Remove the old valve seat ring from the cylinder head by
turning out with the `Hunger` valve machining tool or similar.

When installing: Open out before A in the cylinder head
to the correct oversize¹.




Siehe auch ¹ See technical data
12621001 - click to zoom
 
To install the valve seat ring B of the correct oversize,
heat the cylinder head ¹ and cool the valve seat ring with
dry ice¹.



Siehe auch ¹ See technical data
12621002 - click to zoom