With a lot of hassle, I think it might be.......... overall it's had another oil change, cleaned out oil pick up pipe, engine flush, new oil pressure switch, sump and pick up pipe gaskets and another oil filter. Have plumed in an oil pressure gauge and now reading as it should.

Got it sorted too late, oil pressure problem caused tapping and most likely oil starvation so as soon as it was sorted, needed ANOTHER new kent cam and lifters after only 280 miles of use