Newbie with old machines and projects

@Janderso,

Welcome to the Hobby-Machinist!
Lots of good advice above.

-brino
 
In regards to your fine old bandsaw- if there is any brass in it's gearbox (roller gear, thrust washers, etc.) then any type of hypoid gear oil is not compatable. I visit another site who's owner and moderator is a very sharp, and quite opinionated petro-chemical engineer. He states any oil with EP, or "extreme pressure", additives contain sulpher, which will attack any metal containing copper. Not saying "run to the shop, and DRAIN it NOW", but another oil would be prudent soon. He recommends Mobil SHC Gear 460, or SuperLube 54432.
 
Regarding brass, I don’t have a clue, I saw helical gears and bearings that were quiet and tight.
 
no time like now to single point a left hand acme nut. have you ever made a v thread nut by single point. if you have then its just the shape of the tool bit and a different position on the compound. If you want to know more just ask. bill
 
Looks like the nut you have has been modified as someone stated above. The origional thread was an acme, most likley 5/8 or 3/4. If you dont feel confident in making a new nut you can purchase an acme threaded rod 3' long for about $40 and a brass nut for another $10. Some machining/adaptation would let you put them in your machine. There are some great videos on YouTube on internal and external threading which may get you in the mood to make your own.

In any case welcome to the forum and know that questions are answered here quickly and with a helpful attitude. A bucket or bin of "attempted" parts is a badge of honor when it comes to metal work. Ive got some interesting learning experiences lying around here, each one worth their weight in experience.
 
i found the threaded rod at tacoma screw. i ordered a tap to thread the new block i will make.
pics to follow, maybe this weekend. easter may get in the way. my wife asked me when i was coming out of the shop? I said, around thanksgiving. Can't wait to get started, just like going to metal shop class in 1974, mr. wade was a great shop teacher. ygnacio valley high, concord, ca
 
Janderso said:
Regarding brass, I don’t have a clue, I saw helical gears and bearings that were quiet and tight.
Click to expand...
A good pic of the gearbox from a few different angles would help to deduce the types of gears within.
Many bandsaws utilize the "worm and roller' style of gears for the final speed reduction. Many of that style have a brass or bronze roller gear. Mine does. In my opinion, it would be a shame to cause premature wear to an irreplaceable part over $20 bucks worth of oil, and an hour of time.
 
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