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Cylinder Head Disassemble

Cylinder Head Disassemble



Special Tools

• EN-849 Assembly Tray

• EN-6167 Fixing Tool

• EN-6171 Release Tool

• EN-6215 Mounting Equipment

• EN-840 Remover


For equivalent regional tools, refer to Special Tools .



1.
Note

Check the appropriate screwing points for the EN-6215-5 side mounts.


Fit the EN-6215-5 side mounts (1) for the EN-6215-4 assembly fixture.


2. Install EN-6215-4 assembly device (1).


3. The spark plug threads must be cleaned of combustion residues to ensure that the counterhold can be attached correctly. Insert tap M14 x 1.25 (1) in the spark plug thread and screw in evenly.


4. Turn the cylinder head baseplate.

5.
Note

There are 2 kinds of counter holder. Type A and Type B. Choose the correct type for the existing combustion chamber.


Install the counter holder.

6.
Note

Depending upon the combustion chamber organization, it must be used different holders to protect the valves.


Counter holder type A (1).


7.
Note

Depending upon the combustion chamber organization, it must be used different holders to protect the valves.


Counter holder type B (1).


8. Install the EN-6167 fixing tool (1). Attach the EN-6215-3 mounting equipment (3) with safety lock pins. Install the fixing bolts (2). Turn the cylinder head baseplate again.


9. To ensure that no special tools are damaged during the disassembly of the valve wedges, the valve retainers are to be released with the EN-6171 release tool (1). Put the EN-6171 release tool on the valve retainers and with a short impact of a rubber hammer all valve retainers will loose (setting behavior).


10.
Note

The valve-spring depressing tool (1) must be positioned parallel onto the valve spring cap to ensure that neither tools nor components are damaged. Select the appropriate bore in the lever for this purpose. If the valve-spring compressor cannot be positioned parallel, the lever must be adjusted accordingly.


Push the depressing tool (1) down with lever until the valve spring cap is released. Remove valve cotters.


11. Remove the upper valve spring caps and valve springs and place them in order on the EN-849 assembly tray.

Release the valve stem sealings by turning with EN-840 remover (1) and remove from the valve guides.


12. Remove the lower valve spring caps or valve rotators from the cylinder head and also place on the EN-849 valve box (1).


13. Remove lever tool.

14. Turn the cylinder head baseplate. Remove wooden board EN-6215 mounting equipment and counter holder if attached.

15. Remove all valves in sequence and place on EN-849 assembly tray (1) in order.