Seized brake pins - GSXR.com
 
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post #1 of 5 (permalink) Old 08-10-2019, 02:10 AM Thread Starter
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Seized brake pins

As title says,

I'm trying to clean the front brake calipers and pistons on k4 600 but pins are seized. So far took a whole day of penetrating oil and elbow grease to take one off. Previous owner never put grease on them, tightened them as if his life depended on them, and sure enough they're rusted stuck. I'm hoping it's not a case of galling, which would be a much bigger issue.

If anyone has any more ideas apart from more penetrating oil, heat, hex socket on an impact wrench I'd be happy to hear them, possibly before the heads get rounded off.

Worst case, I could try drill the pin a little bit and use an extractor?

Thanks all, safe riding
Steve
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post #2 of 5 (permalink) Old 08-10-2019, 03:42 AM
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post #3 of 5 (permalink) Old 08-13-2019, 08:53 PM
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Plumbers torch and sea foam's deep creep penetrating oil.

Try tapping it with a ball-peen after letting the deep creep sit over night before you try to back them out.

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Last edited by Last Week; 08-13-2019 at 08:56 PM.
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post #4 of 5 (permalink) Old 08-14-2019, 02:09 AM
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If your really stuck (no pun intended) you can take a very small drill bit and drill behind the pin and then tap it out with a nail or very small parallel punch. This is how I've done rear brakes before, but just thought that you may mean its the thread that's stuck?
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post #5 of 5 (permalink) Old 08-14-2019, 04:37 AM
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Some one used to tell me if the bolt or pin is stuck you need a bigger hammer. Heat the pin with a torch till it’s almost glowing Beat the pin loose with a hammer, it should come out a lot easier with the heat.
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