4 Rod cap (6 rqr)
5 Bearing shell (12 rqr)
6 Top ring (6 rqr)
7 Compression ring. (12 rqr)
8 Oil ring (6 rqr)
9 Retainer (12 rqr)
10 Piston pin (6 rqr)
11 Piston (6 rqr)
12 Bushing (6 rqr)
13 Connecting rod (6 rqr)
Figure 23. -Continued.
120.
Crane Engine Camshaft Assembly Cleaning
and Inspection
a. Clean all parts with an approved cleaning
solvent and dry thoroughly.
b. Inspect the camshaft bearing journal for
diameter of 2.242 inch minimum to 2.243 inch
maximum.
c. Inspect the cam lift clearance, the intake should
be 0.3395 inch, and the exhaust 0.352 inch.
d. Inspect the camshaft end play for a clearance of
0.005 inch minimum to 0.009 inch maximum.
e. Inspect the camshaft bushings for tolerance of
2.2445 inch minimum and 2.2450 inch maximum.
Inspect the bushing clearance for '.0015 inch minimum
and 0.0030 inch maximum, with an allowable wear of
0.005 inch.
f. Inspect the tappet hole for a diameter of 1.125
inch minimum to 1.126 inch maximum diameter.
g. Inspect the tappet hole clearance for 0.0005
inch minimum to 0.002 inch maximum.
h. Replace all damaged or defective parts.
121.
Crane Engine Camshaft Assembly Installation
a. Install the camshaft assembly as illustrated on
Figure 23. Crane engine piston and connecting rod
assembly, exploded view.
1 Pin, cotter, 3/32 x 3/4 in. (12 rqr)
2 Nut, 1/2-20 (12 rqr)
3 Bolt, special (12 rqr)
TAGO 5030A
62
