Main Bearings; Operation 5-12 To Remove (With The Crankshaft In Position) - Perkins New 1000 Series Workshop Manual

5

Main bearings

To remove (with the crankshaft in position)
Notes:
l 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.
l 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.
1 Drain the lubricating oil and remove the sump, see Operation 10-3.
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 (A1), push the upper half of the shell bearing from the side opposite to the location tag
(A2) to remove the bearing tag from its recess (A3) in the bearing housing. Carefully rotate the crankshaft to
release the bearing from its housing. Keep the bearing halves in their relevant positions.
1
2
3
A
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This document has been printed from SPI². Not for Resale
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Workshop Manual, TPD 1350E, Issue 4
New 1000 Series
Operation 5-12