Yesterday I managed to start my Gold after a gap of about a year and a half.
The oil pressure light remained on. The last time the car ran, I had no oil pressure problems that I'm aware of...
I removed and inspected the pressure relief valve. I looks a bit scuffed on the conical part of the plunger, so I've ordered a new one, and a new oil pressure switch, just in case that's faulty. However, I noticed on MiniSpares's description of the new plunger the recommendation that a new plunger should be "lightly ground in" as inlet and exhaust valves are. Has anyone fitted a new relief valve and had to do this?
Also, given that the engine's been standing unstarted for such a long period of time, are there other possible reasons for the apparent loss of oil pressure that I have? The old oil was drained and replaced with new 20W/50 just a few weeks ago. I should add that I probably let the engine run for about a minute or thereabouts, just in case it needed time to build up pressure. I do hope this wasn't a big mistake...
As always, thanks in advance for any and all assistance.