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Title: Le Nivex gauge pump Post by: davidwheeler on 01 June, 2016, 01:25:19 PM Has anyone managed to get inside one of these? I think from pictures on the net that the bottom unscrews but have not managed to do this and I don't want to force things. It has lost all its pressure ability, I suppose there is some sort of non return valve in the piston?
Title: Re: Le Nivex gauge pump Post by: Tony Stephens on 12 June, 2016, 06:20:49 PM Mike Benwell seems to know his way around Nivex gauges
Title: Re: Le Nivex gauge pump Post by: davidwheeler on 16 June, 2016, 10:55:00 AM I could faintly see aline round the end indicating a cap but I could not undo it. I made a very thin tool for the lathe and cut away the cylinder so as to take the pressure off and was then able to unscrew the cap - desperate measure but it worked. Inside is a piston with a thin and perished cup washer. I bought a cup washer but it is too thick and would need I make a new smaller piston. I tried making a cup washer but no good so I simply fitted a couple of plain leather washers - and it seems to work!
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