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Engine Rings Baltimore MD

Ring sets in late-model engines are running hotter than ever before. As rings move up higher and higher on the piston to reduce emissions, they are exposed to more heat. A decade ago, the land width between the top ring groove and piston crown was typically 7.5 to 8.0 mm.
Hampden Tire and Auto
(443) 957-9263
1045 W 41st St.
Baltimore, MD
A A America
(410) 881-5540
7535 Ritchie Highway
Glen Burnie, MD
Automasters
(410) 870-8111
9301 Liberty Rd
Randallstown, MD
Fork Auto Body
(410) 803-5358
2705 Bel Air Rd
Fallston, MD
Woodbrook Sunoco Car Care Center
(410) 753-4373, 001-2004
6207 North Charles Street
Baltimore, MD
Aamco of Baltimore
(410) 921-9508
5918 Ritchie Highway
Baltimore, MD
Aamco Transmissions
(410) 803-5345
8709 Liberty Road
Randallstown, MD
A A America
(410) 999-8608
7060 Aviation Blvd
Glen Burnie, MD
Woodbrook Exxon
(410) 377-4522, 001-2004
6201 North Charles Street
Baltimore, MD
Prestige Hi-Tech Auto Service Center
(410) 882-5180, 001-2004
1800 Taylor Avenue
Baltimore, MD
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Engine Rings



By Larry Carley
4/1/2007

Adapted from Larry Carley's article in Underhood Service



The Extreme Life of Piston Rings and the Technology Used
in their Development

Piston rings have one of the toughest jobs inside an engine. Theyre slammed up and down between the ring lands thousands of times a minute, theyre subjected to searing temperatures and extreme pressures, and theyre constantly scraping back and forth against the cylinder walls. In spite of all of this, the rings are expected to seal combustion and vacuum, prevent blowby, control oil consumption, keep the cylinder walls lubricated, cool the pistons, and last but certainly not least, last almost forever (150,000 miles plus in a passenger car/light truck engine or up to 1 million miles in a heavy-duty over-the-road diesel)!

Its a demanding list, yet most rings are up to the task and hold up pretty well assuming the right rings are used for the application, the cylinders are finished properly and the rings are installed on the pistons correctly. Obviously, the ring sealing requirements of a high-revving racing engine or a hard-working diesel engine are much more demanding than those of a mild stock engine. So with that in mind, lets look at some of the latest thinking as it applies to piston ring designs, materials and coatings.

Stock Rings
With so many late-model engines running thinner, low-tension moly-faced ductile iron and steel rings, one might think cast iron rings are fading into histor...

Click here to read the rest of the article from Tomorrow's Technician

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