Oil Pan Replacement

TM 9-2320-363-34-1 · Chapter 3 — Power Package Maintenance

This task covers: a. Removal b. Cleaning c. Inspection d. Repair e. Installation

Tools and Special Equipment:                     References:
Shop Equipment, SC 4910-95-CL-A31                LO 9-2320-363-12
Tool Kit, SC 5180-90-CL-N05
                                                 Equipment Condition:
Materiais/Parts:
                                                 Reference                Condition Description
Gasket                    P/N 8929102
                                                 LO 9-2320-363-12         Engine Oil Drained
Oil, Lubricating          Appendix B, Item 37
                                                 General Safety instructions:
Compound, Pipe            Appendix B, Item 15
Sealing                                              I
Sealant, RTV              Appendix B, item 52                       WARNING
                                                         To prevent injury, compressed
Personnel Required: (2)                                  air will not exceed 30 psi (207
                                                         kPa). Use only with effective
                                                         chip guarding and personal
                                                         protective equipment, goggles,
                                                         shield, and gloves.

TM page 3-221

Illustration from TM 9-2320-363-34-1 (PDF page 297)

NOTE

Procedure is the same for both vehicles except where noted. M915A2 is shown.

1. M915A2: RAISE AND SUPPORT VEHICLE TO ALLOW SUITABLE CLEARANCE BETWEEN OIL PAN AND FRONT AXLE FOR OIL PAN REMOVAL.

2. REMOVE 10 BOLTS (1), 10 ISOLATORS (2), AND 10 SPACER SLEEVES (3) FROM OIL PAN (4).

CAUTION

Handle oil pan with care. Dropping or bumping could cause unrepairable damage.

3. REMOVE OIL PAN (4) CAREFULLY TO AVOID DAMAGE TO OIL PUMP PICKUP TUBE (5) AND SCREEN ASSEMBLY (6).

TM page 3-222

Illustration from TM 9-2320-363-34-1 (PDF page 298)

4. REMOVE OIL PAN GASKET (7) FROM OIL PAN (4).

WARNING To prevent injury, compressed air will not exceed 30 psi (207 kPa). Use only with effective chip guarding and personaI protective equipment, goggles, shield, and gloves. **CAUTION** Do not use solvents or petroleum distillates to clean oil pan gasket or isolators. To do so could result in damage to equipment.

1. CLEAN ISOLATORS, OIL PAN, AND OIL PAN GASKET SURFACES WITH MILD SOAP AND WATER. DRY WITH COMPRESSED AIR.

TM page 3-223

Illustration from TM 9-2320-363-34-1 (PDF page 299)

2. REMOVE RTV SEALANT FROM PAN RAIL JOINT FACES OF FLYWHEEL HOUSING (1), GEAR HOUSING (2), GEAR CASE COVER (3), AND CYLINDER BLOCK (4) WHERE CONTACT IS MADE WITH OIL PAN GASKET. MAKE SURE ALL OLD RTV SEALANT IS REMOVED FROM SEALING SURFACES,

1. MAKE SURE OIL PUMP PICKUP TUBE AND SCREEN ASSEMBLY ARE NOT DAMAGED.

2. CHECK OIL PAN FOR DAMAGE. REPLACE AS NECESSARY.

3. INSPECT BOLT ISOLATORS FOR DRYNESS, CRACKS, OR TEARS. REPLACE AS NECESSARY.

CAUTION

Failure to hold insert while installing nut or pipe plug could allow insert to spin and score plastic side of oil pan.

1. HOLD FLATS OF INSERT (1) TO PREVENT SLIPPAGE AND REMOVE PIPE PLUG (2).

2. REMOVE NUT (3), INSERT (1), AND SEAL RING (4) FROM OIL PAN (5), DISCARD SEAL RING.

3. INSTALL NEW SEAL RING (4) ON FLANGE OF INSERT (1) AND INSTALL INSERT (1) IN OIL PAN (5).

4. INSTALL NUT (3) ON INSERT (1). HOLD FLATS OF INSERT (1) AND TIGHTEN NUT (3) TO 136-145 LB-FT (184-196 N.m).

5. COAT THREADS OF PIPE PLUG (2) WITH PIPE THREAD SEALING COMPOUND AND INSTALL PIPE PLUG (2) IN INSERT.

TM page 3-224

Illustration from TM 9-2320-363-34-1 (PDF page 300)

NOTE Procedure is the same for both vehicles except where noted. M915A2 is shown.

1. PIACE OIL PAN GASKET (1) ON OIL PAN (2) WITH SEAL LIP TOWARD OIL PAN GROOVE.

2. PRESS OIL PAN GASKET (1) COMPLETELY DOWN INTO GROOVE AT EACH CORNER OF OIL PAN (2). REPEAT AT POINTS MIDWAY BETWEEN CORNERS, HALVING DISTANCE BETWEEN INSTALLED SECTIONS UNTIL OIL PAN GASKET (1) IS COMPLETELY INSTALLED.

TM page 3-225

Illustration from TM 9-2320-363-34-1 (PDF page 301)

CAUTION

Be careful when installing oil pan. Leaks can occur if RTV sealant rolls, twists, or is otherwise dislodged.

3. APPLY THIN BEAD OF RTV SEALANT TO PAN RAIL JOINT FACES OF FLYWHEEL HOUSING (3), GEAR HOUSING (4), GEAR CASE COVER (5), AND CYLINDER BLOCK (6).

CAUTION

Handle oil pan with care. Dropping or bumping could cause unrepairable damage.

NOTE

Be careful not to dislodge oil pan gasket when installing oil pan.

4. INSTALL OIL PAN (2) ON CYLINDER BLOCK (6).

5. INSTALL 10 SPACER SLEEVES (7), 10 ISOLATORS (8), AND 10 BOLTS (9).

TM page 3-226

Illustration from TM 9-2320-363-34-1 (PDF page 302)

CAUTION Check position of spacer sleeves before tightening bolts.

6. TIGHTEN OIL PAN RETAINING BOLTS TO 18-22 LB-FT (25-30 N.m) IN SEQUENCE SHOWN.

7. INSTALL OIL PAN DRAIN PLUG (10) AND TIGHTEN TO 33-37 LB-FT (45-50 N.m).

8. M915A2: LOWER VEHICLE TO GROUND.

NOTE Follow-on Maintenance: Fill oil pan with engine lubricating oil (LO 9-2320-363-12).

TM page 3-227