15x1 needles are now called 130/705H or standard home sewing needles.
This page has more than you need to know about needles. Great resource though.
And this one if you have a random needle laying around. There are also other makers charts. www.schmetzneedles.com/pdf/SCHMETZ_Color_Code_Chart.pdf
Ok. I'll try that stuff tomorrow. Meanwhile I'll put the feed dogs and throat plate back together. Load up a new bobbin and give it another go. Looking at a way to clamp the switch to my tray table work bench. I really need the get to figuring out as way to get that cabinet up here.
Because I'm a glutton for punishment, I ran out to the cold garage last night about 11:30 and grabbed the new thread. Wound a bobbin with it.
Looked in the other machine, found some new needles. One single needle was the exact length. The others were a bit longer. I'll snap a few more pics when I get home from work. Not really sure why she has 2 different size needles in with her machine both "Kenmore" branded.
When I tried the same length needle, I got the same results. That being said, of course I would try with the other length needle. And it worked turning it by hand. The needle wasn't hitting anything, no bad noises. It picked up the bobbin thread right away on the first try.
I was able to get it to stitch just fine by hand. So of course I would try it with power. And I was able to run about a 2" stitch with it, then the thread broke. So I played with the tension a bit and tried again. Folded over the edge of an old washcloth I use for a rag, and was able to stitch the entire length with not a single problem. Again, all this with the slightly longer needle.
During some down time at work I'm going to try to investigate what the actual needle is supposed to be. I'd like to use whatever I'm supposed to that's proper. The just using "what works" often ends poorly. The book says to use 000, 00, 0, 1.etc needles. I can snap a pic of that page too. Doesn't make sense to me, those are sizes of course, but doesn't give a real style number.
When I bring up the thread for a new bobbin I don't hold the threads at all. I leave a long tail from the eye and leave it loose. I turn the flywheel for one complete needle cycle (tdc to tdc). Then I pull on the tail to bring the bobbin thread up through the plate and trim the tails to the appropriate length. Anything that obstructs the loop of thread as the needle rises will adversely affect the stitch formation.
I may be slow... But I sure am gimpy.
"Bless you child, when you set out to thread a needle don't hold the thread still and fetch the needle up to it; hold the needle still and poke the thread at it; that's the way a woman most always does, but a man always does t'other way."
Mrs. Loftus to Huck Finn
We Don't Sew... We Make Gear! video series
Important thread injector guidelines especially for Newbies
Bobbin Tension - A Personal Viewpoint