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Engine Rings Kansas City MO

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.
AAMCO Transmission & Total Care Care
(816) 974-8947
7320 Troost Ave
Kansas City, MO
AAMCO Transmission & Total Care Care
(913) 538-1954
6144 Merriam Lane
Merriam, KS
Drive Line Service
(816) 471-3154
1620 Troost Avenue
Kansas City, MO
Care-Free Auto Repair Inc
(816) 453-5588
4530 N Brighton Avenue
Kansas City, MO
Safelite Auto Glass
(888) 820-2558
1500 Erie St
Kansas City, MO
AAMCO Transmissions Total Car Care
(816) 427-1995
2319 S Lees Summit Rd
Independence, MO
AAMCO Total Car Care
(816) 368-1914
7609 Raytown Rd
Raytown, MO
I-70 Auto Service, Inc.
(816) 921-0505, 001-2004
3111 Stadium Drive
Kansas City, MO
Klemp Electric Motor Repair
(913) 371-4330
739 Central Avenue
Kansas City, KS
Safelite Auto Glass
(888) 820-2558
324 S 11th St
Kansas City, KS
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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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