rimcanyon
Diamond
- Joined
- Sep 28, 2002
- Location
- Salinas, CA USA
I looked for gearbox oil leak threads and found quite a few for square dial machines but none for round dial machines. Maybe there are some in larger rebuild threads, would appreciate any links to such if they might help.
The 1940 machine has a slow leak from the gearbox. There is evidence of the leak both in the motor compartment and from the weep hole below the bed. Here is a picture that shows the leak. Under the drain pipe is a layer of oil. This is not a recent leak, I have had it since I bought the lathe in the 1990's.
I tried to solve this by removing and reinstalling the drain pipe two or three times, but no luck. As the photo shows, the sight glass is below all other openings to the gearbox, at least in the front, other than the drain pipe. Are there any others not visible, on the backside of the gearbox? If not, that just leaves a couple possibilities: a crack or casting flaw, or the drain pipe is leaking despite being well-tightened.
The 1940 machine has a slow leak from the gearbox. There is evidence of the leak both in the motor compartment and from the weep hole below the bed. Here is a picture that shows the leak. Under the drain pipe is a layer of oil. This is not a recent leak, I have had it since I bought the lathe in the 1990's.
I tried to solve this by removing and reinstalling the drain pipe two or three times, but no luck. As the photo shows, the sight glass is below all other openings to the gearbox, at least in the front, other than the drain pipe. Are there any others not visible, on the backside of the gearbox? If not, that just leaves a couple possibilities: a crack or casting flaw, or the drain pipe is leaking despite being well-tightened.