Still having same problem please help

[bigsig11010]

Seiko stw8/consew 225 that my prior questions have been about. 

I decided to try different materials thread and needle. While I wait on 135x16 size 24 and 25 to arrive.  

So I have size 92 bonded nylon thread with 135x17 size 18 needle and 4 layers of canvas. 

Same issue Im having on leather. The bottom is really loose and not pulling into the material. 

 

Additional pic

[toxo]

You're all the wrong way round. If the brown is the underside either the top tension is too loose or the bottom tension is too tight. When adjusting the top tension only a turn or two at a time. Sometimes just a half turn will make the difference.

[bigsig11010]

Yes the brown is the bottom or underside on this piece. 
 

thank you 

[Pintodeluxe]

I like a size 19 or 20 with 92 weight thread.  Increase upper tension or investigate if your tension assembly is worn out.

I've had tension discs on older machines that literally had grooves worn in them.  To the point that no adjusting would produce adequate upper tension.  If that's the case, replace the upper tension assembly.

Remove the bobbin case.  There should be two tiny screws and a semicircular retainer.  Check for work or bent tension tab.  Replace bobbin case as needed.  If everything looks good on the bobbin case, try decreasing bobbin tension.

[Constabulary]

I keep my bottom tension mainly fairly low and usually I only adjust top tension when needed and when I need a tighter stitch I add more bottom tension and then more top tension. But I almost never touch the bottom tension.

Are you using a knee lifter or foot lifter pedal and you - for what ever reason - rest your foot on the pedal or touch the knee lifter with your knee while sewing? That could cause the top tension release and thread knots appear on the bottom side.

But I rather guess the needle size is too small. Maybe you got your needle thread combination form a chart you found online. The needle / thread charts you find here and there on the www may differ a bit and they are rules of thumb or are based on experience but they can differ. There is no rule that suits for all sewing situations the charts are usually recommendations and not hewn in stone.

[bigsig11010]

 

Thanks to everyone who took time to reply

[Wizcrafts]

1 hour ago, bigsig11010 said:

 

Thanks to everyone who took time to reply

That's how we roll here.

[bigsig11010]

Ok im wondering if should have just stayed on original thread so the progress or lack off could be tracked but. 

 

Back to leather set up. 138 on top 92 on bobbin. Size 23 needle. 

Stitches all janked up and it.looks like the thread is unraveling at the needle. 

 

Im very frustrated and things just arnt getting better. 

Issue with thread unraveling at needle

[toxo]

The needle has to be inserted with the long channel on the left and the shorter scarf on the right, The thread has to be inserted from left to right.

[bigsig11010]

I will double double check but I’m almost certain the needle is in as described and thread is left to right but I will check again