FITTING NEW PISTON RINGS.

Figure 5-58. Filing Ring Gap

Figure 5-60. Connecting Rod Bushing Removal

d. Measure the gap between the ends of the ring

with a feeler gauge. If the rings must be filed to

allow the gauge to fit, see step e.

e. Place a medium to fine toothed file in a vise as

shown in figure 5-58. Grip the piston ring with

both hands as shown and apply even pressure to

both sides of the piston ring and file both ends of

the ring evenly by moving ring back and forth over

the file.

f. Check ring gap frequently as outlined in steps

b, c, and d, during the filing operation to avoid

removal of too much material.

g. Refer to figure 5-59 and check the ring side

Figure 5-59. Checking Ring Side Clearance

clearance of the compression rings with a feeler

gauge inserted between the ring and its lowest land.

The gauge should slide freely around the entire ring

5-43. FITTING NEW PISTON RINGS.

circumference without binding. Any wear that

occurs will form a step at the inner portion of the

a. Select the proper ring set (standard, oversize,

lower land. If the lower lands have high steps, the

etc.).

piston should be replaced.

b. Position the ring in the cylinder bore in which

it is going to be used.

Note

c. Use the head of a piston to position the ring in

When piston rings are installed, the ring

the cylinder bore, at bottom of piston travel.

gaps must be staggered and not in line with

Measure the gap as shown in figure 5-57.

each other.

5-37