You can find your manual here: http://www.singerco.com/accessories/instruction-manuals
Welcome to the Quilting Board!
You can normally find your spring at Sew-Classic: http://www.shop.sew-classic.com/Pres...675-170067.htm for $5.95. I just noticed her page said she was temporarily out of stock.
Can't hurt to email her for ETA if no one here has a spare.
Joe, thanks for suggesting Sew-Classic.
Treadlep, you are right, that spring is inside the metal tube on my 99. I had adjusted the knob screw but saw no results. After reading your post I removed that screw and poked on the rod and it barely moved. So I pulled the rod out and poked inside the tube with a dental pick. The spring felt like it was jammed, or caught, inside the tube, so I gently pushed and pulled at it until I felt movement. I replaced the rod and screw and now there is more pressure on the foot. I just wasn't happy with how much "play" the fabric had under the pressure foot and didn't think it was because the machine is being handcranked. Thank you for your help!
So, I spent the day on my new to me Elna Supermatic and it pieces very nicely. I posted it a few pages back but here it is again. And guess what? I'm getting two more of them tomorrow! Isn't weird how they come at you in multiples! I've been wanting one for a while and now suddenly to have 3? :>