Get the Red Out (Down) in that Motometer

[leo]

I have a nice original Motometer with the mercury all the way to the top with no gaps. I've tried tapping the stem on a tire to no avail. Any other ideas about how to get the mercury back where it belongs that work?

[Jason in TX]

Tie a string around the motometer so that it hangs top side up. Then spin around above your head like a helicopter. This centrifugal force will push the red down into the base.

[Gary WA]

Did you try to heat with boiling water then cool water on the stove?www.whidbeymodelaclub.com

[Logan]

Originally Posted by Gary WA

Did you try to heat with boiling water then cool water on the stove?www.whidbeymodelaclub.com

If you go strait from hot to cold, you will crack it.

[Jason in TX]

Another similar tip I read is put it in a sock and spin it around. Same idea as the string.

The concept is exactly the same as when you used to have to shake the old thermometers back down after taking your temperature. Use gravity. Spinning it around on a string just helps you not kill your arm by doing the thermometer flick.

[Afordman31]

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Originally Posted by leo

I have a nice original Motometer with the mercury all the way to the top with no gaps. I've tried tapping the stem on a tire to no avail. Any other ideas about how to get the mercury back where it belongs that work?

Leo
My Dad said to put it in the freezer overnight than tap it on a tire. He said that works.

[leo]

The freezer trick worked very well. Thank you.