Rebuild electric motor ?

[fastfredracing]

My old shop compressor let the smoke out of it 2 years ago. I was right in the middle of a busy work week, so I just ran out and bought a new compressor.
My old one is a big cast iron Emglo. The kind that is made to last forever. The little pressure release valve stuck, so the compressor was starting under a load. I did not notice right away, and the electric motor went up in smoke . I want to repair the pump, and rebuild the motor . This would make a great replacement for the spare craftsman I use in the upstairs part of my building .
I had paid to have this done once, and it was almost $300, Im betting I can do it for 50$ and a little bit of time .
5 horsepower 3 phase motor. Anybody ever played with one ?

[hcoles]

no - all I see is new motors for $350-400 or so. Can you post the exact make/model and anything listed on the plate? Subscribed.

[rick-l]

Originally Posted by fastfredracing

the electric motor went up in smoke .

3 phase motor.

All that is in there is wire. Are you talking about rewinding the stator?

[ckelly78z]

I prefer to rebuild the old heavy duty motors, rather than trying to find a suitable, high quality replacement. I take all of my stuff to an old guy here in my home town, that rebuilds it all with quality components, and gives a lifetime warranty.

[1990C4S]

If a bearing had worn out you could fix it, but since it smoked I am guessing it needs to be rewound.

You will need to pay someone. A rewound old motor is better than a brand new motor.

You might look at adding some overloads to your motor, better to reset a tripped overload than fry your motor.

[GH85Carrera]

Most likely that old motor is an American made brute that with a proper rewind and overhaul will run forever. Most replacements are going to be Chinese made junk. But I have to admit, I have not shopped for large electric motors. I might be happily surprised.

[john walker's workshop]

I fixed the motors on my hoists a few times just by replacing the switch plate under the end cover. When the motor groans on starting, i found burned contacts.

[hardflex]

I had a contactor burn points and only 1 leg of the 220 getting thru. Burnt out the old motor and the new one in short order.

[asphaltgambler]

Originally Posted by 1990C4S

If a bearing had worn out you could fix it, but since it smoked I am guessing it needs to be rewound.

You will need to pay someone. A rewound old motor is better than a brand new motor.

You might look at adding some overloads to your motor, better to reset a tripped overload than fry your motor.

Fred - I agree with this statement. Once its smoked from overloading, it's done. Not sure who is doing rewinds in or near your area.....

[fastfredracing]

Thanks, for the info. You guys are probably right, there was a small fireworks show, and smoke . so probably toast. Maybe I will just pull the end cover off, and see what I've got . If it is ugly,I will take it to the pros .