Water in middrive Motor housing

Discussion in 'Electric Bicycle Non-hub Motor Drives' started by ninjaplatypus42, Oct 10, 2016.

  1. ninjaplatypus42

    ninjaplatypus42 New Member

    Joined:
    Mar 16, 2016
    Messages:
    117
    Likes Received:
    0
    I have a bike with the 24V 450W electric bicycle gear motor from electricscooterparts.com on it running through shift kit to the wheel. I recently noticed a substantial decrease in power. I checked the battery and voltage out of the speed controller and they were both fine. The motor seemed like it had resistance inside it so i took the back cover off and it was full of water. I'm surprised it's still working but it is. The motor runs much better now but it still isn't as powerful as it used to be. Is there any way to fix this? Is the motor permanently damaged? Could the speed controller have been damaged too? Any insight would be appreciated.
     
  2. dmb

    dmb Active Member

    Joined:
    Dec 4, 2010
    Messages:
    1,359
    Likes Received:
    0
    i'm no electric motor wiz, but i'd try unpluging the battery and washing it out with wd40. if the bearings are bad and the armature and field meet you got toast. i've been washing my cheep chineze house fans once a year with the hose let dry, wd40 them and they have lasted 10 years. a little greese or oil the bearings isn't a bad idea. but as i said before an expert i am not. good luck.
     
    #2 dmb, Oct 11, 2016
    Last edited: Oct 11, 2016
  3. ninjaplatypus42

    ninjaplatypus42 New Member

    Joined:
    Mar 16, 2016
    Messages:
    117
    Likes Received:
    0
    Yeah i think the grease may have gotten washed out or something. When you take the motor apart do you take the gear side off first or the back side? I took the backside off partially to let the water out but it wont come all the way off.
     
  4. dmb

    dmb Active Member

    Joined:
    Dec 4, 2010
    Messages:
    1,359
    Likes Received:
    0
    i looked at that page and i'd say pull the gear off. it might have sealed bearings so it might just need cleaning, call them and ask, theirs a chance they will replace it. good luck
     

Share This Page