4-20. FUEL CAP AND NECK ASSEMBLY - REPLACE/REPAIR.
This Task Covers:
Tool Kit, General Mechanic's: Automotive (Appendix B, Section III, Item 1).
Lockwasher (Appendix H, Section II, Item 7).
Unit shut down and cool.
Enclosure removed (para. 4-13)
DO NOT smoke or use open flame when working on the fuel system. An
explosion may occur, causing severe injury or death.
Use extreme caution when working with fuel.
Use caution when removing fuel, cap, and neck assembly; hoses may quickly
give way and cause injury.
Removal. (Refer to Figure 4-8.)
Remove pan head screw (1) and lockwasher (2) from fuel level sending unit (3), holding ground wire (4).
Discard lockwasher (2).
Loosen clamp (7) and slide down on hose (9). Loosen clamp (9 from fuel tank (10) sliding it up on hose (8).
When removing the hose it is necessary to break the seal first. Use channel locks
and twist slightly to break seal. Take caution not to collapse the neck on the fuel
tank by gripping too tightly.
Remove hose (8) from fuel tank (10).
Remove clamps (7 and 9) from hose (8) and hose (8) from cap and strainer assembly (5).
Remove six pan head screws (11), locknuts (12) and ground wire (4) from cap and strainer assembly (5)
and flange (6).
Inspect fuel hose for cracks or deterioration. Replace if necessary.
Replace any part that shows obvious wear or damage.