B3.9 and B5.9 Series Engines
Section 1 - Cylinder Block - Group 01
Install lubricating oil pan and gasket. Refer to Procedure
Install the cylinder head. Refer to Procedure 002-004.
Fill the lubricating oil pan. Refer to the Operation and
Maintenance Manual, B Series Engines, Bulletin No.
3810205 for the correct lubrication oil specification.
Fill the cooling system. Refer to Procedure 008-018.
Operate the engine to normal operating temperature, and
check for leaks.
The crankshaft is a balanced, forged-steel unit. Four-
cylinder engines have five main bearings. Six-cylinder en-
gines have seven main bearings. The lower bearing shells
are all the same. All of the upper bearing shells are also the
same with the exception of the journal adjacent to the rear
one. The next to last journal is fitted with a flanged upper
bearing shell. The flanges control the end thrust of the