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So after about two years of puttering along, my blower motor seems to have finally bit it. It's been making belabored sputtering sounds for the past three days and then stopped making noise/pushing out air altogether. I just pulled it out in the hopes that cleaning it might bring back some life to it and aside from two big, dead bugs, I found some blue stuff on the wires. It's hard and almost looks like old dried out gum. It's been there for as long as I've had the car at least. Should I try to take it off or leave it be?

Thanks! :D
 

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I dont think its something you should remove. I think I have seen these dried out rubbery things in other electric motors. I think it is something they use for assembling the unit. If it just stopped working, I saw where the brushes can be worn out or maybe the bearings in the shaft ends.
 

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I believe he is referring to the red goop on the stator, and since it doesn't move, probably is not for balance.
 

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It's for balancing the armature when they are made. Some grind the armature some use the putty stuff some use both.
I can second that, I've seen variations of that in my bigger 1/2 - 3hp electric motors on the farm. Always assumed it was for balance as well.
 
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