diesel engine of the same type still has to pass its test a team of fitters had just eight hours in which to replace the heart of the engine the two power units with cars and trucks now queued up in front of the ferries loading ramp the engine just has to start up otherwise well that doesn't bear thinking about no way but in fact the engine won't start so the fitters have to check all the lines and try again [Applause] success the engine is running again and to the ears of the fitters the deafening noise sounds like music the pitstop has