Intake valves and exhaust valves
| Intake valves and exhaust valves | 
| To remove | 
| 1. | Remove the
        
         cylinder head
        
        . | |
| 2. | Remove the exhaust manifold (A).   | |
| 3. | Remove the vacuum pump (B). | |
| 4. | Remove the ventilation pipe (A).   | |
| 5. | Remove the fuel rail (B). | |
| 6. | Remove the bracket (C).   | |
| 7. | Remove the control module (D). | |
| 8. | Remove the throttle body (E). | |
| 9. | Remove the intake manifold (A).   | |
| 10. | Slacken the camshaft bearing caps evenly in the indicated order. Carefully detach the camshaft guide bearings with a rubber mallet.   | |
| 11. | Note the bearing cap designations (A) | |
| 12. | Lift away the camshafts. | |
| 13. | Remove the roller rockers (A). Store them in
        
         83 93 787 Valve stand
        
        so they do not get mixed up.   | |
| 14. | Compress the valve spring with
        
         83 96 384 Valve spring tool
        
        (A) and remove the valve cone (B), spring plate (C) and valve spring (D).   | |
| 15. | Remove the valve guide seal (E) using
        
         83 94 157 Pliers, valve guide seal
        
        (F).   | |
| 16. | Remove the valve (G). | |
| To fit | 
| 1. | Fit the valve (G). | |
| 2. | Fit a valve guide seal (E) using
        
         83 94 157 Pliers, valve guide seal
        
        (F). | |
| 3. | Fit the valve spring (D) and valve head (C). Compress the valve spring using
        
         83 96 384 Valve spring tool
        
        and fit the valve cone (B).   | |
| 4. | Fit the roller rockers (A).   | |
| 5. | Lift in the camshafts. | |
| 6. | Note the bearing cap designations (A).   | |
| 7. | Tighten the camshaft bearing caps in the specified order. | |
| 8. | Fit the intake manifold (A).   | |
| 9. | Fit the throttle body (E).   | |
| 10. | Fit the control module (D). | |
| 11. | Fit the bracket (C). | |
| 12. | Fit the fuel rail (B).   | |
| 13. | Fit the ventilation pipe (A). | |
| 14. | Fit the vacuum pump (B).   | |
| 15. | Fit the exhaust manifold (A). | |
| 16. | Fit the
        
         Cylinder head
        
        . | |

 
		