To prevent compressed gas passing into the oil sump of the engine of an automobile.
The purpose of a piston ring expander is to make it easier remove and install piston rings. Because of the low torque they use, they help to prevent damage to the piston rings.
The gasoline is avoided to go into the oil by few piston rings placed on the piston of the engine. Actually, the piston rings are made for this purpose only.
You might have bad piston rings, main cause of that because once you wear your rings out your gas is then able to seep past your piston rings into your oil and into your pan.
The piston rings create a seal between the piston and the cylinder wall.
Gently, they break easily. They also make tools to R&R piston rings to avoid breaking the rings.
Oil rings Combustion rings Piston rod Piston rop cap
To compress gases in order to create a controlled expansion of gases thus allowing the piston to descend
The piston rings are fitted round the piston to make a better gas-tight fit in the cylinder.
The three main functions of piston rings in reciprocating engines are:Sealing the combustion/expansion chamber.Supporting heat transfer from the piston to the cylinder wall.Regulating engine oil consumption.
The main, rod and cam bearings will be the first to go.
Running an engine with broken piston rings will cause damaging scoring in the piston chamber, and is not to be recommended.
It is a spring metal sleeve that goes over a piston to compress the rings so that the piston can be install in the motor. It tightens down on the piston, forcing the rings into the grooves in the piston then you tap it into the cylinder.