Having thread breakage probelm and also can't track down the correct bobbin to use on the Elna 2005

Sounds like possibly more than one problem.
Why is my thread breaking

https://www.sewhere.com/why-is-my-thread-breaking-how-to-avoid-thread-breakage-at-your-sewing-machine

Sewing Machine Problem 1 Thread Breakage

If the top thread is not picking up the bobbin thread, it's possible the machine has been knocked out of time. Did the needle hit something or break recently? You can search for sewing machine timing or take it for service.

bunching of thread under the material is an indication of insufficient tension of the needle thread
increase the needle tension until the threads meet at the center of the materialbeing sewn

There could be several reasons for thread breaking.

1) Incorrect threading. A guide has been missed or the thread path is incorrect. Consult the owner's manual. Remove all the thread and rethread from the beginning.
2) Tension is too tight. Tension setting standard is around the midway point between high & low number. Also check that the bobbin tension has not been set too tight so upper thread is being pulled to the underside of the fabric. Make sure the bobbin thread is wound smoothly on the bobbin--try a different bobbin. To insure the thread is seated completely in the tension disk, Always Raise the Presser Foot when threading the machine.
3) Install a brand new needle. Make sure the needle size/type are compatible with the thread and fabric.
All About Needles
4) There could be burr or nick somewhere that is catching the thread. Make sure the thread is not hanging up on the slit of the thread spool. Sometimes the thread will loop around the thread spool causing thread breakage. Check the needle plate and the bobbin area. If there is a small nick, it usually can be gently smoothed with a fine emery board. If not, then a technician's assistance or a replacement part may be required.
5) Void old or bargain bin threads. Spend a little extra for good quality sewing thread and increase the chance of sewing success.

Sewing Machine Problem 1 Thread Breakage

NMSU Checklist of Common Machine Troubles

If the issue is not resolved, service is probably necessary.

...

OIl on the bobbin will cause you problems as it affects the thread feed. Clean the area and check the bobbin thread rension.

try changing the needle --one that is correct for the fabric being sewed
try a different thread
make sure the bobbin is inserted correctly into the bobbin case
and turned the right way.
make sure the top thread has not come off the thread take up lever

try rethreading the machine top & bobbin
put in a new needle
make sure the bobbin is not over wound
make sure the bobbin is turned the right way in the bobbin case
make sure the bobbin case is inserted correctly in to the machine
if the machine still doesn't pick up the bobbin thread it's possible that
the machine is out of time

try changing the needle
try rethreading the machine top & bobbin
make sure the bobbin is inserted correctly into the bobbin case
& that the bobbin is turned the correct way

try changing the needle
if changing the needle doesn't help then it's possible that the machine
is out of time & needs to be checked at a repair shop

Firstly, have you got an Elna metal bobbin? it should be solid on the bottom and have 7 holes on top. It is essential that you always use it this way, wind it with the holes on top and load it into the bobbin holder the same way.


Have a look at the image above, you need to load the bobbin in and click the thread into the tension spring so it doesn't lift back out when you pull the thread upwards. There should be an audible click as it goes in.

If you can't get it right or this image is just too small, feel free to email me and I'll send you the image and talk you through it, I have a TSP machine too. [email protected].

Also, check my tip on bobbin winding here http://www.fixya.com/support/r10598580-winding_bobbin_correctly it is important to get a good even tension onto your bobbin as you wind the thread on, you may need to manually add some tension to the thread as it winds off the spool, as I've described in my tip. I sold these machines for Elna and customers would bring them in complaining of problems with their machine. Almost aways, it was the needle in backwards, bobbin upside down, thread/lint buildup in the bobbin race or badly wound bobbin that was the problem.

Hope this helps you Gaylene, but if not, please email, I may be able to send you the relevant manual pages.

YOu can down load a manual from here http://www.arizonaexpressionz.com/elna_instruction_manuals/Elna7000.pdf

Just remember to click the bobbin thread into the tension device correctly and hold the two threads behind the pressure foot when you start each seam - Elna top loading bobbins give great stitch quality but you just need to keep stray threads out or they'll jam up.

Also, you must use the Elna plastic bobbin that the manual specifies for this machine - the 5000, 7000 and 9000 were Elna Tavaro Switzerland's first foray into computerised machines and first released in 1986.

Also, please check the manual when you go to buy twin needles, there are two types now as computerised machines usually need the twin needles offset from the shaft position. They have red or black plastic block between the shaft and the twin needles - I think you need the red ones but just double check the manual to make sure. And you can't do all the wide stitches with a twin needle as it will strike the foot.

Hope this helps a little.