Perkins 900 Series Workshop Manual page 98

5
To fit
Special requirements
Consumable products
Description
POWERPART Silicone sealing and
jointing compound
Warning! Use lift equipment or obtain assistance to lift heavy engine components such as the flywheel, the
flywheel housing and the crankshaft.
Caution: Some shell bearings do not have a hole in the bearing. These shell bearings must only be fitted in
the main bearing cap. If this type of shell bearing is fitted to the cylinder block, the bearing will not receive
lubricating oil and the bearing and the crankshaft journal will be damaged.
1 Ensure that all lubricating oil passages of the crankshaft are clean and free from restriction.
2 Clean the main bearing housings and the upper half of the bearings. Fit the shell bearings with the location
tags fitted correctly in their recesses. Lubricate the bearings with clean engine lubricating oil.
3 Ensure that the main journals of the crankshaft are clean. Put the crankshaft in position on the upper
bearings.
4 Clean and lubricate the upper thrust washers. Slide them into their recesses in the rear of the cylinder block.
The grooves in the thrust washers must be towards the crankshaft.
5 Renew the 'O' rings (B2) for the rear main bearing cap.
6 Clean the bearing caps and the lower half of the bearings. Fit the bearings to the caps with the location tags
fitted correctly in their recesses. Lubricate the bearings with clean engine lubricating oil.
7 Lightly apply Perkins POWERPART Silicone sealing and jointing compound to the mounting faces of the
rear main bearing cap (B3), outside the grooves (B1) in the faces. The sealant must not go into the grooves.
8 Clean the lower thrust washers and lubricate them with clean engine lubricating oil. Fit the thrust washers
on both sides of the rear bearing cap. The grooves in the thrust washers must be towards the crankshaft.
9 Check that the location thimbles for the main bearing caps are fitted correctly in the caps or in the cylinder
block.
10 Put the main bearing caps in their correct positions and ensure that the bottom thrust washers are correctly
fitted to the rear bearing cap. Each cap is stamped with a serial number. When the caps are fitted, the serial
numbers must be on the same side as the serial number stamped on the bottom face of the cylinder block (A2).
The second and the third main bearing caps are marked C2 and C3 respectively (A1).
1
2
A
88
This document has been printed from SPI². Not for Resale
Part number
1861108
3
B
C0067
Operation 5-11
1
2
Workshop Manual, TPD 1345E, issue 3
900 Series
C0064
Continued