Perkins Phaser Series - Main Bearings; To Remove and to Fit; To Remove and to Fit (with the Crankshaft in Position)

14 CRANKSHAFT ASSEMBLY
Main bearings
To remove and to fit (with the crankshaft
in position)14A-06
If the rear main bearing is to be removed with the
crankshaft in position, the flywheel, the flywheel
housing, the rear oil seal housing and the bridge
piece will have to be removed.
Except for engines with a balancer unit fitted, the
front main bearing can only be removed if a suitable
spanner is available that will enable the torque to be
applied correctly to the setscrews of the main
bearing cap. If a suitable spanner is available, the
front main bearing cap can be removed together
with the oil pump. For six cylinder engines, it will be
necessary to remove the suction pipe and strainer
and the delivery pipe. For four cylinder engines,
either the balancer unit or the suction pipe and
strainer, the delivery pipe and the relief valve will
have to be removed.
To remove
1 Drain the lubricating oil and remove the sump,
operation 19A-03.
2 Remove all necessary components to get access
to the specific bearing cap.
3 Release the setscrews of the bearing cap and
remove the bearing cap. Remove the lower half of
the shell bearing from the cap.
4 With a suitable tool, push the upper half of the
shell bearing from the side opposite to the location
tag to remove the bearing tag from its recess in the
bearing housing. Carefully rotate the crankshaft to
release the bearing from its housing. Keep the
bearing halves in their relevant positions.
14A.16 Perkins Phaser/1000 Series, April 1995