Problems using heavier thread & a little story

Nov 19, 2006 7 Replies

I bought some "heavy duty extra strong for jeans, dual duty plus" thread to use on the hems of jeans that I'm shortening. I cannot get the tension right, it looks horrible. Is there some trick to this? I don't want to wreck my machine, I think I'll have to go back to using plain old thread. Any suggestions or warnings? I have a Singer 401A that was miraculously brought back to life courtesy of your forum and Ron Anderson's detailed and illustrated instructions.



Oh, a bonus. A friend of mine dropped by in the middle of a roman shades project, and noticed my machine. She said that she had her mom's old machine in the car, she was going to get rid of it, and it looked similar to mine. She brought it in the house, it'a 403A and she gave it to me! She never ever used it. She was on her way to throw it out! It did have the sme problem my own machine had, so it was great that I knew exactly how to fix it.



I gave it to my daughter, who is THRILLED of course. She was using a horrible plastic Brother machine she bought at Wal-Mart. Joan



I have had the same difficulty, no matter what size needle I used I could not get the heavy duty thread to feed properly through the needle, and no fiddling with the tension improved matters.

My solution was to use the heavy-duty topstitching thread on the

*bobbin only*, then *loosen* the bobbin tension (turn that tiny screw on the front of the bobbin case 1/2 turn *counter clockwise*), and use regular thread in the needle, but *tighten* the needle tension to 6-7. Test on scraps, to get the right combination of tension.

I stitch jeans hems with the wrong side uppermost (so I can see the edge of the hem), so the bobbin thread is on the *outside* of the hem. If you sew the hem with the outside uppermost, you would want to reverse/ignore these instructions. Remember when you are done to re-set the bobbin tension to normal.

HTH,

Beverly

You may have a combination of needle and thread problems:

Use a size 90 or 100 Jeans needle Use ordinary thread in the bobbin Use a longer than normal stitch - 4-5 to the inch Adjust the upper tension to get a balanced stitch

Way to go! :) From novice to expert, and now to sewing machine rescuer in two 7-league boot strides! Well done you! :D :D

The thread is too heavy for the machine. You can try over tightening the top tension to maybe 9 but it is a clearance problem. See the thread has to pass through very tiny areas and if to thick will hang up.

That'd be pretty heavy for my old 301.... I'd use it on the bobbin, if anything. A couple of possibilities: a jeans or embroidery or quilting needle (all slightly different eye lengths and points), size 90-100. Or try threading with two spools of ordinary thread. Lengthen the stitches to 4-6/inch.

I decided to use plain old thread, I was spending way too much time on a $14.99 pair of jeans! Thank you all for your suggestions and tips. I have NEVER adjusted the bobbin tension and am scared to death to touch that screw! I do sew the hems with the wrong side uppermost, so I can see where I'm going. To make matters worse, the jeans have a "touch" of lycra, which makes the task even stickier. Jeans are done, in the washer. Until next time.....

LOL! It's not going to bite you. ;-> If you turn it a "quarter turn" one direction, all you have to do is remember to turn it a quarter turn back when you want to return to the original setting. Left is *loosen*, right is *tighten*. Really, sometimes adjusting the bobbin tension is the only thing which works.

Congrats!

Beverly

One suggestion that comes up is to get an extra bobbin case and adjust the tension. Mark the bobbin cases with nail polish. So you can just switch bobbin cases when you need the looser tension, with no fear of messing up the original. Of course this only worth while for something you will be doing from time to time.

Joy

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required