Singer 111w155 stitch length issues

[cadet4x4]

I'm searching old threads to figure out why  my 111w153 longest stitch is 6/in. I've reset everything according to Uwe's videos ( I would be sewing without them). Something caught my eye here above "eccentric gib locking screws weren’t in the groove" . 

Is there a video or diagram showing this adjustment? 

 

Thanks

[friquant]

On 8/31/2025 at 8:54 PM, cadet4x4 said:

my 111w153 longest stitch is 6/in.

Clarifying here...are you able to adjust the stitch length? Meaning can you adjust to go smaller than 6/in ? 

When making the adjustment toward longer stitches, does the adjustment screw stop?

When your needle lands on the material, what is the motion of the feed dog? Ideally the feed dog is stopped front to back motion when the needle lands. Just wondering if you are losing some traction by something else being out of time. 

Perhaps a video of your feed dogs working, and photos of your  stitch length regulator?

[cadet4x4]

friquant,

Yes I can adjust the stitch length, from the longest stitch all the way back to zero. Yes it hits a positive stop rotating either direction. 

Reading a naval manual it mentioned to set the take up at the highest point. Loosen the dovetail cam assembly and rotate forward. The pics and video I'll be attaching soon are after this adjustment, it's yield is about 5.5/in.

 

 

[friquant]

43 minutes ago, cadet4x4 said:

The pics and video I'll be attaching soon are after this adjustment

I'm not able to view the videos. What format are they?

Some people upload to youtube, the embed here. I find that too much work, so I shrink mine using ffmpeg (and convert to .mp4 along the way), then upload directly.

[cadet4x4]

 

https://youtu.be/OezNzJN9LFk?si=lt7xv1-eMcQC6RzR

Fingers crossed

[friquant]

Feed timing looks good. The needle plate is loose, but I assume you knew that, and I don't think it will change the stitch length.

[cadet4x4]

I realize my lower plate is loose. Here is the underside pic of the adjustment made. 

I'd like to verify this entire shaft is timed correctly. Anyone know at a procedure?

[cadet4x4]

Here is left of the drive belt

[cadet4x4]

My arrows don't line up, the collar could be locked into any position

[friquant]

30 minutes ago, cadet4x4 said:

My arrows don't line up, the collar could be locked into any position

Looks like the belt is one tooth off.