The jewel in my shop is an 18 speed 14x42 1937 Hendey. It performs well and is accurate enough for the type of job I do. I use it more or less every day and it is a joy to operate but a bit too noisy on some speeds, and leaking oil. Wish I could avoid ear protection. If you forget to wipe of the chuck it will throw oil in your face which is a bad start of the day. It will also spit oil on your legs through 123 feed gear selector slot when feed is engaged.
Have searched forum and found this topic been up for discussion many times earlier but could not find replies applicable to my lathe. Any hints or advice would be much appreciated.
A full overhaul would be a nice project but so many others on the list. Tried an easy way – removed lid and pulled the gear change levers/shafts. Here my findings:
Noise: Found nothing wrong with spindle bearings (roller) or any of the other ball bearings. Spun each shaft disengaged – nice and quiet. When engaging secondary shaft, humming and clattering begins and gets worse when third shaft engaged. Tried to measure flank clearance but difficult to get reliable readings. Got from 0,1 upto 0,3 mm. The smallest spur gear on primary shaft seems to be the most worn. Anyway, I found no catastrophies so guess I will have to live with the noise and to be honest, it is not a big problem. Emptied a can of STP in the gearbox – no difference. I use a good circulating oil ISO 46. Is there something I have missed?
Leaks: From rear spindle end. From gearbox over to chuck-end spindle bearing reservoir and further out from spindle end. From speed shift axles.
Found that these shift axles were sealed off by lip seals which first thought were leather but center shaft had a removable housing that revealed a pressed in lip seal of some kind of rubber which was rock hard. Shafts no 1 and 3 seems to have seals retained by some kind of pressfit washers. Did not want to pull them until I know exactly how they are fitted. Axles had some scratches so polished them, replaced the broken or bent springs, smeared the lipseals with Omega seal saver and put it together again. Now just a small leak from one shaft remains so situation is acceptable.
Spindle: cannot find any good description how this is sealed off – is it some kind of slinger or labyrinth with return holes? Could grooves/holes be blocked by dirt? How to remove spindle shaft is well described in ops handbook but do not want to do this until I know what I´m dealing with.
Apron will also need attention – this has been thoroughly described by Mr Clement in his excellent videos so believe I will be able to carry out an overhaul.
Grateful for hints on noise and oil leaks