04-09-2019, 04:46 PM
For the last 50 years my cars have been a Javelin and then a Minx. Both have alloy cylinders, latter Minor style with the lever allowing water to enter. Weep slightly every few years. Most resleeve but is tricky and expensive with the lever type and slot. I have simply smoothed with fine paper and replaced cups. Surface is not perfect but survives for years . the Javelin ones(with no external seals) regularly stuck due the cyl plating wearing through. Cleaning them removed remaining plating and made worse. I just tinned them and then OK for years!