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Cylinder head
A warning  To facilitate assembly, put labels on the recorded brackets, as well as the route laying cables and hoses.
Withdrawal
| PERFORMANCE ORDER | | 1. Drain the coolant. | | 2. Remove the camshafts (see. Subsection 3.2.1.9). | | 3. Keep in mind that the following description refers to the removal of the head assembly to the exhaust and intake manifolds. The volume of work on the removal of the head is reduced, but find it difficult to manipulate the head because of the increased size and weight of the entire assembly. It is recommended to first remove both the collector (see. Subsection 6.1.12 and subsection 6.1.13). | 4. On engines with preliminary preparation of fuel - air mixture (single-channel injection system), do the following:
- Cnimite air filter;
- Follow activities decompression fuel system and disconnect from the chamber throttle the fuel hose and the return hose (Plug all openings to prevent loss of fuel and dirt into the fuel system);
- Disconnect the accelerator cable;
- Disconnect the wiring from the chamber throttle intake manifold and other parts;
- Disconnect the hose of the vacuum amplifier of brakes, cooling system and crankcase ventilation system of the respective valves and nozzles mounted on the cylinder head;
- Remove the intake manifold support bracket;
- Disconnect the exhaust manifold from the exhaust front pipe. | 5. On engines with direct fuel injection (with a multi-injection system), do the following:
- Remove the air filter and the air duct;
- Follow activities decompression fuel system and disconnect it from the fuel rail fuel hose and the return hose (Plug all openings to prevent loss of fuel and dirt into the fuel system);
- Disconnect the accelerator cable;
- Disconnect the wiring from the chamber throttle intake manifold and other parts. Disconnect the wiring harness from the injectors and take aside so as not to interfere with the removal of the cylinder head;
- Disconnect the hose of the vacuum amplifier of brakes, cooling system and crankcase ventilation system of the respective valves and nozzles mounted on the cylinder head;
- Remove the support bracket (s), intake manifold;
- Disconnect the exhaust manifold from the exhaust front pipe. | | 6. On vehicles equipped with automatic transmission disconnect a cable of downshifting from the chamber throttle. | | 7. Loosen the hose clamps and disconnect the hoses from the coolant pump from the heat exchanger and from the oil cooler (if equipped). Disconnect hoses and the radiator at the front of the cylinder head. | | 8. On engines with direct fuel injection modification Phase I remove the starter (see. Subsection 7.6), then loosen and remove the bolt coolant pipes to the rear of the engine block. | | 9. Disconnect the wiring from the ignition distributor, ignition coil and from the transistor from the power supply. Disconnect the hose clamps from the wiring, take away from the cylinder head. Loosen the bolts and remove all wires on the weight attached to the cylinder head and intake manifold. | | 10. Release the alternator bracket bolts to the cylinder head. |  | 11. Loosen and remove the M6 bolts securing the cylinder head to timing chain cover (if the screws have not turn away), unscrew the bolt and in front of the cylinder head. |  | 12. Working in the reverse order shown in the diagram, loosen all ten basic cylinder head bolts. Loosen the bolts in several stages, 1/2 turn for the reception, until bolts not begin to turn away from the hand. | | 13. Remove the bolts and washers, drawing attention to their position in the cylinder head. | | 14. Remove the cylinder head. This procedure is desirable to perform an assistant, as head assembly with the cam is quite heavy (especially if collectors are not removed). Remove the cylinder gasket, noting the two locating pins. If the pins gets out of the holes, remove them, noting the position of the initial installation, and store with the cylinder head. Also note the correct installation of the oil nozzles in the engine block. If the nozzles are weakened and they can be removed, remove them and store together with the cylinder head. | | 15. Check for damage on the split surface of the head and cylinder block (deep scratches, chips, etc..). Minor damage to the needle files are removed, serious damage removed only by grinding. | | 16. If the head is disassembled for overhaul, refer to the description in the relevant section. |
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Preparing for the Build
