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Home » Sewing » Sewing Techniques

Sewing Machine Tension - Top 10 TIPS

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It’s tension time and you feel the stress of not being able to get the sewing machine tension quite right. The more you react to the machine’s performance the tenser you become.  It’s time for a checklist and when you have gone through all the points your tension will have disappeared and your machine will be performing beautifully.

sewing machine tensionPin
Sewing Machine Tension

Contents

  • What is Perfect Sewing Machine Tension?
  • How to Fix Sewing Machine Tension Problems
    • TIP #1: NEEDLES
    • TIP #2: CORRECTLY THREADED
    • TIP #3: DIRT
    • TIP #4: DIALS
    • TIP #5: THREAD QUALITY
    • TIP #6: MATCHING THREAD
    • TIP #7: TOP THREAD CAUGHT
    • TIP #8: MACHINE DAMAGE
    • TIP #9: BOBBIN WINDING
    • TIP #10: BOBBIN CASE
  • How to Adjust Sewing Machine Tension Dials
  • More troubleshooting Articles
  • If the sewing machine tension is still out?
  • Sewing Specialty Fabrics

What is Perfect Sewing Machine Tension?

Perfect sewing machine tension occurs when the top and bottom threads are perfectly balanced. That means you shouldn't see any little loops on either the top or bottom of your fabric and the stitching should look even on both sides.

While you may be tempted to go straight to the tension dial on your machine, there are numerous other issues that can put your tension out beside the dials. Always check these first before playing with the tension dials.

sewing-machine-tensionPin
Sewing Machine Tension

How to Fix Sewing Machine Tension Problems

Sew...What can you do?’

TIP #1: NEEDLES

Check the sewing machine needle and replace it if necessary. A bent or blunt needle can cause your tension to go out. Also, check it is correctly inserted into the needle holder. The flat part of the needle should be at the back. Needles should match the type and weight of your fabric. For example, leather should be sewn with a leather needle in a heavy gauge. (Sewing machine needle sizes)

TIP #2: CORRECTLY THREADED

Make sure you threaded the sewing machine correctly. If in doubt, always rethread both the top thread and bobbin. The bobbin should be wound evenly with no loops. Make sure the thread has gone through the tension disks correctly.

  • How to Wind a Bobbin
  • How to Thread a Sewing Machine

TIP #3: DIRT

Have a quick look for any fluff caught in the wheels, throat plate or bobbin. Even just a little bit of fluff can upset the whole machine. A small stiff paintbrush can sweep your machine clean. Fluff can also accumulate in the eye of the needle. (How to clean a sewing machine)

TIP #4: DIALS

Check all your dial settings are correct and haven't moved from their regular position. You never know who may have been playing with the machine dials and settings. All those dials look very inviting to children, especially mine. Most sewing projects will have the tension dial set to 4. Check your sewing machine manual for the best setting for your fabric.

TIP #5: THREAD QUALITY

Change the thread you are using and check it is a quality brand. Cheap brands can be uneven and break easily. Many sewing machine problems can be helped by using better quality threads. Good brands of thread include Gutterman, Coates and Rasant.

TIP #6: MATCHING THREAD

Both the top thread and bobbin should be the same brand, quality and weight. If they are mismatched it can cause tension problems. Different colors should not make a difference as long as they are the same type. (Types of sewing thread)

TIP #7: TOP THREAD CAUGHT

Check the top thread is not caught around the base of the spool. If it gets caught it will cause the top tension to become too tight. Also, check for any knots or tangles in the thread.

TIP #8: MACHINE DAMAGE

Check the throat plate is clean and has no unwanted nicks or damage. Sewing over pins and needles breaking can cause nicks in the throat plate that can snag the bobbin thread. If small, a technician can buff the nicks smooth. Otherwise, buy a new plate.

TIP #9: BOBBIN WINDING

Check the bobbin is wound evenly and not too tight. Check it for snags. (How to Wind a Bobbin)

TIP #10: BOBBIN CASE

Finally, check your bobbin is inserted correctly. Some machines have an adjustment screw on the bobbin case. Check your manual and adjust accordingly.

How to Adjust Sewing Machine Tension Dials

Still feeling tense? If these quick fixes didn't work then it is time to adjust your tension dials.

If all the above is still not giving you a nice even stitch, sew a test on a scrap. Use a scrap of the fabric you are planning to sew as different fabrics will need different tension adjustments.

