Abstract: A tool for treating automotive ignition timing marks includes an elongated handle, a linking member and a holding fixture for holding a stick of chalk for highlighting timing marks or a cloth for cleaning the marks. The linking member is pivotably mounted to the handle, and the holding fixture is pivotably mounted to the linking member so that the elements may be positioned in a wide variety of angular orientations with respect to one another. Tightening means are provided for locking the elements in the desired positions, enabling the device to reach otherwise inaccessible areas in the engine of an automotive vehicle.