Mercedes-Benz 201.024 Service Manual page 138

Notes
Engine removed and disassembled.
Main oil passage in crankcase open (01-130).
Oil passages in crankcase and in crankshaft
carefully cleaned.
Crankshaft checked for cracks, hardness,
dimensional tolerance and concentricity (03-318).
Normal bearing shells and
installed on the 3rd crankshaft bearing (thrust
bearing).
The thrust washers absorb the axial forces of the
crankshaft.
The thrust washers (23 and 23a) inserted in the
crankcase and in the bearing cover on both
sides are each identical.
The thrust washers each have two retaining lugs
in the bearing cover as an anti-twist lock and to
avoid assembly errors, the bottom lugs being
fitted off-center. In addition, all the thrust
washers are chamfered at one end.
When repairing crankshafts, the thrust bearing
journals must be reground in the width to one of
the dimensions stated in the table (Section
" Data" ).
1 Crankshaft
2 Bearing cover
12
3 x 60 bolts (1 St versm)
3a Ml 1 x 62 collar bolts (2nd version)
4b Washer
23 Thrust washer in crankcase
23a Thrust washer in bearing cover
24 Bearing shell in crankcase
24a Bearing shell in
03.0905 - 32Oi5
thrust washers
are
beating cover
23
24
24a
EXIT
23
1
23a