20-year-old Shop-Vac

Re: 20-year-old Shop-Vac
I gotta 20-year-old Shop-Vac 8-gal. that's seen lots of service in my little basement workshop.
When I run it now, it makes horrible screaming-gurgling noises. I have disassembled: I can't see them, but it appears to be bad motor bearings.
Are such units repairable? Any way to nurse the unit thru another year or 2? Can't afford to buy a new one ...
TIA, Puddin'
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Puddin' Man wrote:

Maybe you can pull the rotor and replace bearings--depends on design. Unfortunately, imo by that time there's usually too much wear or the brushes have rubbed to the point of being beyond much hope.
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I successfully replaced the bearings in my unit. Couldn't get them from the manufacturer any more. Instead I pulled out one of them and took it to a vacuum cleaner repair place, after a bit he found a pair that would fit. Don't remember what they cost, but it was worthwhile --still using it 5 years later. But check the brushes, vac place may have replacements for those too. Mine were still good.

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When my 30 yo vacuum made bad noises I replaced one brush (the other was good) and put heavier oil on the worn bearings; way oil or chain saw oil or slick 50 grease all work well on worn bearings.
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Some of these bearings are relatively standard, so if there's a bearing supplier near you, it'll be worth a visit once you've checked them out and determined they're bad.
Bearing failures are often pretty obvious. Brush problems tend to be high pitched screeches, whereas bearing problems are more full-throated moderate-pitch howls.
[My skill saw's bearings are really badly worn, with a pretty substantial wobble. It gets into a mode where the shaft is obviously "orbiting" in the bearing. Resonant frequency while the saw is stopping... First time I heard it, I practically jumped out of my skin. Yeah, someday I should fix it. Sawing interlocking pavers is bad for motors...]
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Much thanks to all respondents ...
wrote:

Aha! A Shop-Vac? Remember what you had to do to get the motor apart?

Salut!
I called maybe 5 vac repair shops, asked if I could bring motor in, get a cost estimate. They all suggested I should pitch the old unit, buy new.
Not sure where to go from here ...
Cheers, Puddin'

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On Wed, 15 Jun 2005 23:32:34 GMT, snipped-for-privacy@Gmail.com (Puddin' Man) wrote:

That's true. These dfays its cheaper to just buy another one than repair. What I do with my old ones is to take them apart to see how they are put together. If I can fix it so much the better. If not I have learned something and I have a can full of parts even if they are only screws, nuts and bolts, and a powercord and switch. That something learned can be how to take things apart without gouging or wreaking it. How not to overstress or abuse the gadget when operating it. The wear limits of the various components, etc. Another learned skill is to recognize the extent of a problem as to whether a quick and simple fix can get it back to good condition quickly, a more difficult fix to be done later but in the meantime don't wreak it, to when you know its a tosser without having to disassemble something. I have equipment that are more than 40 years old and still working good.
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Puddin' Man wrote:

....
Start experimenting...unless it's riveted, there's a way. There almost as many different motor can designs as vacs so it's hard to say specifically.
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You can either oil the motor, or remove your mother in law.
I'd go with oil the motor.
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Christopher A. Young
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Stormin Mormon wrote:

Only remove the mil if she's not paying her tithe (extortion) faithfully. Why not, your lieing leaders claim she'll never make that 'celestial' kingdom anyway.
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