TM-9-2320-260-34-1

TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 1 OF 2

JULY 1994

TM-9-2320-260-34-1 - Page 101 of 657

TM 9-2320-240-34-1

3-18. CYLINDER HEADS REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

INITIAL SETUP

APPLICABLE MODELS

All

TOOLS

General mechanic’s tool kit

(Appendix B, Item 1)

Torque wrench, 3/8-in. dr.

(Appendix B, Item 4)

Torque wrench, 1/2-in. dr.

(Appendix B, Item 3)

Torque wrench, 3/4-in. dr.

(Appendix B, Item 2)

MATERIALS/PARTS

Gasket (Appendix D, Item 89)

REFERENCES (TM)

TM 9-2320-260-20

TM 9-2320 -260-34P-1

EQUIPMENT CONDITION

• Fuel supply and return lines removed

(TM 9-2320-260-20).

• Water manifold removed (para. 6-3).

• Exhaust manifold removed (para. 3-11).

• Intake manifold removed (para. 3-10).

• Valve crossheads removed (para. 3-16).

• Fuel crossover connectors removed (para. 3-17).

NOTE

• All cylinder heads are replaced the same way. This procedure

covers number 1 cylinder head.

• Mark cylinder head for installation.

• For disassembly, cleaning, inspection, and assembly of cylinder

heads, refer to para. 3-51.

a. Removal

1.

Remove twelve screws (1) and washers (2) from cylinder head (3) and cylinder block (6) in reverse

order of tightening sequence as shown.

2. Remove cylinder head (3) and gasket (4) from cylinder block (6). Discard gasket (4).

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