1 fuel supply
Type A2 fill and vent
 

guy48065

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So any youtube videos I see with silicone lines...flat-out illegal?
 

Scott Danforth

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So any youtube videos I see with silicone lines...flat-out illegal?

pretty much.

most you-tube vids also are done by amateurs and have erroneous information in them.
 

dingbat

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So any youtube videos I see with silicone lines...flat-out illegal?

I’m guessing your talking about Tygon tubing.

Tygon is EPA approved for a number of application, just not boats. Fuel lines on boats are flame resistant, thus the heavy outer covers.

It’s primarily designed for small engine use but would be legal for use under the cowling on an outboard. Not so much on an I/O
 

guy48065

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Where do I look to find out which of you guys is correct?
 

dingbat

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Where do I look to find out which of you guys is correct?

We are both right.

Type A1and A2 are fuel feed and fuel fill hoses. A2 hose from gas cap to fuel tank. A1 hose from fuel tank to primer bulb, etc.

They do not make Type A “tubing” such as used in fuel distribution (fuel rail to carbs) and vacuum hoses.
 

guy48065

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Thank you AllDodge but pg 2 "Applicability" doesn't include outboard motors. That must be the difference alluded to in post 6.
Post 8 totally confuses me but doesn't seem applicable to outboards either.
 

matt167

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Technically, and only technically outboards with portable fuel tanks are exempt from requiring special fuel lines except basic EPA standards. once a fuel line is permanently installed/ permanent tank used, the USCG requirement stands.
 

dingbat

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Thank you AllDodge but pg 2 "Applicability" doesn't include outboard motors. That must be the difference alluded to in post 6.
Post 8 totally confuses me but doesn't seem applicable to outboards either.
Permanently mounted fuel tanks and the associated fuel components are not “part of an outboard engine”. You still have to comply up to where the fuel system connects to the outboard

183.507 General.
Each fuel system component on a boat to which this subpart applies must meet the requirements of this subpart unless the component is part of an outboard engine or is part of portable equipment.

IT’S THE LAW – EPA:
1045.1 Does this part apply for my products?
(2) The requirements of this part related to evaporative emissions apply to fuel lines and fuel tanks used with marine engines that use a volatile liquid fuel (such as gasoline) as specified in 40 CFR part 1045.112. This includes fuel lines and fuel tanks used with auxiliary marine engines. This also includes portable marine fuel tanks and associated fuel lines.

https://law.resource.org/pub/us/cfr/ibr/001/abyc.H-24.1993.pdf
 
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guy48065

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Thanks for the clarification matt167. Now I understand the requirements difference between an outboard with detachable tank and fuel line vs other configurations with "permanent" lines & mounted tanks.
 
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