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:
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: