scores are too deep to be removed or if parts are badly
worn, replace parts.
(5) The clearance between new shafts and new
bearings is 0.0045 to 0.006 inch or a maximum of
0.008 inch with used parts. Excessive clearance
between the shafts and the bearings will cause low oil
pressure and excessive back lash between the gears.
Replace badly worn parts.
(6) Bearings are available in 0.010 and 0.020 inch
undersize for use with worn or reground camshafts.
(7) Oversize camshaft and balance shaft bearings
are available in sets, 0.010 inch oversize on the outside
diameter, for use with a cylinder block having one or
more scored block bearing bores.
(8) Remove end bearings if necessary as follows:
When removing camshaft bearings, note the
position of the bearings in the block bore with
respect to the notch in the bearing. Replace-
ment bearings must be installed in the same
End bearings must be removed before remov-
ing intermediate bearings.
(a) Insert small diameter of pilot (fig. 3-122)
into bore of an end bearing.
(3) Inspect both faces of each thrust washer. If
(b) Position the remover tool as shown in the
either face is scored or if the thrust washers are worn
excessively, replace the washers. New thrust washers
are 0.208 to 0.210 inch thick.
(4) Inspect the surfaces which the thrust washers
contact; if these surfaces are scratched but not severe-
ly scored, smooth them down with an oil stone. If the