Gunnarson, the reverse mechanism appears intact, and it reverses the direction, just that it’s backwards
Constabulary, I don’t have it on a motor yet, I’m turning it by hand so not a motor problem. The stitch length lever is positioned correctly.
Pintodeluxe, where are these timing marks please? That sounds like a distinct possibility.
Lastly jere are a couple of photos, in case they help.
Bulldogger