PISTONS, CONNECTING RODS, AND RELATED PARTS.

TM 9-2815-210-34-2-2

4-7. PISTONS, CONNECTING RODS, AND RELATED PARTS.

a. Cleaning.

WARNING

Use goggles, rubber gloves, and rubber apron

w h e n cleaning parts in carbon removing com-

pound. Make sure there is enough ventilation.

Be careful not to breathe in fumes or let com-

p o u n d touch skin. I f compound is splashed

o n skin, flush with water and wash with

a l c o h o l , preferably 2 to 3 percent.

FRAME 1

Clean pistons (1), rings (2), piston pins (3), and retaining rings (4) by

s o a k i n g in carbon removing compound.

Clean piston ring grooves (5) with stiff bristle brush or fiber scraper. Do not

s c r a t c h or gouge ring grooves.

C l e a n oil holes in lower ring groove of piston (1) with No. 23 (0.154-inch) drill

GO TO FRAME 2