Service procedures - engine Group 21
66
Main bearings, all, replacing
Special tools: 999 3590
1
Remove the pan.
2
Remove the Plug from the flywheel casing. Fit tool 999 3590.
3
6
Remove the upper bearing shells by inserting a pin into the
oil hole of the crankshaft.
7
Turn the crankshaft so that the pin carries the upper bearing
shell with it.
8
Use a narrow piece of plastic or wood to remove the axial
bearing.
9
Clean the parts and check them for wear.
10
Make sure that the correct size of bearing is being fitted.
11
Oil the shaft journals and the new bearing shells.
12
The upper bearing shells are slid into position by turning the
crankshaft against the engine’s direction of rotation.
13
Fit the bearing caps together with the reinforcing plates.
14
Remove the oil pump and the oil delivery pipe.
4
Remove all bolts and spacers holding the bearing cap re-
inforcing plates.
5
Remove the bearing caps, one at a time.
Torque the bearing caps to 440 Nm (324.5 ft-lb).
Fit the spacers and torque the reinforcing plates to 85 Nm
(62.7 ft-lb).
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