Use a large punch to insert the soft cork into the block | 
After the soft plug has been inserted into the block, it can be grasped with pliers and pulled out |
2. Using a gasket scraper, remove all traces of gasket material from the engine block. Be very careful not to notch or gouge the sealing surfaces of the gasket.
3. Remove the main bearing caps and separate the bearing shells from the caps and engine block. Make a note of the bearings, which cylinder they were removed from, and whether they were in a cap or block.
4. Using an appropriately sized socket wrench, remove any threaded plugs from the block.
5. If the engine is extremely dirty, it must be cleaned with steam or hot water.
6. After that, clean all oil holes and oil lines. Cleaning brushes are available at most parts stores. Rinse the channels with warm water. until the water runs clear, dry the unit thoroughly and wipe all surfaces with grease to prevent rust. Use compressed air to speed up the drying process and blow out the oil holes and passages.
7. If the block is not very dirty, it can be washed with warm soapy water and a stiff brush. Regardless of the cleaning method used, make sure all oil holes and passages are thoroughly cleaned, dry the block completely, and coat all surfaces with a thin coat of oil.
8. The screw holes in the block must be kept clean to ensure accurate torque readings during assembly. Run a proper sized plug and each of the holes to remove any rust, corrosion or sludge buildup and repair any damaged threads. If possible, use compressed air to clear the holes of the dirt generated by this action. Thoroughly clean the threads on the main bolts and also on the main bearing cap bolts.
9. Reinstall the main bearing caps and tighten the bolts in the direction of the arrow.
10. After covering the sealing surface of the new soft plugs with a good quality sealant, install them in the engine block. Make sure they go straight in and placed properly to avoid leakage. There are special tools for this purpose, but the same result can be obtained using a large socket and a hammer (photo).
Coat the new soft plug with caulk, then use a large socket type adapter to guide it into the block while keeping it straight
11. If the motor is not assembled immediately, cover it with a large plastic bag to keep it clean.