I realised that the best course of action as regards checking oil pressure would be to plug in the loom before start up to get the warning lights working (thanks for all the helpful replies by the way!)
HOWEVER!
My test probe tells me that my EARTH CIRUIT IS LIVE
I've got the battery connections on and solid earths from battery to chassis ,engine to chassis and the big wire from the battery to the bell housing near the starter solenoid. Most other major plugs are connected.There's a group of earths with shakeproof ring connectors I've attached to the chassis .
I'm baffled( thats a nice way of saying that I don't know what's going on)
Any ideas please
http://s1189.photobucket.com/albums/z429/ayjay50/