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A partition and check of a head of cylinders
A warning  To perform partition and check the cylinder head requires special tools and spare parts, which you may not be. So if you're a fan, you will be much more economical to buy a new head, you spend time on the bulkhead and repairing the old one.
Bulkhead
| PERFORMANCE ORDER | | 1. Remove the cylinder head, camshafts and valve lifters. |  | 2. Before removing valves, prepare separate numbered bags to stack them in the valves and the corresponding parts. |  | 3. Squeeze the spring of the first valve and remove clamps pliers. Remove the spring plate, spring and spring seat. |  | 4. Remove the valve from the head and remove the gland of the valve stem out of the guide sleeve. If the valve does not pass through the guide tube, smooth out the edges of the valve stem end of sandpaper. | | 5. Do the same with the other valves. | | 6. After you've seen the head, it must be cleaned and checked. |
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Cleaning | PERFORMANCE ORDER | | 1. Clean off all traces of the old gasket from the surface of the head and wipe it with a solvent. | | 2. Clean the deposits formed in the internal channels and openings of the head. If rust deposits blocked the water channels of the head, consult a specialist. | | 3. Using a suitable tap and compressed air, clean the threads in the head bolt holes. | | 4. Clean the brush thread dowel pins intake and exhaust manifolds. | | 5. Wash the head in solvent and dry it. | | 6. Rinse in the solvent valves and their components. Dry all parts. |
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Check Area check valves | 1. The focus of the valve 2. The grooves spring retainer 3. The valve stem 4. Bevel valve 5. The edge of the valve 6. Exhaust valve 7. Inlet valve |
| PERFORMANCE ORDER | | 1. Inspect the head for cracks, traces of coolant leaks and other damage. When detecting fractures, the head must be processed in the machine, if the damage is too severe, the head must be replaced. |  | 2. Using a ruler and check the deformation of the probe head mating surfaces. If the deformation exceeds the limits head must be treated in a specialized workshop. | | 3. Inspect the valve seat if it is damaged, consult a specialist. |  | 4. Measure the clearance between the valve stem and the guide bush by means of the measuring device. The readings should be divided into two and you get the value of the gap. If the gap exceeds the admissible limits, the valve guide must be replaced. | | Valves | | 5. Inspect the bevel valve for wear, deformation, cracks, burnt areas and other damage. Check the valve stems in the presence of the wiped areas and cracks. Check for bent rods. If you find any damage to the valve must be treated in a specialized workshop. |  | 6. Measure the width of the valve. If the resulting value is less than the permissible limits, the valve must be replaced. | | A valve element |  | 7. Inspect the valve springs for wear and damage. Measure the length of the springs. If the length of a spring is less than the limit in the specifications, replace it. |  | 8. Check that the springs were straight. If necessary, replace the deformed spring. |
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