You have to disassemble the entire engine, remove the piston and check the rubber ring around that piston.
The lowest ring is the oil ring
oil control ring
There are compression ring and 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.
The bottom ring in a piston with three rings is typically the oil control ring. Its purpose is to regulate the amount of oil that reaches the cylinder wall to maintain proper lubrication without excess oil consumption.
Check the PCV (Positive Crankcase Ventilation) valve. Failure in the pcv ? Usually it's piston ring blow by caused by worn piston rings. Get a compression check. I'll bet this has at least 100K miles on it. Its called "blow-by" you need to replace the piston rings. Over time the rings and cylinders get wore out allowing oil to go past the oil compression ring. Also check to see if there are bubbles on the dipstick to your oil,thats an indication of bad rings too, its gas in your oil. Check if your PCV (Positive Crankcase Ventilation) valve is ok
compression rings.. while the bottom ring is known as oil ring .
The "D" on a piston ring typically indicates the cylinder bore diameter for which the ring is intended. The "N" refers to the ring's position on the piston, such as top, middle, or oil control ring. Together, "D N" specifies the ring's size and location within the engine.
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.
cracked oil ring on piston
No, the bottom ring is the oil ring. It wipes excess oil off the cylinder wall.