Fixing an old thermometer and humidistat

[gjz30075]

I've got a neat, somewhat old wall thermometer, the kind with the sweep needle and a humidistat (sp?) gauge on the same face. Neither are reading correctly.
Both needles are on bimetallic springs that look a bit rusty. Is there anything that will revive these springs to make them work correctly?

I was thinking of taking it apart and replacing the springs from a new thermo and humidistat from Walmart but the sweeps aren't the same.

Any ideas?
Thanks

 

[gjz30075]

Thought I'd bump this for another review.

 

[kpilot]

Maybe you could try a clockmaker.

carl

 

[kbs2244]

A clock repair guy is a good sugestion.

I would try a good blow out for dust and such, then a spray of carb cleaner for any gunk, then some WD40 for a lub first though.
Use a Q-Tip with the carb cleaner to rub the rust off the springs.
Those springs tend to bind up from rust and will not rub well on themselves.

 

[gjz30075]

Good suggestions! Thanks.