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Veteran
Posts: 295
| Do you guys "rough up" the contact surface on a brake drum prior to re-assembly?
Mine are super glazed where I had those hard Raybestos shoes on it.
What do you guys do?
Thanks,
Wayne |
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Extreme Veteran
Posts: 443
Location: Beaumont TX | I don't rough up the drum surface because of an appearance of a glaze, but I have used sandpaper to sand out rough areas on the surface. I think the main thing is to use brake parts cleaner to make certain there is no oil on the surface of the drum or the shoe. |
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Veteran
Posts: 295
| Yea, I hear ya, and I ordinarily wouldn't either but in this case they've been running with REALLY hard lining material for about 3 or 4 years. I've actually never seen a drum quite as shiny as these. They're like super, highly polished.
Thanks,
Wayne
Edited by jaded13640 2020-06-17 5:30 PM
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Expert
Posts: 2002
Location: Branson, MO | Just a comment that may be of value. When brake drums and rotors are turned, they are never polished/shiny - always a bit scuffed looking when finished. Nothing ever said to me about further preparation necessary before installation.
The brake shoes themselves are "roughed" up a little and the leading edge chamfered a bit. |
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Veteran
Posts: 295
| Yep, when I did brake turning, rather than leave the nice smooth machined finish we used an attachment that held and rotated a scotch-brite that left a slightly "scratched up" surface to it. I'm going to use a scotch-brite on my air angle grinder. I don't know if it'll even rough them up because of them being just so overly polished because of the use of the harder than honeymoon dingy lining. We'll see.
Thanks,
Wayne |
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