GreasyJ

After installing both parts, the side-to-side slop is gone! Now it's on to the needle and thread. Thank you again for your help!

Constabulary - I do have this timed to near perfection and the shuttle and carrier are both new and there is no slop in the bottom rack at all. My side-to-side slop is in about 2mm+. Thank you for your suggestions. Gump - After reading both posts I caved in and ordered both parts in question. They should be here soon. Thank you for your help as well.

Hello, I have been learning a good deal of info from this site. Thank You! I do have a question regarding a 29k71 I have been restoring. I have replaced many parts on this machine to 'tighten it up'. So far, so good. However, there is one area I am still having trouble with. My needle bar still has some side-to-side slop that is causing it to skip stitches. I really have no way of knowing what may be the culprit, the Revolving Bush or the Driving Lever where the Piston Joint slides into. I have replaced the Piston Joint but there is still some up and down slop in where it slides into the Driving Lever which does cause some side to side movement of the needle bar. I don't want to throw money at parts I don't need, so I guess my real question is: Does anyone know how tight the Revolving Bush tolerances are where the needle bar passes thru? Are they so tight that there should be no side to side movement of the needle bar at all (while the piston joint is disconnected)? Any help or suggestions would be greatly appreciated! Thanks, Josh