1.7.2 Camshaft and Bearings
DETROIT DIESEL 53
The end hearings must be removed prior to removing
the intermediate bearings.
CAUTION: When removing the bearings be sure
to note the position of the bearings in the bore
w i t h respect to the notch in the bearings.
Replacement bearings must be installed in the
I. Remove all accessories and assemblies with their
attaching parts as is necessary so that tool set J 7593-
02 may be used as shown in Fig. 3 and in A of Fig. 7.
Tool set J 7593-03, designed for use with standard size
bearings. may be used to remove and install ,010 "
undersize and 020 " undersize bearings by reducing
the pilot diameter of the pilot J 7593-2, installer
J 7593-3. remover J 7593-5. installer J 7593-6, and
installer J 7593-15. The pilot diameter of these tools
should be reduced by .020". This reduction in tool
diameter does not materially effect usage on standard
size bearings. If the tools are used frequently, however,
it may be advisable to purchase additional standard
pieces. Reduced diameter tools have not been released.
2. Insert the small diameter end of the pilot J 7593-2
into the end bearing.
3. Then, with the unthreaded end of the shaft J 7593-1
started through the pilot. push the shaft through the
block bore until the end of the shaft snaps into the
remover J 7593-5.
4. Now drive the end bearing out of the cylinder
block. The nearest intermediate and/or center
bearings can be removed now in the same manner.
The large diameter end of pilot J 7593-2 will fit into
Fig. 6. Location of Notch in Relation to Shaft
Fig. 5 Camshaft and Balance Shaft Bearing