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Jerry Can Modification

Contributed By: Ethan Brady

Tired of your "Blitz" can not blitzing very fast? Finding yourself holding your jerry can forever as the gas slowly trickles into your tank? Wait no more, as this easy inexpensive fix will have the gas flowing like it should. What this fix will do is replace that tiny air hole with a larger hole and will prevent massive amounts of fuel from spilling onto the ground or all over the side of your vehicle.

Materials list:

  • 3'-4' of �" ID fuel line, or similar hose unaffected by fuel. It must fit unside your fuel filler hose that screws onto the jerry can and still have room for gas to get through.
  • 2 plastic zip ties
  • 1' of baling wire
  • Fuel float (old FSJ fuel sender float works great!)
  • 5 gal gas can and filler attachment


  • Wire cutters
  • Knife
  • Adjustable pliers

What to do:

Remove the filter from the end of the jery can's filler attachment with your adjustable pliers. Insert the fuel line into the filler attachment. Allow 4-5 inches to stick out of the end that will be inserted into the gas tank. Loop the hose around so it makes a U turn at the opening of the filler. Take a zip tie and tie it to the filler neck near the opening. Tie another zip tie around to secure the end of the rubber hose.

Now take the bottom end of the hose(that will be in the jerry can once the filler attachment is screwed onto the can) and tie it around the fuel float. Make sure the float and tubing will reach to the bottom of the jerry can. Tie the tubing so that the end of the tube is parallel to the rest of the tube. Just a regular knot. No fancy Boy Scout stuff here . You don't want to crush the tubing by tying too tightly, so I used bailing wire to secure the tubing instead.

That's it!

When ready to use, open the jerry can, place the float/tube into the can and screw the filler attachment onto the can. Use the rubber gasket from the lid to form a tight seal. This larger gasket will also cover up the original inadequate air hole.

Pour the gas as you normally would. The float keeps the tube on top of the fuel, and air can enter the can as fuel exits into your gas tank. Result: Faster fuel flow and less tired hands and no more passengers whining "Are you done, yet?"

Ethan B
83 Wagoneer Ltd. "Mud Puppy"
Colorado Full Size Jeep Association Member

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