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Old 07-19-2022, 05:11 AM   #8
mhsprecher
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Default Re: Original metal valve stem?

Quote:
Originally Posted by nkaminar View Post
I have never used these. Do they seal well? Do you need to use some sort of adhesive or sealant? Why were they used originally? Could they be used to fix a tube that had a bad rubber valve stem?
They seal well if installed properly. An adhesive or sealant isn't necessary, but I bet some people use one.

Not sure why they were used originally, but I would guess that it was because the processes to make a rubber valve stem did not exist or someone had not invented that yet.

Can they be used to fix a tube that had a bad rubber valve stem? Probably. It depends upon where the problem is. You remove the original stem entirely. There must be a video of it somewhere. There was a discussion of how to do this at the MARC meet valve stem seminar in Morgantown in June.
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