Getting seized set screw out


  #1  
Old 01-19-22, 08:19 AM
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Getting seized set screw out

This is for a restroom exhaust fan. The motor died and I have to get the blade off the shaft shown in the picture.



Iíve dowsed the screw with PB blaster a few times and let it sit overnight but it doesnít seem to be budging.

might this be reverse thread?




 

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01-27-22, 10:25 AM
beedoola
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I finally got it. Pushed the Allen key almost to its limit but it popped loose!
 
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Old 01-19-22, 08:26 AM
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It should have a standard direction thread. Only use a high quality, sharp wrench and make sure it is seated as far in as it will go... and hope it breaks free. You can also try heating it with a torch.
 
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Old 01-19-22, 10:17 AM
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I just had a situation trying to get a set screw out of a single handle faucet.

Took about 5 days of a small shot of PB every day, 5th day it came right out, give it some time.

Good advice on the tool, a good, not cheap hex will seat better and prevent striping.
 
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Old 01-20-22, 06:38 AM
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It's very unlikely a reverse thread.

My father taught me an old trick - if you can't loosen a screw, tighten it. Then attempt to loosen it. That's worked for me many times over the years.

Also what Marq1 said - give it more time with the PB Blaster.
 
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Old 01-20-22, 08:32 AM
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if you can't loosen a screw, tighten it.
I've used that trick on many occasions. Just enough to crack the corrosion. ​​​​​​​
 
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Old 01-27-22, 10:25 AM
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I finally got it. Pushed the Allen key almost to its limit but it popped loose!
 
CircuitBreaker, Dixie2012, Marq1, Norm201 voted this post useful.
 

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