Loops at the back mean the top thread tension is too loose. Increase tension (higher number) with small increases at a time. Keep checking till you get it right.

Loops on top of the fabric mean the top thread tension is too tight. Decrease tension (lower number) with small increases at a time.

sewing machine tension chartPin
Sewing Machine Tension Chart

If all else fails, release your tension and have a laugh at a little joke along the way. Thanks to Sandy who posted it on a sewing forum.

A Sewing machine walks into a pub.  The waiter stops and says….Aren’t you a famous Singer

More troubleshooting Articles

  1. Sewing Needle Keeps Breaking 
  2. How to Clean a Sewing Machine
  3. Sewing Machine Thread Keeps Breaking
  4. Sewing Machine Skipping Stitches
  5. Seam Puckering when Sewing
  6. Sewing Machine Manuals
  7. Sewing Safety Tips for Beginners
  8. Sewing Machine Troubleshooting
  9. Sewing Machine Tension
  10. How to Thread a Sewing Machine

If the sewing machine tension is still out?

If your sewing machine tension is still not correct, it is time to take your machine to a technician. Like cars, sewing machines need regular tune-ups and services. Before you head off, do one last check and try sewing a different type of fabric.

Sewing Specialty Fabrics

  1. CHIFFON – Sewing Chiffon
  2. BATIK – What is Batik
  3. CANVAS – Sewing Canvas
  4. COTTON – Sewing Cotton
  5. DENIM – Sewing Denim
  6. FELT – Sewing Felt
  7. FUR – Sewing Fur
  8. KNITS – How to Sew Stretch Fabric
  9. INTERFACING – Types of Interfacing
  10. LACE – How to Sew Lace
  11. LEATHER – Sewing Leather
  12. RAYON – Sewing Rayon
  13. SHEER – Sewing Sheer Fabrics
  14. SILK – How to Sew Silk
  15. THICK – Sewing Thick Fabrics
  16. VELVET Sewing Velvet
  17. WOOL – Sewing Wool
  18. FLEECE – Sewing Fleece
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Reader Interactions

Comments

  1. Treasurie

    April 18, 2021 at 8:50 pm

    Check the tension disks, quality of the thread for knots etc. Thanks for reading.

  2. Runa

    January 17, 2021 at 6:33 pm

    Hi, I have a leriva sewing machine. When u start to sew the top thread keeps on breaking. It's so frustrating please help.

    Many thanks

    Runa.

  3. Treasurie

    December 17, 2020 at 9:15 pm

    Hi Helen, it is hard to know but yes it does sound like it is something in the tension plates not working correctly. I'd return it for the seller to have a look. You say you are a seasoned sewer so I'm sure threading is not the issue. All machines are roughly the same for threading.

  4. Helen robertson

    December 17, 2020 at 6:35 pm

    Bought a child’s sewing machine for Xmas. Threaded correctly and sews perfectly but when seam stitched, needle and presser foot lifted, unable to pull upper thread Free to allow cutting threads. Too tight between tension plates. Releasing tension pressure results in unlocked stitches. Just pulling snaps thread and would break needle. Do you think the tension guide is faulty before I attempt to return machine. Seasoned machine sewer.

  5. Minny

    September 06, 2020 at 12:29 pm

    thanks so much. this is exactly what I was looking for. I really love the guide. I tried to make one of my own and it was no wheres as good as this one. I also have the same problem with the tension being fine on the top and my bottom stitch being loose and sometimes both being loose. am going to print everything you wrote and have it next to my machine. Good stuff here. Thanks again. Minny

  6. Treasurie

    August 29, 2020 at 10:43 pm

    Start with rethreading the threads both top and bottom and checking that you are putting the threads through the tension disks at the top and the groove at the bottom.

  7. Denise

    August 25, 2020 at 9:41 pm

    I have the Elna 1000 sew 75 I keep getting bird nests and lose bunching from the top cotton. On the under side of my fabric when I sew. I am a beginner and very eager. Please help.

  8. Treasurie

    August 23, 2020 at 11:19 pm

    Check that the bobbin is threaded through the tension groove. I rethread both top and bobbin.

  9. Regina Mhango

    August 23, 2020 at 1:31 pm

    My bottom stitch is loose but top stitch is normal.What should I do?Am using old manual singer sewing machine.

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