Harwood Marine Surveys carried out a pre - purchase survey and sea trials on a beautiful Fairey Swordsman for a client. On the sea trials one of two engines was not performing correctly when up to temperature.Thermal imaging was used to diagnose the problem fast. It was the injectors as seen in the pictures and 3D/IR pictures. The problem was pinpointed to two pistons. All injectors were sent away to be refurbished and another sea trial was carried out on completion of the refurbisments.
Engine under load not performing on two pistons.
3D/IR confirms two of the six pistons are not performing correctly.