Assembly. - TM-9-2815-224-34-P0177

TM 9-2815-224-34&P

Piston and Connecting Rod Maintenance Instructions (Cont)

c. Assembly.

NOTE

Be sure to aline all match marks.

(1) Place piston crown (l), top end down, on work

bench.

(2) Install piston pin bearing (2).

(3) Coat metal seal ring (3) with lubricating oil.

(4) Install metal seal ring (3) on piston crown (1).

Beveled side must face toward bottom of piston

crown (l).

(5) Rotate metal seal ring (3) fully around piston

crown (1) and be sure it turns freely with no

sticking or binding.

(6) Compress metal seal ring (3) and push piston

skirt (4) down into position on piston crown (1).

(7) Hold piston crown (1) and spin piston skirt (4).

Piston skirt (4) must turn freely with no binding.

TA357438

(8) Coat piston pin (5) with lubricating oil.

(9) Line up hole in piston skirt (4) with hole in piston crown (l).

(10) Install piston pin (5) with threaded holes toward bottom of piston skirt (4).

NOTE

Retainers must be seated fully and evenly in piston skirt.

(11) Install piston pin retainers (6) in piston skirt (4) at each side of piston pin (5) using piston pin

retainer tool; install until they bottom out.

(12) Using leak detector, apply 10-in. (254 mm) of vacuum to each piston pin retainer (6). There

should be no loss of pressure.

(13) Install two spacers (7) on two screws (8).

WARNING

Adhesives, solvents, and sealing compounds

can burn easily, can give off harmful vapors,

and are harmful to skin and clothing. To

avoid injury or death, keep away from open

fire and use in well-ventilated area. If

adhesive, solvent, or sealing compound gets

on skin or clothing, wash immediately with

soap and water.

(14) Apply small amount of international No. 2

TA357439

compound to threads and head contact

surface of two screws (8).

(15) Insert connecting rod (9) into piston skirt (4).

(16) Install screws (8) and tighten finger tight.

(17) Clamp connecting rod (9) in vise with soft jaws.

(18) Tighten screws (8) to 55 to 60 lb-ft (75 to 81 Nm).

6-11