TM 9-2320-363-34-2
PISTON AND CYLINDER ASSEMBLY REPLACEMENT (CONT)
5.
USING PISTON SECOND RING GROOVE GAGE (3), CHECK SECOND (MIDDLE)
RING GROOVE IN SAME WAY. IF SHOULDER A OR B OF GAGE (3) CONTACT
DISCARD DOME.
COMPRESSION
PISTON DOME,
6.
HOLD NEW OIL CONTROL RING (4) IN OIL CONTROL RING GROOVE SO NEW OIL CONTROL
RING (4) FACE IS FLUSH WITH EDGE OF PISTON DOME, DO NOT PUSH RING (4) TO BOTTOM
OF OIL CONTROL RING GROOVE. INSERT FEELER GAGE (5) BETWEEN TOP OF NEW OIL
CONTROL RING (4) AND RING LAND OF OIL CONTROL RING GROOVE IN PISTON DOME. IF
CLEARANCE IS GREATER THAN 0.004 IN. (0.11 mm), DISCARD DOME.
1.77 INCH (44.96 mm)
12-150