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Cleaning old clock springs


HectorLooi

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Just put the spring in petrol and clean with fine wire wool, old grease and stubborn oil will easily come away. Then dray with a clean cloth. The ends of the springs will show a blueish colour this is because the end has been heated to stamp out the hole, you will see that at the arbor end as well. 

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I see springs all sorts of colors, blue, purple, brown, or just plain steel color. It's from the heat treatment, and depending how they do it determines the color. It's normal and no need to remove it. Older stuff will tend to be a dark blue, and often you can find the maker's name scratched into the blue on the spring end if the spring is still original.

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