for Mitsubishi Excavator K4F K4E K4D Overhaul Piston Ring + Gasket kit + Bearing Set

at this stage in the engine build we see now that we have connected all of the pistons with the pins on the Konrad's in the correct manner and we're going to give everybody a little view of the difference of some of these Pistons in the bottom some like engines they have a oil cooling system that actually runs oil through the workings of the piston and back out the other side this is done by what is called a spray bar or spray jet we'll talk about these a little bit later on but to give you an idea these sit in the block and they inject oil into this small cavity or the small hole and that loops through the piston and comes back out the other side slightly lubrication but at the same time it cools the piston which is very important these I performance this is my performance diesel engine this that we're building right now another point to make out is that the orientation of these Piston