I have a Singer Stylist 834. This is a good machine but I needed to replace the timing Belt and motor Drive belts. I repair engines so i thought i could take this minor task on.
In short, the Belts are replaced and I tried to maintain all of the original timing with respect to the top and bottom drive shafts connected by the timing belts.
Obviously something slipped. The needle is now being scraped by the bobbin device. The cams that move the zig zag levers for the needle are also out of position so I could not locate any timing marks on the shafts or bushings.
In order to change the inside timing belt the main shaft must be slid out the front of the machine by about 2 inches to get the belt onto the shaft.
Any help would be appreciated- I am trying to align everything by trial and error but not with great success.