Repair Cylinder Block Croup. (FIGURES 4-79 through 4-103)

TM 55-1905-223-24-4

4-14. Repair Cylinder Block Croup. (FIGURES 4-79 through 4-103)

This task covers:

Inspection,

b. Repair.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's

Cylinder head removed (para. 2-40).

rail and marine diesel engines,

Flywheel removed (para. 3-29).

5180-00-629-9783

Crankshaft removed (para. 4-13).

Combination wrench set, metric

-1Omm thru 24mm,

5120-01-046-4979

Variable speed drill,

5130-00-889-8994

Dial indicator w/depth gauge

P/N 3376050 and ST-1325

Universal bushing set

P/N 3376495

Metric allen wrench set,

5120-01-087-8616

Materials/Parts

Loctite, Item 11, Appendix C

Solvent, Item 20, Appendix C

Detergent, Item 7, Appendix C

Lubricating oil, Item 14, Appendix C

Lint free cloth, Item 3, Appendix C

Headless straight pin P/N 3900068

Cam bearing P/N 3901306

Lube nozzle P/N 3901020

Preformed packing P/N 3906704

Coolant heater P/N 3330293

Liquid teflon sealant, Item 10, Appendix C

Fine grit flexi hone

INSPECTION

a. Inspect the cylinder bores for damage or excessive wear. Refer to FIGURE 4-79.

b. Measure the cylinder bores as shown in FIGURE 4-79 and 4-80.

Diameter:

Minimum 4.0157 inch (102.000mm)

Out-of-Roundness:

Maximum 4.0203 inch (102.116mm)

Taper:

0.003 inch (0.76mm)

c. Check the top surface for flatness between each cylinder (FICURE 4-81).

Variance Limit: 0.002,inch (O.050mm).

Change 1

4-57