Relentless
Well Known Member
One of the most asked questions about our new cylinders is concerning the sleeve. The sleeve is made of aluminum not steel and is coated with a very hard Nykasil Carbide coating. We could have just coated the cylinder bore itself but felt that for a few extra bucks a removable sleeve would be give us more flexibility for design changes and maintenance. If the bore ever gets damaged it is quite easy to remove the sleeve and insert a new or reconditioned one. Why aluminum? Now everything in the cylinder is one material which means we can close down tolerances to levels consistent with modern engine design. Less blow-by, lower oil consumption, better heat dispersion, and increased efficiency of chamber.
Here is sleeve by itself:
Installed:
Note the edge of sleeve, allows a mechanical lock when bolted to case:
Simple drawing how the rings actually ride on the carbide particles held in place by Nickel coating:
Here is sleeve by itself:
![8yial1.jpg](/community/proxy.php?image=http%3A%2F%2Fi57.tinypic.com%2F8yial1.jpg&hash=55a58ff8e56374abd902997e30e9b714)
Installed:
![2ry6jbk.jpg](/community/proxy.php?image=http%3A%2F%2Fi60.tinypic.com%2F2ry6jbk.jpg&hash=03b2139589e9fa0ad997167a8369037a)
Note the edge of sleeve, allows a mechanical lock when bolted to case:
![30bg1us.jpg](/community/proxy.php?image=http%3A%2F%2Fi57.tinypic.com%2F30bg1us.jpg&hash=5b16d936dfbc60143863d2b7b750d6a8)
Simple drawing how the rings actually ride on the carbide particles held in place by Nickel coating:
![15npo2c.jpg](/community/proxy.php?image=http%3A%2F%2Fi62.tinypic.com%2F15npo2c.jpg&hash=36ba4d6a46ea2d849990413434e9731c)