TM-9-2815-220-24

AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TM-9-2815-220-24 - Page 1210 of 1563

TM 9-2815-220-24

PISTONS, RINGS, AND ASSOCIATED PARTS REPLACE/REPAIR

0142 00

ASSEMBLY (Continued)

3. Measure ring "side" clearance.

a. Measure side clearance (A, B, C) of the

bottom three rings.

A

B

C

b. Replace rings that do not meet the

specifications below.

Location

Sizes and Fits of New Parts

inches (mm)

Wear Limits

A

(Second ring groove)

0.0055L (0.1397L)

0.0075L (0.1905L)

0.0110 (0.2794)

B

(Third ring groove)

0.0045L (0.1143L)

0.0065L (0.1651L)

0.0100 (0.2794)

C

(Fourth ring groove)

0.0015L (0.0381L)

0.0035L (0.0889L)

0.0055L (0.1397L)

NOTE

Piston pin retaining rings need not

be installed until the piston and

cylinder are installed on the

engine.

4

7

4. Install piston pin (7) in bore of piston (4).

END OF WORK PACKAGE

WP 0142 00-12