914 with Carbs, Suggestions for the return fuel line Options

[porkchopexpress]

I am getting ready to button up my fuel system after pulling the tank for cleaning and replacing the soft lines.

I have a 72 that a PO carb converted. The return line is capped off back in the engine bay past the plastic fuel line, which seems a bit foolish to plug the line so far back.

Does anyone have a solution for capping the line at the tank? I do evenaually want to change back to FI so I don't want a solution that is permanant.

[SirAndy]

Why not use it? Even with carbs you'd benefit from circulating the fuel ...
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[Woody]

Why not use it? Even with carbs you'd benefit from circulating the fuel ...
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I disagree, recirculating the fuel heats it up. Cool fuel atomizes better. I also believe most manufacturers have gone with returnless systems for that same reason.

[SirAndy]

Why not use it? Even with carbs you'd benefit from circulating the fuel ...
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I disagree, recirculating the fuel heats it up. Cool fuel atomizes better. I also believe most manufacturers have gone with returnless systems for that same reason.

If you ever had fuel boil in the carb bowls from heat-soak, you'd know that the tank is a much better heat sink than them tiny bowls.
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[DBCooper]

If you ever had fuel boil in the carb bowls from heat-soak, you'd know that the tank is a much better heat sink than them tiny bowls.
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Once fuel gets into the bowls the only place it's going is through the jets. There's no use for a return with carbs.

[SirAndy]

If you ever had fuel boil in the carb bowls from heat-soak, you'd know that the tank is a much better heat sink than them tiny bowls.
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Once fuel gets into the bowls the only place it's going is through the jets. There's no use for a return with carbs.

Last i checked there is usually a fuel line connected to that carb ...
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[DBCooper]

If you ever had fuel boil in the carb bowls from heat-soak, you'd know that the tank is a much better heat sink than them tiny bowls.
(IMG:style_emoticons/default/popcorn[1].gif)

Once fuel gets into the bowls the only place it's going is through the jets. There's no use for a return with carbs.

Last i checked there is usually a fuel line connected to that carb ...
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Sure, but once the gas goes past the needle valve in the carburetor it isn't coming back out, how could it? Fuel might pick up a little heat in the fuel lines, but how much? But more importantly if you're boiling fuel in the fuel lines in your engine compartment then you have other far more serious problems, because that same boiling air is what's going into your engine through the carburetors and is what's being used to cool the engine. If that air's that hot you aren't far away from losing your engine anyway.

Vapor lock usually happens when you shut off the car and stop air flow, which lets heat travel through metal into the carburetors, or into the fuel pump or regulator when they're in the engine compartment. So put in phenolic spacers. But that shouldn't affect fuel lines, which should be spaced out from any heated metal part of the engine and isolated from heat. If they aren't then that should be corrected anyway.