Anatomy of a Wiper Motor - '85 & Up

[89Suburban]

Cool stuff, dude. I always love seeing how things work. I've got an older wiper motor in my garage, maybe I'll cut that one open too. It's got an internal (but broken) washer pump.

Thanks man, nothing else to do being stuck in the house, might as well tinker and see how our Squarebody **** works and share it.

 

[89Suburban]

Couple of shots of the wiper park switch:

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[89Suburban]

Armature, Magnets and 1 Cage removed, the other cage is riveted to the housing:

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[89Suburban]

Some shots of the brush housing, note there is 3 brushes, I am assuming 1 ground, 1 low speed hot, and one high speed hot:

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[89Suburban]

Here is the wiper park switch/sensor removed from the housing:

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[89Suburban]

To get the brush housing removed from the motor case, bend these 2 tabs:

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[89Suburban]

Pics of the brush housing:

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[89Suburban]

Close up of thermal safety shutdown switch:

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[89Suburban]

Poo Poo shaft bushing instead of roller bearing:

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[89Suburban]

Final parts pile:

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[bucket]

Did it work before you took it apart? Find any damage inside?

 

[89Suburban]

Did it work before you took it apart? Find any damage inside?

That is the wiper motor off of Silvy when I bought it. It never self parked. I swapped the motor in from the '89 and it parked fine.

I figured for the 80 - 100 bucks these things go for it would be nice to have a look inside.

What went wrong? I don't know but I think it was a combination of the wiper motor and the cruise switch.

 

[Stroked]

Well that's pretty cool. I always wondered what that adjusting bolt was for.

 

[austinado16]

Nice little dissection Doctor.

 

[HotRodPC]

Yep you were bored. Cool **** though. I've done the same thing with stuff before.