Offside Front Brake Caliper 7 years 32,700 miles

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Offside Front Brake Caliper 7 years 32,700 miles

Postby drumtochty » Thu May 07, 2015 5:27 pm

Changed all disks and pads last summer say at 27k miles, replaced brake fluid last week all round.

I took the caliper off today as it was very hot when driving and both slider bolts free. Both pads free and lifted off by hand.

Got the piston out and it looked like this.

Image

So I cleaned it up and it now looks like this.

Image

Therfore the surface is less than perfect.

The rust is well into the outerboot ridge on the caliper body and some minor markings on the bore.

Image

The caliper seals go into stock and a recon caliper ordered.

eddie
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08 Mk3 2.0 RC Sport Copper Red
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Re: Offside Front Brake Caliper 7 years 32,700 miles

Postby mgrays » Fri May 08, 2015 10:32 pm

1000 wet n dry lubricated with brake fluid to clean the bore, scape out the seal groove and new pistons/seals; cheap way! A recon will have the nice zinc plated finish so is a better cosmetic option.

The shiny surface on the pistons are chrome plated and ground finish. The corrosion is classic crevice corrosion. Pull a cup of brake fluid off from the calipers every year min.. even better new brake fluid every year (or two if lazy). Pulling the fluid will remove the worst part of the fluid as it pulls water in through the hoses and the seals, it also ensures the bleed nipples stay un-seized.
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Re: Offside Front Brake Caliper 7 years 32,700 miles

Postby drumtochty » Fri May 08, 2015 11:12 pm

Well today the offside rear on the Impreza did the same. This time 9 years old and 85,000 miles no chrome loss on the piston.

As you say best to change the fluid every year.

eddie
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