Figure 6-31. Connecting rod and bearing identification marks.

b. Crankshaft Oil Seal. R e m o v e

crankshaft

oil seal following instructions which accompany

figure 6-32.

Note. For

location

identification

connecting

Remove

rods and caps are stamped with a location

1. Separate the retaining spring (A) from spring

number on the side of one of the bosses. For

retaining lip of the oil seal.

2. Disengage the ends of the spring I(B) at its parting line

example,

"1R"

would

identify

connecting

rod

with half turn as shown.

and cap for No. 1 cylinder on the right bank.

3. Separate seal (C) at split line and remove from the

Bearings are also marked to indicate their

crankshaft. Discard seal and spring.

locations; for example, t h e c o n n e c t i n g r o d

Install

bearing half for cylinder "1R" is marked "1RR"

1. Apply a light coating of automotive and artillery

grease (GAA), FSN 9150-190-0905, to new crankshaft

and the bearing cap half for the same cylinder is

oil seal (C). Install oil seal on crankshaft with closed, or

m a r k e d "1RC". If the connecting rod, cap, or

flat, side toward flywheel flange.

bearing

obliterated,

markings are

restamp

2. Place a new seal spring (A) around crankshaft as

connecting rods, caps, or bearings, so that they

shown. Turn one end of spring one half turn clockwise

and the other end one half turn counterclockwise. Insert

can be installed in their original positions. In

male end into female end and release spring ends.

addition, the connecting rod and cap, which are

Spring ends must be properly engaged.

a matched assembly, are marked with iden-

3. Insert the spring in the retaining groove in the oil seal.

tifying serial numbers. These identifying serial

Figure 6-32. Removing or installing

numbers are located on the side opposite the

crankshaft

oil

seal.

cylinder location numbers. The rod and cap

must be kept as a matched assembly, as parts are

not

interchangeable.

Figure 6-31. Connecting rod and bearing

identification marks.

6-35