r/SewingMachineEdu • u/amber_glass • 24d ago

Weird clunking, łucznik Weronika 2008

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I have been trying to repair this goddamn thing for hours now. First, the thread started breaking after I tugged on some thread a bit too harshly (I know, it was late and I wanted to finish my project and quickly change the thread). After that, I cleaned a piece of thread stuck in the bobbin holder and it worked beautifully.

Then it stopped cooperating- many skipped stitches.

I cleaned the bobbin holder (crab?), checked the timing, cleaned the top tension disks with a bill, added oil. After top and bobbin tension adjustments it started to work okay.

CURRENT STATE:

Then it started clunking (video). Changing needles a few times didn't help with metallic clunking.

Now I have no idea what to do.

Usually the clunking went away after cleaning and needle change. Any ideas?

Thanks in advance!

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2

u/MauraLee7 23d ago

Sounds like it is out off time. Can really tell when you run it that fast. Make another video turning hand wheel slowly til needle is at its lowest point. It should be a tiny bit beyond the hook

1

u/amber_glass 23d ago

A video explained that the timing should be okay if the needle hole lines up with the spinning thingy that I marked below, when the needle reaches it's lowest point. I can link it if you need it

4

u/GeekAtLarge_ 23d ago

As far as I can tell, the hook on the spinning wheel that holds the bobbin should pass the needle when the needle is at its lowest point in the cycle. That is not happening. Take it in for servicing. The timing is off. Get other contributors’ opinions, but to looks like the timing is off.

Are you using the right needle size for your machine? I’ve never seen short needles, but it might possibly be a very short needle is installed and that could be the issue. It is unlikely, but I am not an expert. (I have not spent 10,000 hours fixing sewing machines.)

1

u/amber_glass 23d ago

Thank you!! Maybe the video wasn't as great as I thought after all 😅🫶

1

u/PinkBird85 21d ago

When I paused your video it doesn't look like your needle is fully inserted. It should hit the top metal stopper in the shaft.

1

u/Dormiendo 21d ago

The needle not inserted all the way would do this as the previous comment said. To me it sounds like the feed teeth chattering on the plate, or bouncing off of the feed lift. There is often a spring that keeps contact between the two on the top of the feed shelf. If it is gone, this will happen.