Hi everyone. First of all let me thank you all for such a fantastic welcome to your forum. I didn't know what to expect but this is an amazing amount of great information. At first glance it looks like I have several options and I'll explore them all over the coming days. Perhaps there will be a solution waiting for me when I arrive in the UK. Fingers crossed. As anyone who has a BMC diesel in their boat can tell you the option of changing to something more modern is a constant nagging voice which gets louder every time the motor develops a problem. However, I've never been a fan of throw away culture and have "enjoyed" working on older bikes, cars etc over the years especially those that were designed to be maintained and rebuilt when the time comes. Between a limited budget, availability of alternatives in Panama and "better the devil you know" I think I'll stick with what I have for the moment and see how I get on. I have no plans to head across an ocean any time soon and will be happy if I'm able to hop along the coast to the San Blas islands one in a while. It's only a ten hour sail or motor (usually the latter) and I'm in one of the most beautiful cruising grounds. After reading your advice I feel much better about my chances of making that happen. Thanks again.