Gently.
Answer:Once the piston is removed from the bore the ring or rings are exposed.Each ring will have a gap or split in one place as it goes around the piston. This gap is spread open and the ring lifted off the piston.
If you need to reuse these rings or the pistons they are for you use a special tool.
If you don't care gloves are recommended and fingers will do the job.
Careful! The rings can break when flexed like this and create flying sharp steel pieces!
You have to disassemble the entire engine, remove the piston and check the rubber ring around that piston.
The DNJ ring spec. information, printed on each compression ring (located next to the piston ring gap), is installed facing the top of the piston for both the top (#1) and middle (#2) compression piston ring slots. The oil control ring can be installed just like any other oil control ring in the bottom (#3) piston ring slot.
a piston ring is not calibrated. You just slide the new one in place
The DNJ ring spec. information, printed on each compression ring (located next to the piston ring gap), is installed facing the top of the piston for both the top (#1) and middle (#2) compression piston ring slots. The oil control ring can be installed just like any other oil control ring in the bottom (#3) piston ring slot.
one ring per piston, the pistons have a groove in it where the ring fits on.
You mean a piston ring. It seals the gap between the piston and the chamber in your engine
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 lowest ring is the oil ring
With a piston ring compressor.
the tool you are looking for is called a piston remover, sold at every local auto zone As the rings in the piston wear on the wall of the cylinder, a ridge forms at the top of the cylinder. This has to be removed with a Ridge Reamer. It cuts the ridge down until the cylinder is smooth otherwise the rings in the piston would catch on it and the piston cannot be removed. Once the cylinder is smooth, you can tap the piston out using the handle of a wooden handled hammer. To install the piston back in, you use a Ring Compressor that squeezes the rings into the grooves of the piston. Put lengths of plastic tubing over the Rod Bolts so that you don't nick the crankshaft and tap the piston into the cylinder with the same wooden hammer handle.
There are compression ring and oil control ring
more heat is generated in working of engine so its piston ring war out and cut mark appears on the ring surface.