Perkins 1103 Disassembly And Assembly page 120

120
Disassembly and Assembly Section
NOTICE
Do not allow the connecting rods to strike the piston
cooling jets. Damage or misalignment may occur.
5. Push the piston assemblies into the cylinder bores.
Note: This procedure assumes that the engine has
been removed from the application and that the
engine has been inverted. If the engine has not
been inverted, ensure that the crankshaft is fully
supported before removing the setscrews (3) for
the main bearing caps (4).
6. Remove the setscrews (3) from the main bearing
caps (4).
Illustration 268
7. Remove the main bearing caps (4) from the
cylinder block. Remove the bearing shells (8) from
the main bearing caps (4). Keep the main bearing
shells (8) with the respective main bearing cap (4).
8. Attach lifting straps and a suitable lifting device
to the crankshaft. Lift the crankshaft out of the
cylinder block. Take care to ensure that you do
not scratch any of the finished surfaces on the
crankshaft.
Illustration 269
9. Remove the upper main bearing shells (7). Keep
the upper main bearing shells with the respective
main bearing caps (4).
Note: Thrust washers (9) and (10) are installed onto
one main bearing in order to limit crankshaft end
play. These thrust washers are installed onto the No.
3 main bearing of the three cylinder and the center
main bearing of the four cylinder engine. The removal
procedure is identical for the three cylinder and the
four cylinder engines. The appropriate illustrations
show the four cylinder engine.
Illustration 270
Typical example
10. Remove the upper thrust washers (9) from the
appropriate main bearing block.
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Illustration 271
Typical example
11. Remove the lower thrust washers (10) from the
appropriate main bearing cap.
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