But if there's juice that goes into the ceramic in then passes along the pin and so along the inner of the insulator, no ?
Without puttin the ceramic, the pin is loose in the insulator, that's what I mean
The Brass Pin is supposed to be loose within the Black Insulator without the Ceramic Cup tucked in. It's the bottom of the Cup which constricts the space (between the Cup and the Insulator). And the Brass Pin 'holds' the Ceramic Cup in place.
Try using the 'other' Ceramic Cup and check the leaking. There could be some inconsistencies in the dimensions of the Ceramics and Insulators... I have issues with one set of them, however my new Diver's parts are perfectly tight-fit all around and NO LEAKS anywhere/anyway!

