Cleaning Corrosion From Brembo Caliper Piston Bores?

Street Fighter

Full member
I have some corrosion in my caliper bores where the caliper pistons go.
How can I clean them should I use some wet/dry sand paper 400 grit or 600 grit maybe.
 
I would, but I'd use some brake fluid for the lube. My clutch master cylinder was all gummed up, to the point of leaking. A bit of wet & dry, as above, sorted it nicely.
 
soak in citric acid ,ie De Ox-C ,slight emery if necessary ,lube up.
 
Scrape the corrosion off with a sharp stanley blade. Never a good idea to use abrasive paper on a bearing surface as some of the abrasive may stay behind in the soft aluminium of the caliper bore. A good wash in soapy water with a bit of fine scotchbrite to finish and the bores should be good again, they generaly only corrode outboard of the seal. Best not soaking them in acid.


    Keith
 
Brasso

its that stuff that used to be called Duraglit, it comes in a tin, and is an impregnated wool for cleaning brass and silver etc, polishes them up nicley, and will not impregnate the alloy with abrasive, or remove any metal, make sure that you wash with soapy water and blow clear with an air line when you are done.
CLEM
 
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