Tondelayo was re-powered with a 40hp Iveco M4041 in 2005 which starts first time every time and never misses a beat.
I usually replace the raw water pump impeller once a year but last year I decided to pull it off and give the whole thing a good service.
Here's my first ever video which took forever to put together and is really pretty crude but there's some good stuff in here if you are thinking of servicing your raw water pump.