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 TM 55-1905-223-24-3
CAUTION
The oil grooves on the thrust bearing must be toward the camshaft gear to
prevent bearing failure.
b.
Install the thrust bearing on the camshaft.
c. Install four camshaft pilots over the outer base circle of the valve lobes between the camshaft journals
d. Use a rubber band to. hold the installation pilots in place. The rubber band must straddle the valve
lobes (Figure 3-52).
e. Apply a film of Lubriplate 105 or its equivalent to the camshaft journals and the camshaft bushings in
the block.
f.
Rotate the camshaft slowly as it is being installed in the cylinder block.
g.
Align the "0" mark on the camshaft gear with the "0" mark on the crankshaft gear (Figure 3-54).
FIGURE 3-54. Gear Alignment.
h. After aligning the "0" marks, push the camshaft in the bore until the thrust bearing fits against the
cylinder block.
CAUTION
Do not allow the rubber bands to fall into the camshaft cavity of the cylinder block when
removing the installation pilots.
i.
Remove the camshaft installation pilots.
3-102
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