keynsham1
Active Member
Does anyone know what thread size the oil pressure switch thread is? I want to fit a mechanical oil pressure gauge under the bonnet of my car as I have no faith in the original Rover gauges, having tried a combination of gauges and senders recently and got a different reading each time. I have seen adaptors which screw in to the oil pressure switch (not sender) hole which you can then add both the original switch ahd another gauge. I want to use the switch and not the sender hole as the sender hole needs about an hour of work just to get to on a NADA engine!