FIGURE 4-4. Injector Sleeve Holding Tool.

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FIGURE 4-3. Cylinder Head (Table 4-3 Reference)

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

FIGURE 4-5. Hydrostatic Tester and Plate.

TM 55-1905-223-24-5

(9)

Visually inspect the cylinder head capscrews for damaged threads,

corroded surfaces, or a reduced diameter (due to capscrew stretching).

NOTE

Do not reuse a capscrew that has damaged threads or a reduced diameter

from having been stretched.

(10) Replace damaged, worn, and corroded capscrews.

(11) Immediately after cleaning and inspecting, apply a film of clean engine

lubricating oil to capscrews that are to be used again.

(12) Clean the valves, springs, and retainers with solvent.

Cylinder head pressure test procedures:

(1)

Install two injector sleeve holding tools in each cylinder head, (FIGURE

4-4). Each injector sleeve holding tool consists of 2 hex head capscrews

(1, 5), flat washer (2), anvil (3) and mandrel (4).

FIGURE 4-4. Injector Sleeve Holding Tool.

(2)

Tighten the injector sleeve holding tool capscrews to the following

torque values:

(a)

Tighten to 45 in-lb torque.

(b)

Tighten to 90 in-lb torque.

(c)

Tighten to 130 in-lb torque.

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