FIGURE 4-47. Checking Piston Ring Cap.

TM 55-1905-223-24-4

(1)

Position each ring in the cylinder and use a piston to square it with the bore as shown in FIGURE 4-47.

A = 3.5 inches (89 mm)

(2)

Use a feeler gauge to measure the gap as shown in FIGURE 4-48.

RING GAP

Top:

Minimum 0.0160 inch (0.40 mm)

Maximum 0.0275 inch (0.70 mm)

Intermediate:

Minimum 0.0100 inch (0.25 mm)

Maximum 0.0215 inch (0.55 m m)

Oil Control:

Minimum 0.100 inch (0.25 mm)

Maximum 0.215 inch (0.55 mm)

FIGURE 4-48. Measuring Piston Ring Gap.

4-37