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Borther ce4000 I just bought this machine and have tried, tried again to get the stitch to be even. The bottom thread is just to loose. I have rethreaded several times thinking I was doing it wrong. Rethreaded the bobbin and inserted it the correct way and even backwards nothing works. And yes I have adjusted the tension knob from 6 to 1 in small increments and still no luck Help, I am in the misddle of a project when my old machine finally broke. I am sewing duck cloth and using dual duty thread.

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Re: Borther ce4000

Try taking a small screw driver and tighten the little screw on the bobbin cover, just a little at a time, then try your machine again. If still too loose move it a little more. If the top thread pulls you have it too tight, back the screw off a little. This should help !

Posted on Feb 08, 2008

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Bottom thread is still loose even if i try to balance the tension, how do i balance the thread tension?

You bobbin tension CAN be adjusted. First, thread your machine with different colors in the top and bobbin, set your top tension at its default, and run a line of straight, and then a line of zigzag stitches, and compare the results at the top and bottom. You will be adjusting your bobbin to your top tension. If the top tension looks like a straight line instead of stitching and the zigzag looks like "chicken tracks" instead of a zigzag, but the bottom looks like a zigzag, your bobbin tension is too loose.

Remove the bobbin case, and locate the straight-slot screw. There are generally two; one is a Phillips and one is straight--you want the straight one. Leave the other alone.

The rule is "lefty-loosy, righty-tighty." If your stitching displays the above symptoms, it needs to be tightened, so turn 1/4 turn to the right--no more--then test again. You will need patience, but don't turn more than that. It is easy to do, but if you don't do it systematically, you can make things worse, and very slight adjustments can alter the stitching significantly.

Apr 15, 2015 | Singer Sewing Machines

1 Answer

My Bernina Bernette 65 has a problem with the thread bunching up every 10-15 stiches on the bottom. Some of the thread stitches on the bottom of the fabric are in a straight line, and then the thread will...

try a new needle--one that is for the fabric being sewed
then try to adjust the top thread tension again, if the stitches remain loose and the tension won't adjust then the tension knob needs to be checked to see if there is something wrong with it.
also check to make sure the bobbin is inserted correctly into the bobbin case, if the bobbin is not turned the right way in the bobbin case the sewing machine will not stitch correctly.

Aug 05, 2013 | Bernina BERNETTE 65 Mechanical Sewing...

2 Answers

My thread on the top of the material is stitched fine.. the bottom stitch ballons

try changing the needle
rethread the machine use every thread guide
check to see if the thread has come off the thread take up lever
clean under the needle plate & in the bobbin area for lint
if none of these suggestions work, then the machine needs to be
checked to see if there is a problem with the timing

Sep 23, 2012 | Juki Sewing Machines

2 Answers

Thread tension

try changing the needle first--make sure the needle is the correct one for the fabric being sewed.
if you've adjusted the top tension & the bottom stitch still looks the same
it's possible that the top tension dial is needing to be checked to see if it's
working correctly

Apr 17, 2012 | Brother CE4000 Computerized Sewing Machine

1 Answer

The bottom thread is too loose

go to and download one for free

May 21, 2010 | Brother CE4000 Computerized Sewing Machine

1 Answer

Top stitche is to tight and bottom stitche is to loose

Meaning you have adjusted the tension for the top thread as well as the bobbin?

Use two distinct colors of thread - one for the top and one for the bottom.

Thread the machine with the presser foot up.

The two threads should meet in the middle of the stitch with neither obvious on the opposite side of the seam.

Set the top thread tension to 4 and adjust the bobbin as needed.

May 01, 2010 | Brother CS6000i Computerized Sewing...

1 Answer

How do I adjust the bottom thread the stitches are too loose?

if stitches on top is loose then remove bobbin case and tighten small screw on it. if stitches on bottom of fabric is loose then tighten top thread tension.

Nov 03, 2009 | Kenmore Drop-In Bobbin 16231 Mechanical...

1 Answer

Loose stitch

Welcome to FixYa. I am the sewing machine expert that chose your issue to solve.

When everything seems to be working fine and an occasional stitch is get it is.......the needle!

It seems impossible, but the needle is the most neglected part of the machine. The one you are using could be slightly bent or have a slight burr that you won't see with the naked eye. Also, needles, especially in an embroidery machine (which work their buns off), are only good for about 8 hours of cumulative use. I would say that an embroidery needle should be retired after 3 or 4. They get dull like a razor blade which can cause enough drag to create a timing issue that's barely perceptible.
Welcome to FixYa! I am the sewing machine expert that chose to help you with your issue.

There are really only two things that can cause bottom (note: remember that problems with the bottom thread, almost always comes from the top and not the bobbin. Bobbins rarely need tension adjustments). These two things are:
  1. An area was missed when the machine was threaded (most machines have an arrow at each area on the thread path where the thread MUST run or the stitch on the bottom will be sloppy. Threading can be tricky and even the most experienced miss once in a while.
  2. The tension adjustment mechanism in the thread path. If the thread is not properly through this area, the thread on the bottom will be sloppy or if, threaded properly, and the tension is set too loose, the stitch will be sloppy. If the tension is set too tight, the bottom thread will be tight and pucker the fabric.
It is counter-intuitive that problems with the top tension cause problems with the bottom stitch but it sure will.

So try it and see if that helps.

Thanks for using

P.S. - If you find that the solution/answer I provided led you to, or resulted in a fix, please close the ticket with a FixYa! rating. I would be very grateful for your show of appreciation.
If it hasn’t, please do not assign a rating just yet. Please post back as to what steps you took, results, etc, and I will try to assist you further.

Jan 31, 2009 | Bernina Bernette 75

2 Answers


you have your thread tension too tight that's why it is pulling the bottom stitch all the way through it looks good from the bottom but not good on top. Its pulled the stitch all the way through the material.
I had my own upholstery shop 18 yrs and tension gets you every time.Just loosen the top tension.

Jan 18, 2009 | Euro-Pro 8260 Mechanical Sewing Machine

3 Answers


If the top stitch is loose, then you need to tighten the bobbin tension: if the bottom stitch is loose, tighten the top tension. Hope this helps. It could also be the size needle and thread you are using for a particular fabric. Different fabrics require different notions.

Mar 13, 2008 | Sewing Machines

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