The older, the better! I bought a Necchi in 1973. Amazing machine! For decades, I didn't even know it was a Necchi! There are 'plates' all over my machine, that tell me it's model number. Mine is a free-arm. LIkely, yours is older. Look on the right side, or the back. They proudly announce the information you are looking for!
Back when the internet was first made 'Free" by it's inventors, a friend purchased a machine, made it the late 19th century, with a horizontal bobbin. She found it's manual, online! Ergo, you can find your Necchi's manual online!
In that case, I would assume a 'short' in the wiring. Which you could find with a current tester. Hubby has one, not that he has taught me how to use it. Or - My industrial machine has no light, so I've picked up a nifty folding lamp with ? - a light source that provides solar light spectrum. Check at thrift stores, or at any Wal-Mart. Not all that pricey, now.
Not sure as I'm in the states but found a blog where these folks were fixing a Old Necchi.
Bamber Sewing Machines, Eccles, Manchester.
Phone Bambers Today 0161 707 7786.
if that # makes any sense.
looks more like a international # to me. but what do I know.
Cheers form Minnesota USA a balmy -7f.
It looks to me as if it is a low shank and Amazon sells lots of low shank presser feet. I have bought the sets and they work great. They have a 52 piece set for about $32. As for parts, what do you need?
That is generally called bird nesting or thread nesting, or what I refer to as "thread mess." It occurs because of a top tension issue but usually because the thread is not completely seated in the tension disk.
Remove the top thread from your machine. Install a brand new needle. ALWAYS RAISE the presser foot and rethread from the beginning. Set the top tension around the midway point and retest your machine. Adjust the top tension until the top and bobbin threads meet in the middle of the fabric. (Tighter top tension pulls the bobbin thread up. Looser top tension, the bobbin thread pulls the top thread down.)
Other helpful hints: Avoid old or bargain bin threads. Install a brand new needle every 8 hours of sewing or whenever the needle hits something hard like the needle plate or presser foot or gets bent or damaged. Make sure the needle, thread, and fabric are compatible, ie do not use ball point needles on woven fabrics, do not use a needle which eye is too small for the thread, etc.
Quilting with a walking foot is technically (IMHO) not free motion quilting. With a walking foot, the feed dogs are still activated so they can work in conjunction with the walking foot to (hopefully) prevent wrinkles in the fabric sandwich. Quilting with a walking foot is more suited for stitching in straight lines or stitching in the ditch. In this mode, you would not pull or push the fabric as the machine should do that.
FMQ Free Motion Quilting requires the operator to manually move the fabric sandwich under the needle. There are some sewists who do not use a presser foot, however, if you value your fingers, it would be best to use, at a minimum, a darning foot. Darning feet and free motion quilting feet are shorter than a regular presser foot so it does not make contact with the feed dogs or the needle plate. The space between the needle plate and darning foot is what allows a sewist to maneuver the fabric. Usually, the feed dogs are lowered when performing FMQ, but there are some sewists who don't. It's probably a matter of preference.
Most older sewing machines included a darning foot in the accessory kit. Newer sewing machines may have several presser foot options for FMQ. In addition, there are many FMQ presser feet available on the market that can be ordered to fit your specific machine, ie Big Foot. Nancy Notions Trusted by sewing enthusiasts for more than 3 decades
There are a wide variety of FMQ presser feet, some have springs so they "hop" on the fabric, some are metal, others are clear plastic, some are full circles, others are not round or may be open toe. There are also special presser feet that have a thicker base made for FMQ with rulers--the thicker base helps prevent the ruler from slipping under the presser foot and being struck by the needle.
There are tons of tutorials for FMQ. Just as there are many different methods, the right method is the one that works best for you. There are also lots of rules, but rules are made to be broken, so don't let someone else squelch your creativity. Quilt to please yourself.
Above all, PRACTICE, PRACTICE, PRACTICE. I have a small whiteboard that I practice drawing designs. Muscle memory will make FMQ easier. There is also the need to get a comfortable sewing speed along with the speed at which you move the fabric. If you are breaking needles, your fabric movement is probably too fast for the sewing speed. Also, practice moving the fabric while keeping the sewing speed consistent.
Good luck! Remember, those awesome FMQers didn't learn it overnight. Many have been doing it for over 20 years, so don't be overly critical of yourself. You'll see improvement with every project you complete.
I have a Necchi Logica (Kenmore Sensorsew) and it was making a grinding noise, I bought new brushes, bought a technical repair manual for my machine. But, it needed a new motor, so if it is making a grinding noise, it is because the motor seized up and broke the pulley for the belt. No one would fix it because it was too old, I bought it new in 1988. Well, I kept watching on ebay and found a used motor, that was the answer. If, that is your case and you really love your machine be patient and find a motor, but just be sure that you don't spend more than it is worth. Sometimes, those "old girls" can be had for a reasonable price for the whole machine. I see on ebay, a few for sale at around $100 but shipping is $50 some dollars. They are heavy, and they were made in Italy, so kind of nostalgia.
What is happening that makes you think the timing is off? Usually, timing gets knocked off when the needle strikes something during stitching. The symptom: top thread will not pick up the bobbin thread.
Be sure to install a brand new needle (make sure it is installed facing the correct direction). Remove the threads from the machine. ALWAYS RAISE the presser foot when threading the top thread. Verify it is threaded correctly top & bobbin.
If you still think it's out of time, search for sewing machine timing.