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Engine Rings Detroit MI

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 of Warren, MI
(586) 298-1973
14021 E 10 Mile Rd.
Warren, MI
V & W Motors Imports
(586) 467-5553
27371 Gratiot Ave
Roseville, MI
Safelite Auto Glass
(888) 820-2558
445 State St
Detroit, MI
Collex Collision Experts of Warren
(586) 772-8877, 001-2004
13741 Nine Mile Road
Warren, MI
Safelite Auto Glass
(888) 820-2558
12811 Capital St
Oak Park, MI
Curt's Service Inc
(248) 254-7382
14611 W. 11 Mile Rd
Oak Park, MI
Consumer Car Care
(586) 461-1229
21460 15 Mile Rd
Clinton Township, MI
Safelite Auto Glass
(888) 820-2558
23221 Woodward Ave
Ferndale, MI
Ford Motor Company-Experimental Vehicles Building
(313) 433-3488, 001-2004
20800 Oakwood Boulevard
Receiving B
Dearborn, MI
Main & Hudson Service, Inc.
(248) 546-6020, 001-2004
1000 South Main Street
Royal Oak, MI
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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

Related Local Event
Ford Rouge Factory Tours
Dates: 5/3/2011 - 5/3/2011
Location: Henry Ford Museum
Detroit, MI
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