Morse 4300 repair
 

Are you sure the timing is adjusted correctly? Not picking up the bobbin thread is a sign it's not timed right. Is the needle in correctly? This could also be the problem. I don't understand "the tension pops out". If you could give more info. it will help. I have a Morse that's only a few models away from yours.

The tension does not set with a screw it just slides into an opening, if the presser foot is in the down position it is secure when the presser foot is raised it will pop out. What model do you have. Yes the needle is in the correct position & its new. I have the manual and it appears everything should work.

I have a Morse Fotomatic but I think my tension is different than yours. I'll take a look and get back to you if I see anything that might help you.

Not picking up the thread could be from it being threaded through the needle backwards (left to right or right to left). if you open the face plate look and see if you can put a drop or two of oil on the tension assembly area. That part might be a little dry and making it want to pop out on you. Also if you take a hair drier and warm that area up and it shoud soften any goo or gum that might be stopping it from working properly.

Billy

This is my model. http://www.quiltingboard.com/vintage...20-t53840.html

http://www.quiltingboard.com/vintage...g-t182255.html Some times there is not an off hand fix. Here is a resource for you - maybe it will help you figure it out. If not I would be happy to answer questions.

Miriam is REALLY good at getting these old girls working again!! :)

I picked one up the other day and have yet to see what all it needs. I know it needs the reverse button fixed.