My abject apologies for seeming to have abandoned this thread. Silly little thing like a heart attack got in the way of progress on this project. All's better now and I'm back to it. Decided that since the only thing I hadn't touched on it is the bobbin case, I'd see if there was possibly a problem there. Removed it and found a whole squirrels' nest of thread. Cleaned that up, replaced it and it sews like a dream. I'm eternally grateful for all the assistance I have received and if I ever learn enough will attempt to pass on the good karma
