Motorcycle engines - Import export

Right hand cutting solid reamers with extra long shanks. The front end of these reamers is ground to act as pilot. The cutting edges are precision ground with a gradually increasing relief angle to eliminate chattering and to permit easy and smooth chip formation. The reamers are provided with a hard chromium coating. The very hard chromium coating reduces friction, giving improved chip flow and reducing the tendency for built-up edges.

Application The VDS1A is designed to reface valve seats of the engines of motorcycles, cars and light commericial vehicles. Features The VDS1A refaces the valve seat in a lathe-type facing action. A gear head includes a feed mechanism for continous outward transverse motion of the single point turning tool when the VDS1a is rotated around a pilot inserted in the valve guide. The direction of the feed motion is defined by an exchangeable adapter head screwed to the gear head. A steady rest which is mounted on the cylinder head stabilizes the VDS1A below the crank handle. The steady rest eliminates runout when rotating the VDS1A around the pilot. As a result, the seat is refaced to concentricity with the valve guide under the correct seat angle.