Sorry for long time to reply, live on a boat so internet is sporadic. since I wrote, the snow melted and the River Avon nr Bristol rose about 14ft over night. Range Rover was (and still is) in field adj. I was sent a pic showing the water at top of doors. So a few more minor irritations to...

thanks will give it a go- thought about the injector thing but noise seems to be coming from the other side of the engine. On first start there was black smoke that seemed to come from between no3 and no 4 rocker box covers but not sure. Is the head gasket all in one or four separate ones?

1990 2.5 diesel seems disabled by the alarm. Can start by frigging to start solenoid. With key hazard lights flash intermittently. Is there a reset procedure?

My 1990 2.5 diesel sounds like exhaust manifold is blowing, just changed manifold gaskets and it is still doing it. Any ideas?