Thread: Adjusting or replacing babbit bearings in a Mars Great Scot lathe (brisbane)

Originally Posted by Stustoys

lol, forget what I said then, I thought the seat was in the bottom of the piece I arrowed.
Thanks for clearing it up

Stuart

Here is a picture with the needle seat removed from the sighting chamber (inset is the top side of the seat, main picture shows the needle and underside).

I lightly filed off the burring around the hole and reassembled---same behaviour, one or two drips form nicely, then one will "go sideways" and all further flow wicks down the inside of the glass instead of forming visible drips. Maybe the hole is too large causing drips to become too fat, or the angle is too shallow.

Will try some turning operations on the drip cone at the weekend.

Chris,
You seem to have forgotten something.

Stuart

Originally Posted by Stustoys

Chris,
You seem to have forgotten something.

Stuart

The forums really didn't like my edited picture. I lowered the res and uploaded a new attachment.

Thanks Chris,
Sorry I dont have any ideas about fixing it.
Who would have thought it would be so tricky.

Stuart

I'm struggling to see how it can wick onto the glass unless the glass is really close to the nose, ie not much bigger than the outlet. If that's the case all you can do is turn down the nose cone to give it a bit more clearance. That's all I can think of anyway.

Progress update:

Still haven't got the oilers forming visible drips, but am satisfied enough for now that they drip at an acceptable and steady rate.

The parting-of-the-red-sea that my father-in-law achieved to clear a path to the back of his shed to get the lathe out has ended---a second miracle will be required to get the base out---not for several more weeks.

I've glued up a new endless leather belt to replace the alligator-clip belt which was a bit too wide and would brush against the backgear cog. New belt runs very quiet.

Started turning up some missing parts--leadscrew end nut and a second changewheel banjo stud are first up.

How level have you got the lathe? If its just sitting on a bench and not very level, maybe thats why the oilers dont drip?
Stuart