TM 5-4320-302-14
6-20. CRANKSHAFT ASSEMBLY (CONT)
Location/Item
Action
Remarks
15. Camshaft bear-
Make sure bush is seated properly in crankcase.
ing bush
Inspect for damage or excessive wear. Measure
bearing bush bore with precision micrometer at
points 1 and 2 and along axis A and B.
16. Camshaft bear-
Bore measurements should be 1.8902 to 1.8923
ing bush bore
inches (48.01 to 48.064 mm). If measurement in
step 15 is outside these tolerance limits, replace
bearing bush.
17. Camshaft bear-
Measure camshaft bearing journal diameter and
ing journal and
determine radial clearance in accordance with
radial clearance
paragraph 6-19. If radial clearance is not within
tolerance limits, replace bearing bush or camshaft
to bring radial clearance within tolerance limits.
18. Main bearing
Drive out main bearing bush with main bearing
bush
mandrel No. 143700 and shaft from camshaft
bearing mandrel No. 143620.
6-171
