TM 9-2320-272-24-1
3-17. FUEL DRAIN AND BYPASS TUBING (M939/A1) REPLACEMENT
THIS TASK COVERS:
b. Installation
a. Removal
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
TM 9-2320-272-10
M939/A1
TM 9-2320-272-24P
TOOLS
EQUIPMENT CONDITION
General mechanic's tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 144)
l Parking brake set (TM 9-2320-272-10).
l Hood raised and secured (TM 9-2320-272-10).
MATERIALS/PARTS
l Water pump removed (para. 3-68).
Air compressor-to-engine coolant return tube
Five lockwashers (Appendix D, Item 348)
l
Lockwasher (Appendix D, Item 349)
removed (para. 3-55).
Antiseize tape (Appendix C, Item 72)
NOTE
Have drainage container ready to catch fuel.
Disconnect fuel supply tube (7) from fuel pump shutoff valve (8).
1.
Disconnect fuel return tube (10) from fuel pump elbow (23).
2.
Remove screw (16), lockwasher (15), washer (14), clamp (13), and spacer (12) from left side of engine
3.
block (1) and bracket (11). Discard lockwasher (15).
Remove screw (17), lockwasher (18), and bracket (11) from left side of engine block (1). Discard
4.
lockwasher (18).
NOTE
Step 5 may not be required for all vehicles.
Remove screw (28), lockwasher (27), washer (26), two clamps (25), fuel supply tube (7), and fuel return
5.
tube (6) from intake manifold (24). Discard lockwasher (27).
Remove nut (2), lockwasher (3), screw (5), and clamp (4) from left side of engine block (1). Discard
6.
lockwasher (3).
Remove nut (21), lockwasher (22), screw (19), and clamp (20) from tubes (6) and (7) left side of
7.
engine block (1). Discard lockwasher (22).
Disconnect fuel return tubes (6) and (10) from tee (9).
8.
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