Of course painted on metal makes sense

"nFamousCJ - Keeper of Stringbean, Gengars and a Deezul" (nfamouscj) 05/21/2020 at 13:51 • Filed to: None

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Thought I was having issues with my clutch hub not engaging (more issues elsewhere unfortunately). Put the new hub on and it didn't want to bite. Some spinning, some biting, but I'm not fighting with it. Old hub is working well and not the root of my cause. But seriously though, why is it painted?!

Turbineguy: Nom de Zoom > nFamousCJ - Keeper of Stringbean, Gengars and a Deezul 05/21/2020 at 13:57

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Corrosion resistance? 

Michael > nFamousCJ - Keeper of Stringbean, Gengars and a Deezul 05/21/2020 at 14:06

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I’ve received brake rotors like that.  Rotor was fine, but the e-brake drum-in-hat was painted.  

Michael > Michael 05/21/2020 at 14:06

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Needless to say it didn’t work well

ttyymmnn > Turbineguy: Nom de Zoom 05/21/2020 at 14:44

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Friction resistance.

jimz > nFamousCJ - Keeper of Stringbean, Gengars and a Deezul 05/21/2020 at 14:56

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the factory one was painted at first too.  just wore off with age.  if the new one isn’t engaging reliably, I’d wonder if its stiffer than it should be or the metal it’s made from is different.  

nFamousCJ - Keeper of Stringbean, Gengars and a Deezul > jimz 05/21/2020 at 15:19

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Its just sliding the paint against the old material. If the old one becomes a problem I'll wire wheel the replacement to bare metal. Or just get a whole new compressor , clutch and all. They're <$200 anyways. 

oldmxer > nFamousCJ - Keeper of Stringbean, Gengars and a Deezul 05/21/2020 at 16:33

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the other mating surface part needs replacing you have to have two flat surfaces

brianbrannon > nFamousCJ - Keeper of Stringbean, Gengars and a Deezul 05/21/2020 at 20:32

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The clearance needs to be set properly and a/c clutches have a bed in period

nFamousCJ - Keeper of Stringbean, Gengars and a Deezul > brianbrannon 05/21/2020 at 21:32

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Clearance was in spec .020. But the sound and watching the spinning was pretty alarming.