The lowest ring is the oil ring
There are compression ring and oil control ring
oil control ring
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.
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.
Normal piston have 2 compression rings and a 3 piece oil ring. Some aftermarket rings have a 2 piece zero-zap second compression ring to reduce blow-by.
compression rings.. while the bottom ring is known as oil ring .
Generally in grooves near the top of the piston. The compression rings, near the top and the oil rings at the bottom of the top. The ring gaps are staggered.
No, the bottom ring is the oil ring. It wipes excess oil off the cylinder wall.
Yes. That is a true statement.
Valve, valve spring, piston, piston ring, cylinder wall, head, headgasket, diluted oil, stuck injector,
Most commonly the bottom ring will be the Oil Controlring.(Control added by amclaussen.)Oil control ring is correct. It is used to keep the cylinder lubricated as the piston goes up and down. The first two top rings are for compression. However, the 2nd from the top ring is also a wipper ring. Used to keep oil from getting into the combustion chamber.(~Decker)
The ring that prevents the majority of the expanding compression gases from passing the piston into the crankcase is called the compression ring. Typically located at the top of the piston, it creates a seal against the cylinder wall, ensuring that combustion gases remain contained during the power stroke. This helps maintain engine efficiency and performance by reducing blow-by, which can lead to oil contamination and loss of power.