15.1 Use a puller to remove the plugs
1. Drill holes in the plugs and remove them using the puller (15.1).
2. Remove traces of old gasket and sealant from the surface of the cylinder block.
3. Remove the main bearing caps and liners.
4. Remove all cylinder block plugs.
5. If the engine is very dirty, contact a specialist to clean it.
6. After cleaning the block, clean the oil channels and wash them with warm water. Dry the cylinder block and lubricate with anti-corrosion oil.
15.7 Clean the threaded holes in the cylinder block
7. Clean the threaded holes in the cylinder block using a brush, then blow them out with compressed air (15.7).
8. Install the main bearing caps in place and lightly tighten the mounting bolts.
15.9 Use a large socket and extension to install new plugs
9. Lubricate the plugs with Permatex N₂ sealant and install them on the cylinder block (15.9).
10. Apply sealant (such as Permatex N₂ or Teflon pipe sealant) to the new oil passage plugs and screw them into the holes in the cylinder block.
11. If you are not going to continue assembling the engine, cover it with a plastic bag