I have a Mini 30, 1989 but I have a 1275 engine out of a 94 mini in it.
Recently the oil pressure light has been flickering so I fitted an electrical gauge to see exactly what was going on.
On startup I am getting between 50-60psi, and then after 10 - 15 minutes of driving once the engine warms up the gauge just keeps getting lower and lower until its floating between 5 and 15 psi.
The engine was fitted with a new oil pump with new oil and filter in September last year when it was out and I have covered around 4000 easy miles since.
I fitted a new relief valve last night but the problem still persists.
Was thinking of doing an oil and filter change tonight and seeing if anything happens because it is due one. If not I guess it is engine out time... but Instead of diving into that, could an oil pump really fail after only 4000 miles? Has anyone experienced this before?
Was thinking their could be a blockage somewhere.... or bearings but i'm not sure.
The car drives absolutely fine with no bad sounds but I wont be going any further until this is resolved
Any help is much appreciated as always