TM 9-2320-280-34
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Manual References
All except "A2" models
TM 9-2320-280-10
TM 9-2320-280-20
Tools
TM 9-2815-237-34P
General mechanic's tool kit:
Equipment Condition
automotive (Appendix G, Item 1)
Oil pump removed (para. 3-16).
Materials/Parts
Drivebelts loosened (TM 9-2320-280-20).
Two plain seals (Appendix E, Item 228)
General Safety Instructions
Anaerobic gasket sealer (Appendix B, Item 45)
Cleaning will be done in a well-ventilated
Lubricating oil (Appendix B, Item 32)
area and a fire extinguisher will be kept
Drycleaning solvent (Appendix B, Item 14)
nearby when solvent is used.
Adhesive (Appendix B, Item 1)
Personnel Required
Maintenance Level
One mechanic
Direct support
One assistant
a. Removal
NOTE
This task is for 6.2 L engine rear main oil seal replacement only.
Disassembly of 6.5 L engine is necessary before replacing 6.5 L
engine rear main oil seal. Refer to TM 9-2815-237-34 for 6.5 L
engine rear main oil seal replacement.
Before replacement of seal, thoroughly inspect engine crankcase
ventilation system, tubes, rubber hoses, and CDR valve for
blockage which may have caused pressure build-up in crankcase
and seal failure. Correct as necessary.
Gently tap rear main bearing cap from engine with rubber or
brass mallet.
1.
Remove two long capscrews (9), two short capscrews (10), and main bearing cap (6) from engine block (3).
NOTE
The rear oil seal may be a nylon rope or a neoprene rubber.
Perform step 2 for a nylon rope seal. Perform step 3 for a
rubber seal.
The crankshaft may need to be rotated by front crankshaft bolt
to assist in seal removal.
2.
Screw a sheet metal screw (1) into nylon rope seal (2). Using pliers, pull nylon rope seal (2) from
engine block (3) seal groove. Discard nylon rope seal (2).
3.
Using pliers, pull seal (4) from engine block (3). Discard seal (4).
4.
Remove seal (5) from rear main bearing cap (6). Discard seal (5).
WARNING
Drycleaning solvent is flammable and will not be used near an
open flame. A fire extinguisher will be kept nearby when the
solvent is used. Use only in well-ventilated places. Failure to do
this may result in injury to personnel or damage to equipment.
5.
Using drycleaning solvent, thoroughly clean the seal groove (8), oil relief slot (7), and engine block (3).
Change 2
