Isuzu NHR 4J Series Workshop Manual page 226

• Install the bearing caps with the bearing cap head
arrow mark facing the front of the engine.
• Apply engine oil to the front of the engine.
• Tighten the crankshaft bearing cap bolts to the
specified torque a little at a time in the sequence
shown in the illustration.
NOTE:
6A1-91-1.tif
Check to see that the crankshaft turns smoothly by
rotating it manually.
13. Crankshaft Rear Oil Seal
Use the oil seal installer to install the oil seal to the cylinder
body.
Rear Oil Seal Installer: 5-8840-2361-0
NOTE:
Wipe off rust and scraps clean from the press-in
portion of the oil seal.
Take note of the press-in direction of the oil seal.
1) Install the adapter of the special tool to the rear end of
the crankshaft with two bolts.
6A1-91-2.tif
2) Install the oil seal to the outer circumference of the
adapter.
3) Insert the slave into the adapter portion, and tighten it
in with the bolt (M12x1.75L=70) until the adapter
section hits the slave.
4) Remove the adapter and the slave.
5) After installing the oil seal, check the measurement of
the oil seal.
Standard
12. Flywheel and Cylinder Body Rear Plate
• Align the rear plate with the cylinder body knock pins.
• Tighten the rear plate to the specified torque.
Rear Plate Bolts Torque
6A1-92-3.tif
4JB1/4JB1T/4JB1TC/4JG2 – ENGINE 6A1 – 91
167 (17.0/123)
12.2 - 12.8 (0.48 - 0.50)
82 (8.4/61)
N∙m (kg∙m/lb∙ft)
mm (in)
N∙m (kg∙m/lb∙ft)