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ring to cylinder matching

jaguar

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Joined
Jul 29, 2000
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#1
Basically there are two types of cylinders, lined with a steel sleeve or aluminum coated with a chrome like substance. And I think some rings are also chromed but I don't know if chromed or steel rings are for chromed cylinders. Any info on this is appreciated.
 

jaguar

Subscriber
Joined
Jul 29, 2000
Messages
1,359
Likes
32
Points
48
Age
60
Location
South America
Website
www.dragonfly75.com
#2
from the Wiseco site:

Most modern Powersports engines use a Nikasil (Nickel Silicon) type of material plated onto the aluminum sub-material. Nikasil appears shiny (like chrome) when new, and is highly resistant to wear. All Wiseco rings are compatible with Nikasil, and will offer long service life and great sealing and performance.

Some other popular versions of Nikasil-like cylinder bore coatings can be called Electrofusion (Kawasaki) and Boron Composite (Suzuki). All Wiseco rings are compatible with these materials.

Some older model engines still use cast iron cylinder walls, which is a sleeve that is either inserted or cast into the cylinder. All Wiseco rings are compatible with cast iron sleeves. A cast iron sleeve will appear somewhat obvious, where the liner will be a different color than the cylinder, will appear to be a separate piece of the cylinder, and will attract a magnet.

Some older model engines use a chrome plated cylinder, and are becoming harder to find. A chrome cylinder can appear like a Nikasil cylinder, so it is always good to research your engine prior to installing a ring. Only some Wiseco rings are compatible with chrome plating. These ring types are normally non-coated, such as a cast iron ring face, to prevent the ring from scuffing the bore and not working properly.
 
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