Quote:
Originally Posted by matthewhouse
The grease is there as it 'melts' and oozes all over the place from the heat. A new valve won't have the grease there, just around the moving parts. I've just found a brand new one here and the original grease position can be seen. After a few years use the brass moving parts will be totally dry of any grease and the parts grind away at each other. This usually results in grinding a deep groove in the brass teeth of the pinion. Finally it gets to the point it no longer grips the rack that actuates the valve.
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Would a dollop of silicone grease help with this? Supposed to be non melting but no idea of its lubricity. Any tribologists about?