Fixing this Noisy Singer 221K Featherweight Vintage Sewing Machine

I was servicing this beautiful little Singer Featherweight and I noticed it was making a strange noise, unlike a typical silky smooth Featherweight.

I show the troubleshooting procedure and repair of this particular issue.

Subjects covered in this video are listed below in the index.

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Web Site - http://www.institches.co.nz

Index:
0:00 - Introduction
0:51 - The cause is not what I initially thought
2:31 - An interesting find
4:45 - I found the problem
6:57 - Fixing the issue
9:06 - How to properly install a feed dog
12:56 - Back to the fix - explaining how the feed mechanism works
19:36 - Testing
21:13 - Conclusion and thanks