Sears & Roebuck model 109.20630 metal lathe

[Rex]

I think a Harbor Freight 7X12 worked better.

The 109 was the minilathe of the 1930s and 1940s. 90 years of industrial progress and even the Chinese can improve on the design

[Rex]

Worth keeping around. These are the earliest models.

[spro]

Bugatti ! (or Talbot Lego). They had the Style . Harold's Auburn Cords are super awesome style wise. They had a unique American "twist" about them. The transaxle set ahead of the engine and the "CV" joints were engineered.

[Steggy]

Bugatti ! (or Talbot Lego). They had the Style . Harold's Auburn Cords are super awesome style wise. They had a unique American "twist" about them. The transaxle set ahead of the engine and the "CV" joints were engineered.

What does any of that have to do with an old lathe?

[Rex]

Well it's a 7 year old thread, it's bound to drift off-topic

[crbenker]

Thanks for opinions, but....
This lathe is fine for what I'm doing - just an occasional bushing, or cleaning up a shaft.
So - again - can anybody tell me what problem might be and how to fix it?

[Harold_V]

I suspect that you're not going to get a reply of any value. Without having the ability to look at the machine, it might be impossible to determine why it's behaving as it is.

Might be a good idea to determine if the bearings in which the screw rides are binding. A good place to start.

One thing I recommend is to eliminate the problem. Those Zamak gears won't last long if they operate under extreme pressure, and it may raise hell with the halfnuts as well, depending on why it's hard to turn.

H