Build Fuel Tank

• Cut 1/4"x4"x8*fuel tank with cold cut saw, band saw, or torch
• Clean edges, clean out inside of debris
• [2] Cut tank ends - 1/4"x4"x8" flats
• Spray paint pattern of filler cap on top tank closure
• Torch filler cap hole
• Drill screw holes for filler cap
• Fuel line is located at middle bottom of 8" face of tank - torch it out
• Cut a 1/4" fitting for fuel line
• Grind and ream all edges to be welded prior to welding
• Weld fuel line fitting (1/4" npt)
• Weld bottom and top onto fuel tank
• Screw in the filler cap
• Leak test the tank
  • Take off filler cap, tape up top
  • Take off fuel barb, screw in air hose barb
  • Fill tank with 15 psi with compressor.
  • Pour soap solution on seams to determine air tightness
  • Weld over leak spots, iterate as necessary
  • As final step prior to welding to frame - reconnect fuel hose barb, attach 1/4" hose and plug off hose, fill with gas
  • Check for any visible leaks, correct as necessary.
  • Drain fuel tank via attached hose.

Now it's ready for welding to frame.