Alternator Decoupler Pulley repair HOW THEY WORK fix
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 Published On Sep 29, 2023

Overrunning Pulley Rebuild

Stuff I used in the video:
Decoupler pulley REMOVER kit: https://amzn.to/3RArgGV
DODGE Chrysler Pulley I bought: https://amzn.to/3Px9ZM9
FLUX CAPACITOR Delorean owners only: https://amzn.to/3PUvGXU

After Thoughts about the Video: The part I bought is cheap but that means it's likely cheaply made. I will buy a bearing, rebuild this one and keep it on the shelf for future use.

HOW IT WORKS is slightly different than I said on the video. After looking it over extensively, the thick spring inside only purpose it to dampen the blow from the belt turning the pulley to the alternator's resistance to turning. So this would reduce vibrations and extent belt life. The outside skinny spring is always binding outwards with the pulley; keeping it locked. So default is pulley locked. Reverse rotation coils up that smaller spring and reduces it's size, disengaging the pulley. I looked it over extensively off camera and I came to the conclusion these are dry assemblies. Any lubrication(other than bearing) would hinder it's operation.


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