B3.9 and B5.9 Series Engines
Section 1 - Cylinder Block - Group 01
Improper maintenance of the lubricating system is the pri-
mary cause of reduced main bearing life.
Increased end-loading of the engine and its driven units
at the front or rear of the engine can cause damage to
To avoid personal injury, avoid direct contact of hot oil
with your skin.
Drain the lubricating oil. Refer to Procedure 007-025.
Remove the lubricating oil pan and gasket. Refer to Pro-
NOTE: Before removing the main bearing caps, make cer-
tain that the caps are clearly marked for their location on
the lubricating oil cooler side of the main bearing cap.
NOTE: Before removing the main bearing caps, make sure
that the caps are clearly marked for location on the lubri-
cating oil cooler side of the main bearing cap.