Copper Bottom

Decided to have one last go at sealing the Oil-pressure Sensor today, before I’m left to conclude that it’s the sensor itself which is the source of the leak and not the join between it and the engine block. I nipped off to Hellfords and scored a box of mixed size copper washers, in the hope that, amongst the range therein, would be some the right size for the job. Then it was off with the recalcitrant sensor again.

Leaking sensor off again. The silicone seal looks not bad, but what do I know?
Leaking sensor off again. The silicone seal looks not bad, but what do I know?

I discovered that, as I belatedly expected, the metal lip at the base of the screw thread, on the body of the sensor was actually an existing washer. It was a good tight fit –I had to ‘unscrew’ it using pliers, but it did look a bit rough round the edges:

Threads
Threads
Cleaned up sensor
Cleaned up sensor
Belt: New copper washer in place. Not as tight fit around the threads as the existing one, but hopefully providing a better seal, thanks to Hellfords' second-to-none quality stock of merchandise
Belt: New copper washer in place. Not as tight fit around the threads as the existing one, but hopefully providing a better seal, thanks to Hellfords' second-to-none quality stock of merchandise
Braces: Another dolloping of silicone sealant around the washer, for luck
Braces: Another dolloping of silicone sealant around the washer, for luck
And back in she goes. Leave it to cure over night and, no doubt, tomorrow I'll find it's still dribbling like an incontinent aubergine. Oh well. One can but try!
And back in she goes. Leave it to cure over night and, no doubt, tomorrow I'll find it's still dribbling like an incontinent aubergine. Oh well. One can but try!