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Cleaning calipers
Posted: Fri Feb 13, 2015 6:15 pm
Author: sprint
Is it OK to have my A4 calipers vapor cleaned prior to re-spraying?
There is a bit of corrosion at the entrance to the piston cylinder aperture, where the dust boot retaining ring fits, which need cleaning. Is that OK or does that whole area need to be masked and protected?
Posted: Sat Feb 14, 2015 2:12 pm
Author: sprint
Has knowbody here refurbished any calipers?
Posted: Sat Feb 14, 2015 4:05 pm
Author: z1bman
it will be fine just keep it as much away from the from the main piston area below the main seal
Posted: Sat Feb 14, 2015 5:27 pm
Author: zed1015
Do you mean vapour blasted.
I presume the calipers are split and stripped bare and if that is the case then the piston bore needs masking off.
If the firm doing the blasting is any good they will know where to mask.
Posted: Sat Feb 14, 2015 6:39 pm
Author: sprint
Yes I do mean Vapor blasting, glass beads in water. They are A4 calipers, which are the non splitting type.
Everything have been removed, so just the bare castings.
There is some corrosion in the piston seal o-ring groove and the machined step at the front that the dust cover retaining ring is pressed into which need to be cleaned. Was hoping that this can be done with the vapor blasting?
Posted: Sat Feb 14, 2015 6:43 pm
Author: z1bman
just mask of below the piston seal & it will be fine