| 1. Remove a weight wire from the accumulator. |
| 2. Merge cooling liquid from the cooling system. |
| 3. Disconnect a reception exhaust pipe from a final collector. |
| 4. The head of the block of cylinders can be removed from the engine together with collectors, or collectors can be disconnected from a head of the block of cylinders before its removal. In case on an inlet collector no works are performed, it can be unscrewed from a head of the block of cylinders and to record, at the same time it is not required to disconnect the corresponding hoses, pipes and electric sockets. |
| 5. If the head of the block of cylinders is removed together with collectors, disconnect all hoses, pipes and electric sockets from an inlet collector. On models with the carburetor disconnect a branch pipe from a zabornik of the warmed-up air about an inlet collector. Weaken bolts of fastening of the generator, then unscrew the top fastening of the generator from an inlet collector. |
| 6. Disconnect a branch pipe of the air filter from the heater block on the carburetor or the case of a throttle or from the case of a throttle. Then disconnect the hose of ventilation of a case going to the carburetor or the case of a throttle from a cover of a head of the block of cylinders (see rice. A detachment of a hose of ventilation of a case from a cover of a head of the block of cylinders on the engine of 2,0 l). |
| 7. On the C16 NZ2 1,8 and 2,0 models of l disconnect thinner hose of cooling liquid from the top part of a casing of the thermostat. |
| 8. On models of 1,6 l except the C16 NZ2 models disconnect the hose of ventilation of a case going to an inlet collector from a cover of a head of the block of cylinders. |
| 9. On models with system of injection of fuel unscrew two tires of grounding from the camshaft case (see rice. Unscrewing of the tire of grounding from the camshaft case on models with system of injection of fuel on the engine of 2,0 l). |
| 10. On l models 1,4 and 1,6 except the C16 NZ2 models disconnect the hose connecting a pipe of ventilation of a case to a back part of the case of the camshaft (see rice. A detachment of a hose of ventilation of a case on the engine of 1,6 l). |
| 11. Check that all hoses, pipes and electric sockets are disconnected from an inlet collector, then remove an inlet collector from a head of the block of cylinders. |
| 12. Remove laying of an inlet collector from a head of the block of cylinders. |
| 13. If necessary remove a final collector from a head of the block of cylinders. |
| 14. Take off a gear belt and a pulley of the camshaft. |
| 15. Unscrew two bolts fixing a back casing of a gear belt to the camshaft case. |
| 16. Mark and remove high-voltage wires from candles and the coil of ignition. Uncover the distributor of ignition and, in the presence, disconnect the electric socket from the distributor. |
| 17. Remove a hose of ventilation of a case from a branch pipe on the camshaft case (see rice. A detachment of a hose of ventilation of a case on the engine of 2,0 l). |
| 18. Unscrew a bolt, the fixing arm of fastening of a pipe of ventilation of a case to an end face of a head of the block of cylinders (see rice. Unscrewing of an arm of support of a pipe of ventilation of a case from a head of the block of cylinders on the engine of 2,0 l). |
| 19. Disconnect hoses of supply of cooling liquid from a thermostat casing. |
| 20. On models with carburetors disconnect fuel hoses from the fuel pump and close them traffic jams. |
| 21. Check that all hoses, pipes and wires are disconnected from a head of the block of cylinders. |
| 22. Unscrew bolts of fastening of a head of the block of cylinders, working on a spiral outside inside, unscrewing bolts on a half of a turn for each pass before full unscrewing of bolts (see rice. The sequence of unscrewing of bolts of fastening of a head of the block of cylinders on the SOHC engine). |
| 23. Remove the camshaft case from a head of the block of cylinders (see rice. Removal of the case of the camshaft from a head of the block of cylinders on the engine of 1,6 l). |
| 24. Remove yokes, blocks of axial pressure and hydraulic pushers and place them in the corresponding container filled with oil so that at installation they became everyone on the place (see rice. Removal of a yoke from a head of the block of cylinders on the engine of 1,6 l, Removal of a block of axial pressure from a head of the block of cylinders on the engine of 1,6 l, Extraction of a hydraulic pusher from a head of the block of cylinders on the engine of 1,6 l). |
| 25. Remove a head of the block of cylinders (see rice. Removal of a head of the block of cylinders on the engine of 1,6 l). |
| 26. Remove laying of a head of the block of cylinders. |
You make removal of a head of the block of cylinders on the cold engine. At installation it is necessary to use new bolts of fastening and new laying of a head of the block of cylinders. At installation of the case of the camshaft it is necessary to use sealant. The specified moments of tightening can be applied only to later bolts. When using bolts of early types specify the tightening moments at the dealer of Opel. 
