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 TM 55-1905-223-24-5
3-24. Replace Camshaft Group
This task covers:
a. Removal
b. Replacement
INITIAL SETUP:
Tools
Equipment Condition
Tool kit, general mechanic's,
Accessory drive pulley removed
rail and marine diesel engines,
Cam followers removed (para. 3-18).
Camshaft installation pilots
Gear cover assembly removed
P/N 3375268
Main bearing cap puller
P/N ST-1178
Bushing, Inserter
P/N 3376637
Bushing driver kit P/N 3376633
Dial indicator, 5210-00-277-8840
Materials/Parts
Lubriplate 105 or equivalent, Item 11, Appendix C
Rubber bands, Item 29, Appendix C
New camshaft P/N 3049024
REMOVAL
a.
Install four camshaft pilots (1, FIGURE 3-69) over the outer base circle of the valve lobes between the
camshaft journals (FIGURE 3-69).
b.
Use a rubber band (3) to hold the installation pilots (1) in place. The rubber band must straddle the
valve lobe (FIGURE 3-69).
c.
Use one hand to slowly rotate and pull the camshaft (2) from the cylinder block and the other hand to
balance the camshaft (2) as it is removed.
d.
Remove the camshaft thrust bearing (4, FIGURE 3-70) from the camshaft.
REPLACEMENT
a.
Apply a film of Lubriplate 105 or its equivalent to both sides of the camshaft thrust bearing (4, FIGURE
Change 1 3-109
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