Pistons and Connecting Rods - TM-10-3930-638-24-P0819

TM 10-3930-638-24&P

4-2. ENGINE MAINTENANCE (cont)

f. Pistons and Connecting Rods.

This task covers repair and replacement of pistons and connecting rods consisting of:

d. Inspection

a. Removal

e. Reassembly

b. Disassembly

f. Installation

c. Cleaning

INITIAL SETUP

EQUIPMENT CONDITION

TOOLS

Condition Description

Paragraph

Piston Ring Expander

Oil pan removed.

3-5k

NSN 5120-00-221-1999

Thickness Gage

Cylinder head assembly removed.

3-5g

Plastic Scraper

Wood Dowel, 1 inch diameter

Reamer

Bore Gage, zero to 5 inches

Micrometer, zero to 5 inches

Piston Ring Compressor

Plasti Gage

NSN 4910-00-754-0654

No. 1 Common Organiza-

tional Maintenance Tool Kit

Sleeve, 1-5/16 inches diameter

Groove Cleaning Tool

MATERIALS/PARTS

Capscrew, 1/2-13 UNC,

FSCM 10988 P/N 13-820

grade 5, 1-1/4 inches long

Flat washer, 9/16 inch ID,

FSCM 10988 P/N 95-8

1-3/8 inches OD, 7/64 inch thick

Cleaning solvent P-D-680

Clean cloths

Oil, No. 30

Piston rings

KEY

1. Connecting rod nuts

2. Connecting rod cap

3. Connecting rod

4. Piston

5. Top piston ring

6. Second piston ring

7. Piston oil ring

8. Retaining rings

9. Piston pin

10. Piston pin bushing

11. Screws

12. Bearing liners

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