Mercedes-Benz 603 Service Manual page 179

The thrust washers (148 and 148a) installed in
the crankcase and in the bearing caps have a
different shape.
The thrust washers in the crankshaft bearing
caps each have two retaining lugs to prevent
rotation and installation errors, whereby the lower
retaining lugs are off-center.
When reconditioning crankshafts, regrind width-
of fitted bearing journals to one of the
dimensions shown in the table (section " Data" ).
Match thrust washers to respective journal width
(table).
Thrust washers of the same thickness must
always be installed on both sides.
Do not regrind thrus? washers.
Thrust washers are available for replacement in
sets only. One set consists of one upper and
one lower thrust washer (148 and 148a).
03.10
Bearing cap
4
Crankshaft bearing
4a Crankshaft bearmg
11 x
bolt M 62
Washer
4b
145
Crankshaft
148 Upper thrustwasher
48a Lower thrust washer
146
148
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EXIT