Main Bearings
Maintenance / Reassembly
A5.05. 02.05.02.00
M20
en / 30.11.1999 IB001361 2/4
02
Ĺ
1.1 Lubricate working face of the top
bearing shell well, wipe bearing back
dry and press bearing shell into the
bearing so far that the dog (Fig. 1/W7)
can be inserted into the oil bore of the
crankshaft.
1.2 Twist in top bearing shell. Thereby,
maintain central position of the bearing
shell. The fixing lug must slide into the
guide groove of the bearing seat.
1.3 Lubricate working face of the lower
bearing shell, wipe bearing back dry
and insert into bearing cap.
Attention:
The bearing guide groove for the lower
shell is on the camshaft side. Observe
fixing pin on the exhaust gas side in the
case of locating bearing cap.
2. Tightening of the bearing shells.
2.1 Lift the bearing cap with the aid of the
lowering device (Fig. 2/W6) over the
bearing bolts and screw round nuts (1)
uniformly on bearing bolts and tighten
hand-tight with pin (W5). Remove
lowering device (W6).
Note:
During the installation of new bearing
shells, the clearance “K” and in the
case of locating bearings, the axial play
(02.05.01.nn) is to be measured.
Fig. 1
W7
W6
1
Fig. 2
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