Main Bearing

1. Install main bearings as follows:

NOTE:
- Main bearings come in widths of 20.0 mm (0.787 inch) and 23.0 mm (0.906 inch). Install the 23.0 mm bearings in the No. 1 cylinder block journal position with the main bearing cap. Install the 20.0 mm bearings in the other positions.
- Upper bearings have an oil groove and oil holes, lower bearings do not.
- Apply a generous amount of oil on the sliding surface of the bearing and not on the back of it or on the surface to which it is installed.





(a) Align the bearing claw with the claw groove of the main bearing cap or cylinder block.

NOTE: Install the bearing with the oil hole in the cylinder block.





(b) Install the bearings in the cylinder block and main bearing caps.





2. Install the 2 thrust washers under the No. 4 main journal position of the cylinder block with the oil grooves facing outward.
3. Place crankshaft on cylinder block. Refer to Cylinder Block Assembly for removal and installation procedures.