1. It is best to disassemble the engine on a special stand, but if this is not possible, you can use a workbench or even disassemble the engine directly on the floor.
2. Absolute cleanliness must be maintained during disassembly. First of all, you should thoroughly clean the outside of the engine from oil and old dirt.
3. The work will be easier if you use a good fat solvent. Apply the solvent, wait a while and rinse it off with a strong stream of water. The fat will be washed away along with the solvent. If there is a thick layer of old dirt, vigorously rub in the solvent using a stiff brush.
4. Upon completion of cleaning, wipe the engine with a rag and only then begin disassembling it. As you remove individual parts, clean them in a kerosene bath.
5. Never immerse parts with lubrication channels in kerosene (e.g. crankshaft and camshaft). Such parts are wiped with a rag soaked in kerosene. The lubrication channels can be cleaned with wire and then blown out with compressed air.
6. When overhauling the engine, all gaskets must be replaced with new ones.
7. When disassembling, do not throw away old gaskets, because these can be used as a template if you can't find new ones.
8. It is best to disassemble the engine from top to bottom. When you get to the point of removing the crankshaft, you can turn the engine on its side and continue working.
9. If possible, reinstall the removed nuts, bolts and washers and tighten them one or two turns. This will prevent you from losing or confusing them. If this is not possible, arrange them in the order they were removed.
10. You will need a valve grinding tool and a valve spring remover.
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