Report Abuse. Honing out the cylinder is just taking the edge off if you will. your just cleaning it up abit. You shouldn't have to get a bigger piston. but what you might want to check is if that is the original piston or if it has been replaced.
A common cause of variegation is the masking of green pigment by other pigments, such as anthocyanins. This often extends to the whole leaf, causing it to be reddish or purplish. On some plants however, consistent zonal markings occur; such as on some clovers, bromeliads, certain Pelargonium and Oxalis species.
The infection often starts in the roots and may spread upward to the base of the pseudobulb or leaf, which can cause the leaf to fall from the plant with a slight jarring. In seedlings and community pots, small water soaked spots may start on the seedling, and plant after plant rots and dies. - Cattleya. May show a creamy yellow discoloration on one or both sides of the pseudobulbs. The discoloration eventually turns black or brown and softens, and the bulb rots.