The diesel mechanic finally got to the boat last Monday. He carried out a compression test which the engine passed, so he judged it to be fundamentally sound. There is no doubt the engine ran better with the new exhaust system, but the engine still would not accelerate over 1500 rpm, off load. Over winter I will get the injection pump rebuilt. I arranged to have Fiona hauled next week. Hope you had a Merry Christmas friends. Eric