Honing cylinder liners

Recent developments in the design of honing tools has made it possible to hone large liners (including the 90 bore types) while they are still installed in the engine.

Honing becomes desirable when rings and liners are suffering from scuffing. In such circumstances, the first priority is to find and eliminate the cause of the scuffing. After this is accomplished, the question is whether to recondition the liners economically.

The honing equipment used has been manufactured by “Chris Marine”.
The head of the honing device consists of four synchronised stones.
For the initial honing diamond, stones are used to break up the hardened surface in the scuffed areas. For the main honing, very coarse hard stones are used to produce a very desirable rough surface all over the liner.

The advantage, especially for the 2-stroke engines, is the possibility of saving the liner after a seizure, scuffing or blow-by. Even eliminating the ovality of the liner is possible. Another advantage is that it is possible to machine a rough linerwall to obtain a well oiled surface.

With our honing equipment, liners with a diameter of 200 mm up to 900 mm can be machined. Honing of liners of 4-stroke engines are mostly carried out in our workshop. Honing of liners of 2-stroke engines are mostly carried out on site in order to reduce overhaul time.

For more information please do not hesitate to contact our service departments: