TB 9-2320-335-13&P
3-79.1. WATER CROSSOVER MAINTENANCE (SERIAL NUMBERS 300000 AND ABOVE)
This task covers:
a. Removal
c.
Installation
b. Inspection
INITIAL SETUP:
Tools
Manual References
General mechanic's tool kit:
TM 9-2320-387-24-1
automotive (Appendix B, Item 1)
TB 9-2320-335-13&P, Appendix E
Maintenance and repair shop equipment:
Equipment Condition
automotive (Appendix B, Item 2)
Glow plug controller removed
Materials/Parts
(TM 9-2320-387-24-1).
Two gaskets (Appendix A, Item 44)
Thermostat removed (para. 3-76.1).
Lockwasher (Appendix A, Item 185)
Maintenance Level
Unit
a. Removal
1.
Loosen hose clamps (2) and (19) and disconnect hoses (1) and (18) from water crossover (24).
2.
Loosen hose clamp (15) and disconnect hose (16) from water crossover (24).
3.
Remove cooling hose (23) from elbow (4).
4.
Remove nut (5), lockwasher (6), washer (7), ground wire (8), and ground strap (9) from stud (10).
Discard lockwasher (6).
5.
Remove stud (10), washer (11), three capscrews (21), and water crossover (24) from cylinder heads (14)
and (17).
6.
Remove gaskets (13) and (20) from cylinder heads (14) and (17). Discard gaskets (13) and (20).
7.
Remove elbow (4) from water crossover (24).
b. Inspection
1.
Clean gasket surface on water crossover (24) and cylinder heads (14) and (17).
2.
Inspect thermostat bypass nipple (22), surge tank hose nipple (3), and water pump hose adapter (12)
for cracks or breaks. Replace if defective.
c. Installation
1.
Install elbow (4) on water crossover (24).
2.
Install gaskets (13) and (20) on cylinder heads (14) and (17).
3.
Install water crossover (24) on cylinder heads (14) and (17) with stud (10), washer (11), and three
capscrews (21). Tighten capscrews (21) and stud (10) to 25-35 lb-ft (34-48 Nm).
4.
Install ground wire (8) and ground strap (9) on stud (10) with washer (7), lockwasher (6), and nut (5).
5.
Install cooling hose (23) on elbow (4).
6.
Connect hose (16) on water crossover (24) and install hose clamp (15).
7.
Connect hoses (1) and (18) on water crossover (24) and tighten hose clamps (2) and (19).
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