| PERFORMANCE ORDER | | 1. The manufacturer recommends to measure the cylinder head bolts to determine their continued suitability. Measure the length of each bolt (after removing the disk) from the inner surface of the bolt head to the end of the threaded portion. If the length of the bolts at least 158.2 mm, the screws can be used. If the length of at least one of the bolts exceeding 158.2 mm, all the bolts must be replaced complete. In view of the efforts that are experiencing the cylinder head bolts, it is strongly recommended to replace them, regardless of status. | | 2. Before installing the cylinder head to the engine, thoroughly clean the surface of the detachable head and the block. Remove residual sludge and gasket material hard plastic or wooden spatula, clean and sludge from the bottom of the piston. When cleaning Be very careful, because the surface can be easily damaged. Also take measures to avoid getting removed sludge in oil ducts or channels of the cooling system in the engine block, otherwise the possibility of blocking channels and violation of lubrication of the engine parts. Adhesive tape and paper, close the openings oil channels, the channels of the cooling system and the bolt holes in the engine block. To avoid the penetration of dirt into the gap between piston and cylinder seal the gap grease at the edge of the piston crown. After cleaning, remove the pistons from the gap brush grease and wipe the remnants of grease with a clean cloth. | | 3. Check for damage on the split surface of the head and cylinder block (deep scratches, chips, etc..). Minor damage to the needle files are removed, serious damage removed only by grinding. | | 4. If there is a suspected strain of split surfaces, check the deviation of the surface from the plane with the help of fire. |
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Setting
| PERFORMANCE ORDER | | 1. Wipe the surface of the detachable head and the cylinder. Reinstall the two dowel pins (if removed) and insert the oil nozzle in the engine block. | | 2. Put on the block of cylinders a new lining, aligning the holes in the gasket with the pins. | | 3. With an assistant, carefully install the cylinder head on the block, aligning the head with mounting studs. |  | 4. Grease the threads and bottom of the bolt heads with clean oil. Put a washer on the bolts and gently insert the bolts into the holes in the cylinder head (drop the screws into the holes is not allowed). Tighten bolts and tighten by hand. | | | | | 5. Tighten the top 10 cylinder head bolts in the specified sequence with a torque corresponding to the 1st stage of the tightening. Tightening torque wrench to face head. | | 6. After the 1st stage of the tightening, tighten the bolts to the 2nd stage. | | 7. Wait for a moment and release the bolts in sequence of return specified in the scheme in a tightening of bolts n. 5. loosen gradually, 1/2 turn for the reception, until bolts not begin to turn away from the hand. | | 8. Re-tighten the 10 bolts by hand, then tighten in the sequence, with the moment of the 3rd stage of the tightening. |  | 9. After the third stage, tighten the bolts on the angle specified for the 4th stage of the tightening. Tightening at this stage it is recommended to carry out the key to the angular scale, to ensure strict compliance with the requirements for tightening. In the absence of a key with an angular scale apply paint marks on the bolt head and the surface of the cylinder head. Tags should be placed at a predetermined angle. These labels should be guided in the performance of the 4th stage of tightening. | | 10. After completing the 4th stage of the main tightening the cylinder head bolts, tighten the bolts to the 5th stage with correct sequence. | | 11. After the final tightening of the main cylinder head bolts tighten M6 bolts at the front of the cylinder head and tighten with the set moment. | | 12. Lay the wiring on the former route, connect the wiring connectors to the ignition distributor, to the ignition coil and power transistor unit. Secure the wiring in place with clamps and strapping. | | 13. Attach to the cylinder head and the collector wires to ground, tighten the bolts. | | 14. On engines with direct fuel injection modification Phase I screw into the cylinder block bolt pipe cooling system and tighten. Install the starter (see. Subsection 7.6). | | 15. Connect the cooling hoses, keeping the original order of installation, secure the hose clamps. | 16. Guided by the relevant parts of Chapter 4, do the following:
- Connect all the wiring, hoses, and control cables to the details of the fuel system and the suction manifold;
- Install the intake manifold support bracket;
- Attach the front exhaust pipe to the exhaust manifold;
- Set the air filter and air channel (if provided). | | 17. On vehicles equipped with automatic transmission, attach the cable and adjust downshifting. | | 18. Install the camshafts (see. Subsection 3.2.1.9). |
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