South Bend 9a Restoration (pic Heavy)

OUCH!! 75 lbs of force!!! Wait a minute, that's 150 lbs of force!!! Double ouch!!!

You going to break something putting that kind of force on that lathe. It don't take more than a few pounds of force to detect play in the spindle.
150 lbs of force is going to move things and give you a false reading on your tenths reading indicator.

Ken
 
Thanks for your advice, Ken- this is all new to me so I really do appreciate it! Do you think there's a typo in the book? This is all I really have to go by:

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So far so good!! Spindle clearance is right on! 4gsr- that was a really good call to test now before full assembly because it was very difficult to get the shims back in. The last guy to mess with them must have hammered on them or something, because the edge of the slot where they go into the head was kind of mashed up. I had to carefully file the lip so that the shims could be inserted. Even at that, I was only able to get a portion of the shim stack in there that I had initially taken out. I thought that might be ok, but when I tightened the head bolts to "about 20 pounds of force" it locked the spindle.

So I turned some cone wedges out of hardwood on my wood lathe, put the wedges facing in on each side of the bearing bore, and tightened the wedges together with a piece of threaded rod run through them. This expanded the shim gap just big enough to barely be able to get ALL of the shims back in that I initially removed. After that, I could tighten the head bolts to spec, and I measure .002" clearance both front and back. Right on spec!

 
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and most of that clearance will disappear when the oil gets in the gap! Excellent work!
Phil
 
It has been a while since I've posted in this one, but the work continues. I'm really not sure how some of you can knock out such beautiful machine restorations at lightening speed! I don't think I work particularly slowly, but this sure is taking forever! Regardless, I'm having a good time doing it...

The countershaft assembly was really holding me up from assembling the lathe head since I need to put a new serpentine belt on there and don't yet know the belt length. For whatever reason, the countershaft assembly just did NOT seem like it would be fun to mess with. Of course it really wasn't bad, but I didn't have a ton of motivation to work on it. I started with the ugly green motor. I pulled it apart, pressed off the bearings, replaced them with new ones, and painted the motor:
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The countershaft was disassembled, stripped, and repainted. I actually bought a second one on ebay for just $40 with the intention of learning how to line bore on it as a project. I want to bore it out to insert these oilite bearings I purchased. Obviously I can't bore my countershaft stand while the lathe is running, so the second one was the right price.
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The tailstock, milling attachment, and a ton of other parts were stripped and repainted. It took me forever to mask all those parts!
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It sure does bring me great joy to see this table filling up though!
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I picked up a couple super cool accessories that are also getting painted. Telescoping steady rest and follow rest. I'm especially excited about the follow rest because even though it's not often used, my understanding is that the telescoping follow rest is not particularly common.
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And finally, I did do the spindle takeup bearing mod as well:
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...Next up will be mounting the countershaft to the bench so I can accurately measure for the serpentine belt. Then final head assembly. What's left is the quick change gear box and the saddle.

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Nice machine. Great photos. Awesome run through. Thanks for that.
Lken
 
The counter shaft motor turned out sweet.

That motor was UGLY! I think it's just some farm replacement motor- I could be wrong, but it doesn't seem like anything special. I just couldn't leave it green like that after putting so much work into the rest of the parts. It was fun to tear that motor apart. My uncle has done electric motor repair for years and years and years. I'm no slouch on the matter, but certainly nowhere near as established as him. He was able to walk me through ever step of the tear down via phone, which- I wouldn't have thought would be needed; tearing a motor down is not exactly difficult. But there were some real gotchyas that I would have messed up without a more experienced guide. So that was nice.

Quick lesson: I kept saying "the armature, the armature" and he kept correcting "the rotor." Turns out that if the center shaft has windings on it, THEN it would be an armature. But if the center shaft has no windings- just iron cores like you see in the photos, that is called a rotor. I hadn't realized there was a distinction. Learn something new every day!
 
Very nice work!!!
I especially like your motor mount on your counter shaft assembly, is that original? mine doesnt have that mount, it just bolts right onto the assembly. I also like your matching follower rest and Steady rest, very nice

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