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 248 of 657

TM 9-2320-260-34-1

3-62. CYLINDER HEAD lNSTALIATION

THIS TASK COVERS:

Installation

INITIAL SETUP

APPLICABLE MODELS

MATERIALS/PARTS

All

Gasket (Appendix D, Item 89)

Lubricating oil (Appendix C, Item 21)

TOOLS

General mechanic’s tool kit

(Appendix B, Item 1)

REFERENCES (TM)

TM 9-2320 -260-34P-1

Torque wrench, 3/4-in. dr.

(Appendix B, Item 2)

1-1/16-in. socket, 3/4-in. dr.

(Appendix B, Item 68)

Two guide screws (Appendix E, Figure E-5)

Installation

1.

2.

3.

4.

5.

6.

7.

8.

NOT E

Ensure mating surface of cylinder head is flat and polished

smooth.

Install cylinder head gasket (4) over two dowels (6) with side marked TOP facing up.

Install two guide screws (5) into cylinder block (7).

Install cylinder head (3) on cylinder block (7).

Lubricate threads of ten screws (1) with clean engine oil.

Install ten washers (2) and screws (1) in cylinder head (3) and cylinder block (7). Do not tighten

screws (1).

Remove two guide screws (5) from cylinder head (3).

Install two washers (2) and screws (1) in cylinder head (3) and cylinder block (7). Do not tighten

screws (1).

Tighten twelve screws (1) in sequence:

a. 20-25 lb-ft (27-34 N•m).

b. 80-100 lb-ft (108-136 N•m).

c. 265-305 lb-ft (359-414 N•m).

3-196