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Swapping from a 143T to a 143TC motor
- Thread starter Pevehouse
- Start date
I feel better knowing it’s not some crazy **** with the way I reversed it though,lol
- Joined
- Jan 2, 2019
- Messages
- 7,316
I bought a new motor and it sounds like it has a bad bearing. Baldor too, I know the motors on our bikes can get noisy if they're shipped with a belt tensioned. Obviously not your situation but know that it does happen.
Did you buy the motor from someone with a guarantee? Recent purchase or have you had it for a while?
If you have a motor shop in town it might be worth taking it to them, those guys really know their stuff usually and can give you guidance.
John
- Joined
- Apr 10, 2021
- Messages
- 625
Bearing could have been seated incorrectly. A replacement SKF Explorer with high temp grease is still pretty cheap. Rather than tear into the motor, I would have removed the P head, made plate out of 1/8 al or whatever I had in the shop. Extended the wires with heat shrink connectors, used some plastic flex and a fitting and run the wires to a box located somewhere to make the machine connections. I've done that with no problems on old machines. Dave
Bought it off of flea bay but it had never been hooked up. I may order a couple replacement bearings for it just to be safe
Yes sir, anything is possible and your suggestion did cross my mind. Was thinking of using a 90 degree gland nut to make the turn up to where I could wire it. However the motor comes apart and goes together very easy. I guess maybe I will order a couple bearings and just replace them. I loosened the rear end cap and ran the motor, with it loose, just barely snug the noise goes away almost completely therefor it has to be the way those bearings are being loaded or just a bad spot on one of the races. I appreciate your help, thank you
- Joined
- Feb 2, 2013
- Messages
- 4,100
If you have the motor apart, take a look at the rotor, as well as the field windings.
there should not be any contact or rubbing between them.
I had a look at post 12 , picture 5
It appears that there’s been some slight damage to the fan end of the rotor. There appears to have been contact at some time or a casting burr that was not removed.
It also appears that a couple of the fins have been slightly twisted .
Have a look at the little washers that they are using for balancing the rotor, if any of them are loose, it can cause funny noises.
there should not be any contact or rubbing between them.
I had a look at post 12 , picture 5
It appears that there’s been some slight damage to the fan end of the rotor. There appears to have been contact at some time or a casting burr that was not removed.
It also appears that a couple of the fins have been slightly twisted .
Have a look at the little washers that they are using for balancing the rotor, if any of them are loose, it can cause funny noises.
I will take a look. I noticed that damage as well but could not find where they may have touched. Wasn’t sure what to think of it,lol. I will inspect it well when I get home tonight
