Re: Brass shaft loose in brass bushing.
Immersion is not an option, as the shaft is bonded to the knob.. I would also need to protect the cross-drilled hole as this is very tight already. The bush is bonded into the meter so any attention to that is risky...however i recall that it's possible to reduce a bore diameter slightly to take up clearance (is this achieved by honing or is there another term for it?)
I was even contemplating silver dip but suspect it would take yonks to build up enough metal.
The wear is mainly in the bush rather than in the shaft- fitting an alternative shaft (in good condition) does not reduce the clearance.
Dave
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