Mitsubishi 4G1 Service Manual page 506

Cylinder
block
LEFT SILENT SHAFT REAR BEARING
INSTALLATION
(1) Install the special tool (GUIDE PLATE) tool to the cylinder
block.
(2) Apply engine oil to the rear bearing outer circumference and
bearing hole in cylinder block.
(3) Using the special tool, install the rear bearing.
NOTE
The left rear bearing has no oil holes.
SILENT SHAFT FRONT BEARING INSTALLATION
(1) Using special tools, install front bearing.
FRONT CASE INSTALLATION
(1) Set the special tool on the front end of crankshaft and apply
a thin coat of engine oil to the outer circumference of the
special tool to install the front case.