FUEL TANK REPAIR (Sheet 2 of 2)
2. Inspect for cracks, fractures, deformation, and nicks. Fuel tank must be free of cracks, fractures, and
deformation, and must be free of nicks and scores in excess of 1/32 inch deep.
3. Inspect threaded screw holes for worn or damaged threads.
4. Inspect for flaked or chipped paint.
5. Inspect all welds for defects.
6. Inspect seals that are bonded to hull for looseness and wear.
1. To weld cracks, fractures, broken or damaged welds, or nicks and scores, refer to TM 9-237.
2. Replace loose or worn seals using adhesive.
3. Repair worn or damaged threads by chasing with a proper size tap or by installation of a new coil insert.
1. Install fabricated covers (Fig. 3, Appendix D) and new gaskets on crossover hose opening and on fuel tank filler
openings. Seal all other openings except one with radiator repair kit. In the remaining opening install a suitable
fitting from the radiator repair kit and introduce compressed air into fuel tank until a pressure of 3 psi has been
2. Hold pressure at 3 psi and inspect all joints for leaks by applying a soap (Item 11, Appendix B) and water solution
on the joints.
3. There must be no leakage. Leakage, if present, will be indicated by the presence of air bubbles in the soapy water
area, or by loss of air pressure as indicated by the gage.
4. Relieve pressure and rinse exterior of fuel tank with hot water. Allow to dry.
End of Task