About GM Piston Ring
A part that is deep within your engine is a GM piston ring. It is a metal ring which is on each piston in your engine, and its purpose is to seal any gap that is between your cylinder wall and this piston itself. It functions by keeping a seal on the combustion chamber to keep any loss of gas into the crank case down to the least amount possible, and at the same time improves piston heat transfer into the cylinder walls. Most piston rings are specially coated and manufactured with resilient materials like steel or cast iron.
The piston ring will be located on the piston assembly, and most will last the life of your vehicle. Piston ring replacement fortunately is not a very common repair that most motorists will have to carry out. If the day comes when you do have to replace your piston rings, buy a brand new GM piston ring set so that you have peace of mind knowing that GM engineers designed the rings specifically for your prized vehicle. Once repaired and replaced with the new set, it will restore lost engine compression and its overall reliability!
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