bkay

I'm working on T&S to get them ready for the quilting kids. The 778 still sounds like a thrashing machine, but it is sewing ok. I started on the 756 which is the same machine except it's not a portable.

I was using this machine last year for piecing. It slowly almost died. It started to hesitate and then the handwheel got hard to turn. I worked on it and posted on it and worked on it some more. At the time, Terry of Tandtrepair.com said it was the cracked cam stack that made it hard to turn. It doesn't exactly have a cam stack. It has no built in cams, just the removeable ones. I finally got it working and moving by just oiling the "fool" out of it. It's been in the back building since then. Now it's back to the same old problem.

Joe M. has posted that a cracked cam stack does not make the machine inoperable. The plastic under the place you put the cam could either be cracked or a two piece collar. The gears I can see all look fine. I did some more clean and oil. I'm better at that since I worked on that 401 with the stuck cam stack, but it doesn't seem to help.

What it actually does is bind at the highest point of the thread take up lever. When you get past that point in the rotation, it loosens up.

Any ideas of what I should be looking for?

bkay