I'm at present trying to source a replacement solenoid (separate from the starter and mounted on the firewall) as this seems a good place to start.
However, on removing it from the vehicle and having a good look, it has no identifying part numbers or even a make!

Anyone know what the part number would be?
There are two types one for pre-ballast ignition and one for ballast ignition. I would need the latter.
Thanks in advance for any help.

Neil.