Operating procedure:
- remove the remnants of old gaskets and sealant from the block;
- remove the technological plugs by drilling a small hole in the plug, screw a self-tapping bolt into it and remove the plug by pulling the bolt head;
- Flush all internal channels with warm water until the water flowing out is clear. Dry the block and grease it with a thin layer of oil;
- install new plugs of technological openings, using sealant for this.