Snapped Exhaust studs part II

[anutz]

Anyone tell me what this component is - its the white thing i removed from the recess above, i think it must be oil pressure sensor or something....has a orange rubber O-ring, i cannot see it in the service manual - but am still looking

The left hand hole is where the water pump fits, i have removed that for cleaning....to the top right would be the sprocket....hope that gives you a location

Currently cleaning the engine as you can see