Oh yes Omer,
you have to take whole head part off from it, to find whats is wrong about it.
New parts you can get easily from a great english Singer Patcher newadays partdealer, but minor warning adout that,
you have to exatly know what parts you are needing for you and you have to know why you have to have them...
I can propably help, I can tell what you need... yes, and from here in the midlle of nowhere, and I can help you from here,
from finland if you want to.
I have lot of singer 29' patchers parts without use for me anymore.
Please don't hesitate to send me email:
(sorry for my bad english
"The PosPat & St.Claus are still living...even newadays..."