Table 4-7. Fuel and Water Pump Bore Bushing Specifications

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FIGURE 4-62. Installation Tool and Repair Sleeve.

TM-55-1905-223-24-1 Main Propulsion Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Repair Crankshaft and Gear Group.

TM 55-1905-223-24-1

Table 4-7. Fuel and Water Pump Bore Bushing Specifications - Inch (mm)

Worn

New

Ref. No.

Dimension Location

Limit

Minimum

Maximum

132770

(Standard)

1.571

1.565

1.569

Inside Diameter

(39.90)

(39.75)

(39.85)

132771

0.010 (0.25) Undersize

1.561

1.555

1.559

Inside Diameter

(39.65)

(39.50)

(39.60)

132772

0.020 (0.51) Undersize

1.551

1.545

1.549

Inside Diameter

(39.40)

(39.24)

(39.34)

Idler Gear and Shafts.

(1)

Check the bushing bore of the camshaft and water pump idler gears; replace if worn larger

than 1.8785 inch (47.714 mm).

(2)

Check the camshaft and water pump idler gear shafts; replace if smaller than 1.872 inch

(47.55 mm).

(3)

The cam and water pump idler gear end thrust must be less than 0.018 inch (0.46 mm).

Replace the gear housing (paragraph 3-21).

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