Quote:
Originally Posted by Union Wheels
I understand your reasoning with regard to the ingress of water, but was wondering that if, the hard particles you have discovered, accumulated under the rubber sleeve at the pointed end of the push rod, would this prevent the push rod returning to it original starting point over a period of time as the deposit built up.
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That would presuppose all failed stats had the hard solids always deposited in the same place, at the far end of the piston. If these solids don't melt at the standard temperature, then there's less of the 'good' stuff to propel the piston. As I said, it's swings and roundabouts. I suspect these intractable lumps are the result of hydrolysis of the wax by water getting into it. It's only a proposition though, and without access to the appropriate analytical tools, we'll never know. An offer of analysis abroad came to nought.