Top Piston Ring

With the most comprehensive line of piston rings compression rings and oil rings in the world we have a piston ring for practically any application racing automotive heavy duty transportation agriculture industrial small engine and more.

Top piston ring.

If both top and 2 nd rings have a dot and your set has a coating the od will be metallic in color where as the 2 nd ring will usually be black. The bottom ring known as the oil control ring is primarily for controlling the supply of oil to the cylinder wall in order to lubricate the piston skirt and the oil control rings. Piston rings give the best result when their working temperature is the lowest practicable. Install the dot toward the top of the piston.

It is the top surface closest to the cylinder head of the piston which is subjected to tremendous forces and heat during normal engine operation. Top piston ring position and working condition. A piston compressor does the job of compressing piston rings when you install a piston in a bore. So it is necessary for the top piston ring which has the severest duty to perform should be well clear of the hottest part of the piston.

In many cases this is also dictated by valve size and positioning valve pocket requirements the radial width of the top ring and the piston pin location. The top two rings known as compression rings are primarily for sealing the combustion chamber. August 11 2020 february 28 2020. Check the top ring for inside bevel and install bevel up.

Forced induction and nitrous applications that are subjected to extreme thermal and pressure shock loads typically require moving the top ring down from the piston top to about 0 300in. Combustion sealing is 100 percent the top ring s job combined with other piston features the second ring s role in this respect is to keep the pressure in the crevice space between it and the top ring as low as possible giving any blow by that makes it past the top compression ring a way to quickly escape to the crankcase. Superiortoplist is an amazon associate and we may earn commission when you purchase through links on our site. Hall s how to series video 5 how to tell the difference between compression rings top and second ring.

Ring lands and 5. Top 10 best piston ring compressors in 2020 reviews. At hastings we manufacture a bold and broad offering of piston rings one that spans thousands of applications for virtually any engine.