Elna Supermatic friction wheel replacement troubles
I just replaced the friction wheel on my elna supermatic with one of the new ones from White Sewing Center (the old one didn't have a flat spot, it was actually broken in half, and looked like someone tried to fix it with hot glue and wire, which held up for about half an hour). The machine runs again, however, it seems like the friction wheel isn't "catching" properly- if I start the machine fast, the motor runs but the machine doesn't. I have to start the machine slowly, and it takes a second or so for the needle to actually start moving. What could be causing the new friction wheel to "slip" like this? (fwiw, the old wheel didn't slip at all, until it cracked in half of course)