TM 9-2815-210-34-2-2
b .
Inspection and Repair.
FRAME 1
1.
2.
3.
Check that pistons (1) are not burned, scored, scuffed or have any broken
ring grooves, deep scratches or signs of metal pick-up. If any piston has
such damage, get a new one.
Check that spherical combustion chamber (2) of piston (1) is not burned or
distorted and does not have cracks that are more than 0.020 inch wide or
5/16 inch in length.
Fix minor damage with a fine mill file. If more repair
is needed, get a new piston.
Check that piston pin bore (3) measurement is between 1.6251 and 1.6263
inches. If piston pin bore is oversized, get a new piston.
GO TO FRAME 2
4-131