Have you tried jump starting it yet?
bump
As said in reply66, starter works fine connecting solenoid terminals 12v live to solenoid activate, it cranks the engine, but ngine does not start.
Didn't answer the question.
Have you physically connected the battery on the car to the battery of a working car with jump leads for the express purpose of starting it?
No. I have connected a second fully charged battery with jump leads to battery in car, but that was before I worked out how to crank the starter. With the fuel gauge suddenly reading empty and the display saying F gal/h I thought we had agreed the fuel pump and gauge were lacking power.
Do you reckon it is worth my dipping the fuel tank to confirm there is fuel in it, and if there is: I should connect the battery of a second car, with engine running, to the battery of sick car, with SWMBO in sick car, in neutral, handbrake on, crank the engine for a minute or so, and see if it starts?
This is exactly what I suggested you do. Don't piss about trying to 'dip' the tank though. The gauge should work with reliable voltage applied to the car. Instructions to follow...
Thanks for all your help, Doc. I did most of that on day one, in that I put in a freshly charged battery, and when nothing happened, I jumped to it another larger, freshly charged battery. I put on the headlights. I turned the key, the engine did not crank, and the headlights did not dim.
I do not know a man who could help.
This job is not urgent. I had planned to leave the car until I could get a new Vx thermostat to throttle hose, as you suggested, but I got bored with the lockdown, so bought some Loctite EA9492 and reassembled the pipe, then the exhaust. Then I put back the battery, and the rest you know.
It gives me something to do in the lockdown, which could last till next summer. I believe everybody will eventually catch coronavirus, and that will sort me out.