Mercedes-Benz 603 Service Manual page 272

Data
Overlap of valve seat inserts
in cylinder head
D
(New value)
A (Thrs dimension is valid up to the upper
edge of cylinder head on reworked
cylinder head parting surface)
a
Note
Exhaust valve seat inserts are made from
centrifugally cast material on the naturally-
aspirated engines, and srntered metal on turbo
engines.
The intake valve seat inserts are made from
sintered metal on all engines.
0 5 1 0 - 2 9 0 2
Intake Exhaust
33.400 30.400
33.600 30.600
133.4 133.4
37" 30' 37" 30'
EXIT