The "cylinder jug" is the cylinder. This is the area that the piston and piston rings moves up and down in when the engine is turning.
The piston is prevented from tipping in the cylinder by the piston rings, which provide stability and guidance as the piston moves up and down within the cylinder. Additionally, the piston skirt design and cylinder wall clearance also help to maintain proper alignment of the piston during operation.
In a internal combustion engine, a cylinder ridge is an unworn area around the top of the cylinder wall. In that engine, the piston moves up and down in the cylinder, and the rings seal the piston in that cylinder. But the rings are spaced "down a bit" from the top of the piston. And when the piston reaches top dead center in the cylinder, the rings haven't gone all they way to the top of the cylinder. They end up wearing the cylinder out "underneath" that top area. In other words, it's the top part of the cylinder that is not in contact with the piston rings. It's the "unworn" part, if you will.
piston slap is when the piston inside the cylinder is somewhat smaller than the cylinder bore. when the piston moves up and down, it ends up moving side to side too. this causes a knocking/slapping sound as the piston slams into the cylinder walls.this can cause harm if the play between the piston and bore are significant, otherwise it's nothing to worry about. if the car is hammering you might want to take it to a garage.Piston slap is the piston lose is the cylinder and it is making a rattling noise.Hope this helps.
The piston moves up and down inside the engine cylinder.
WD 40
Al-Jazari,a Kurdish engineer, invented the conversion of the up and down piston movement in a cylinder into rotary motion.
The engine's piston moves up and down within the cylinder to help generate power.
Piston
combustion chamber, for the piston to slide up and down in
You should pull the head off to see how bad it rusted up so you don't waste your time. If it is only lightly rusted clean up what you can and put the head back on and fill the cylinder with penetrating oil or Marvel Mystery Oil and let it sit for a few days then work the crank back and forth until it breaks loose.
Place rings into their respective positions on the piston. Place ring compressor over rings and tighten up until you can only just move the piston inside the compressor. Place the top of the piston into the bottom of the cylinder, push the piston and rings up out out of the compressor and into the cylinder keeping the compressor hard against the base of the cylinder. If you do not hold the compressor hard against cylinder the rings will slip out and you start again, you are not allowed to throw the compressor at your garage door until the third time. You should try it without a compressor, or have you?.