Scania DC11 - Page 42

42
©
Scania CV AB 2011, Sweden
01:03-02
!
WARNING!
Wear protective goggles. Always turn
the cylinder head with the underside
face down while knocking out the valve
seat insert. Otherwise, there is a risk
that loose shivers of metal can cause
personal injury.
2 Press in new valve seat inserts. Use drift
99 384 and shank 99 385. Cool the drift and
valve seat to about -80°C with dry ice or
liquid air. Pressing must be carried out
rapidly.
!
WARNING!
Be careful when handling the cold parts
and refrigerants mentioned above. Risk
of frost injuries.
Oversize valve seat inserts can be fitted if the
valve seat insert position has been damaged. The
position must then be machined using tool
587 277.
99 384
99 385
146 597
Cylinder head
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