and fig6 shows the relative position of the parts when the engine is being removed elevated position with the wheels 16 resting on rails 78 it can be seen that in fig5 the rollers 16 do not touch or engage the rails 78 but in fig6 the rollers 16 are riding on the rails 78 the rails 78 are shown as triangular in cross sectional shape but other arrangement may be used within the spirit of the invention in these figs the wheels 16 are shown mounted to the beam by axles 17 the details of the rear rail mount and actuator mechanism 22 and 23 are shown in fig1 13 and 14 front mount 21 is constructed in a somewhat similar manner but does not have the actuator structure the rear mount and actuator mechanism includes two u201c l u201d shaped legs 90 which have a connector leg 92 at the bottom for holding the two legs 90 in place this may be of a single piece or several parts connected in a suitable manner there is a lever 94 which is pivoted to allow limited rotation the upper lever leg 96 is connected to the nearby section of rail 78 and the side lever leg 98 extends rearwardly and is connected to the actuator fork 100 when this fork moves the lever moves with it a bolt 102.