i agree with the recommendation of Tony Brooks. He has maintained charter fleets for years - seems to know masses about all the different engines out there, so when he is teaching he makes it relevant for your engine. When you do the course - you have 2 name cards on your desk - one for your name and one for your type of engine. The 2 day course also covers other engine systems. You don't get an RYA certificate but you get lots of hands on practical knowledge. By the end of the course we were able to winterise our engine, find basis faults and fix them. I have no connection with him - just think it was an excellent course.
Regards
Sam
Planning a UK circumnavigation -
www.circumnavigation-uki.co.uk