Miriam, I am just now working on my 319. I thought mine was dirty, but yours was much worse! [ATTACH=CONFIG]502266[/ATTACH] I may have taken mine farther apart than you did... I removed that little stitch selector and have cleaned behind it. I was tempted to take off the bight control to clean those knobs, but was adamantly advised not to do so by people on the VSM Facebook page. I've removed the top plate, hand wheel, spool plate, and the motor.
Fortunately the electrics, plugs, and cords seem solid and intact. I tried the motor & machine when I bought it, but there was no needle so I haven't been able to sew with it. Fingers crossed. But I was happy at being able to do a deeper clean by getting the pieces off. I'd show you another picture of the in process work, but for some reason nothing else will upload.
So glad to find this thread solely devoted to the 319!
Best, Ellpea