TM 5-4320-300-14
6-9. VALVES, CAMSHAFT, AND TIMING GEARS (CONT)
Location/Item
Action
Remarks
NOTE
Bearings are available in 0.010 and 0.020 inch (0.254 and 0.508 mm) under-
size for use with worn or reground shafts. Oversize camshaft and balance
shaft bearings are available in sets, 0.010 inch (0.254 mm) oversize on the
outside diameter, to permit reuse of a cylinder block having one or more
scored block bearing bores. To use oversize bearings, camshaft and balance
shaft block bores must be carefully line bored (machined) to dimensions
shown in the chart below.
Bearing Location
Minimum
Maximum
inch
(mm)
inch
(mm)
End
2.385
(60.579)
2.386
(60.604)
Intermediate
2.375
(60.325)
2.376
(60.350)
47. Camshaft and
Position and install end bearings correctly
New end bearings for
balance shaft
with groove in camshaft and balance shaft
both shafts are color
end bearings
bores.
coded brown.
48. Crankshaft
Start crankshaft gear over end of crankshaft
gear
with timing marks on outer rim of gear facing
out. Align the proper timing mark on crank-
shaft gear with corresponding mark on idler
gear. Drive gear up against the shoulder on
crankshaft.
6-72
