ASSEMBLY - TM-55-1905-223-24-50362

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Table 4-4. Oversize Valve Seat Insert Specifications-inch (mm)

TM-55-1905-223-24-5 Bowthruster Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 4-15. Expansion (Cup) Plug Specifications

TM 55-1905-223-24-5

ASSEMBLY

Install the pipe plugs, fuel inlet, and fuel drain fittings into the fuel passage.

(1) Make sure the fittings and plugs are installed in their original location.

(2) Apply teflon tape or liquid lead compound to the threads.

(3) Tighten the pipe plugs to the torque value given in Table 4-6.

Table 4-6. Pipe Plug Torque-ft-lb. (N )

Plug Size

Minimum

Maximum

Inch

1/16

3 (4)

6 (8)

1/8

5 (7)

10 (14)

3/8

35 (47)

45 (61)

1/2

60 (81)

70 (95)

3/4

65 (88)

75 (102)

135 (182)

145 (197)

(4) Apply a coat of expansion plug sealant to the outside diameter of the expansion (cup) plug. Apply a

coat of the sealant to the inside diameter at the water hole.

(5) Use the correct expansion plug driver to install the expansion plug (cup) plug.

NOTE

If you do not have expansion plug drivers, you can use a mandrel of the correct size to install the

plug. Install the plug so that it will be even with 0.090 inch (2.29 mm) below the chamber,

FIGURE 4-15. Do not push the plug to the bottom of the counterbore.

o Apply clean lubricating oil to the valve stems.

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