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Fuel line installation

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Old May 4, 2021 | 02:50 PM
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Default Fuel line installation

OK, Dumb question:

I need to replace the 2 fuel lines that go into the fuel pump on my 72 SB. How do I prevent gasoline from dripping with the lines off the fuel pump, or will the gasoline in the short lines drip out and then stop.

I already have the lines and new clamps.
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Old May 4, 2021 | 03:04 PM
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Originally Posted by crawfish333
OK, Dumb question:

I need to replace the 2 fuel lines that go into the fuel pump on my 72 SB. How do I prevent gasoline from dripping with the lines off the fuel pump, or will the gasoline in the short lines drip out and then stop.

I already have the lines and new clamps.
When I replace my fuel pump, S hose, and steel fuel line to the carburetor, I pinched the rubber hose off at the fuel tank with a small pair of vise grips. My hoses at the tank were new so they were still soft.
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Old May 4, 2021 | 04:24 PM
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Strong set of hand clamps or small vise-grip. You need one on the rubber outlet hose on the fuel tank. If you have a return line, you may need a second clamp. Don't worry about the little fuel that might back-flow from the carb and fuel line to it. Just have something ready to mop it up. Also have a fire extinguisher at-hand when you are 'playing' with fuel.

P.S. If the rubber line from the fuel tank is in bad shape, you might start your efforts by replacing it. (Put a clamp on the old line and remove the downstream end. Put another clamp on the new piece of line. Pull the old line off the tank nipple and immediately use a finger on the other hand to block the flow. Then grab the new hose/clamp and position it so that you can remove your finger and push the new hose over the nipple. Very little fuel loss....)

Last edited by 7T1vette; May 4, 2021 at 04:28 PM.
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Old May 4, 2021 | 06:02 PM
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Originally Posted by 7T1vette
Strong set of hand clamps or small vise-grip. You need one on the rubber outlet hose on the fuel tank. If you have a return line, you may need a second clamp. Don't worry about the little fuel that might back-flow from the carb and fuel line to it. Just have something ready to mop it up. Also have a fire extinguisher at-hand when you are 'playing' with fuel.

P.S. If the rubber line from the fuel tank is in bad shape, you might start your efforts by replacing it. (Put a clamp on the old line and remove the downstream end. Put another clamp on the new piece of line. Pull the old line off the tank nipple and immediately use a finger on the other hand to block the flow. Then grab the new hose/clamp and position it so that you can remove your finger and push the new hose over the nipple. Very little fuel loss....)


literally just did this replacing fuel pump..
one of the more recent additions work very well and taiwan made..
GEARWRENCH Small Hose Pinch Off Pliers, 3/4" O.D. Capacity - 3791 - - Amazon.com GEARWRENCH Small Hose Pinch Off Pliers, 3/4" O.D. Capacity - 3791 - - Amazon.com
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Old May 5, 2021 | 10:24 AM
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I had some cheap hose pincher clamps from harbor freight that do a great job and dont cut the fuel lines. If you use vise grips or something like that slip a piece of hose over the sharp edges so you dont damage your fuel hose
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