Abstract: An apparatus useful for manually rotating a rotatable system, e.g., engine, located in a stationary housing having a hole therethrough, comprises a plate having at least one slot and being securable to the housing so that at least a portion of the slot extends into the space defined by the perimeter of the hole; and a bar having first and second ends, and being capable of being placed in the slot so that the first end contacts the system and the second end can be manually held. With the bar in this position, manually rotating the bar about the slot causes the system to rotate.An improved method for manually rotating a system is also disclosed.