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Old 01-21-2024, 10:51 PM #1
Garcia9876 Garcia9876 is offline
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I need help with my New alternator
I have question for my new alternator for a 2011 4Runner limited with 130 amp OEM not refurbished.

Part# 27060-31190

My question is

When you try to spin the bearing on one side does it get locked?

Is it normal
For a new brand one or not.
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Old 01-22-2024, 11:52 AM #2
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This video demonstrates how an overrunning pulley works. Start watching at time 1:15. Use caution and do not scratch internal wiring if you elect to use a screwdriver to hold a cooling fin. I choose to quickly spin the pulley with a flick of the hand rather than poking tools into an alternator. The pulley locks up in one direction and free wheels in the other.

https://www.youtube.com/watch?v=-0TOVgXUrw8

Additional information on Toyota OAD pulley diagnosis is available here Alternator Decoupler Pulleys | Toyota Nation Forum
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