Kubota K008-3 Workshop Manual page 168

Note:From engine S/N WE 0364 and on, bearing case bolts / have two types, which are different part
number. Tightening torque is different as follows.
No.1 and 2 bearing case bolt 1 : Code No. 15841-04540, M6 × 1.0, 12.7 ~ 15.7 N·m(1.3~1.6kgf·m)9.4~11.6ft·lbs
No.3 bearing case bolt 1 : Code No. 01754-50840, M8 × 1.25, 7T, 23.5 ~ 27.5 N·m(2.4~2.8kgf·m)17.4~20.3ft·lbs
Main bearing case assembly
1. Remove the two bearing case screws 1 (4), and
remove the main bearing case assembly 1 (3),
being careful with the thrust bearing (2) and crank-
shaft bearing 2.
2.Remove the main bearing case assembies 2, 3.
(When reassembling)
• Clean the oil passage in the main bearing case.
• apply clean engine oil on the crankshaft bearing 2
and thrust bearings.
• Install the main bearing case assemblies n the orig-
inal positions. Since diameters of main bearing
case vary, install them in order of makings (1,2)
from the gear case side.
• When installing the main bearing case assemblies
2, 3, face the mark "FLYWHEEL" to the flywheel.
• Be sure to install the thrust bearing with its oil
groove facing outward.
Main bearing case assembli 2
Thrust bearing
Main bearing case assembli 1
Bearing case screw 1
III-S-7 S-81
Courtesy of Machine.Market