What you put in, you'll get back ten fold
Having problems logging in? Please clear your cache and remove the MazdaMenders related cookie from your browser.
If you need assistance doing this, don't hesitate to contact us on FaceBook or email forum-admin@mazdamenders.net stating the browser you use.


Mk1 front break caliper overhaul

User avatar
Site Admin
Posts: 6618
Joined: Wed Dec 07, 2011 8:42 pm
Location: Medway towns, Kent

Mk1 front break caliper overhaul

Postby flea » Thu Nov 29, 2012 5:52 pm

Mk1 front caliper overhaul.

After removing the front caliper from the car you'll need to remove the piston. I find it easier with a air hose. Put your hand behind the piston & it will stop it getting damaged also give short blasts from the air gun.
fc2.JPG (26.61 KiB) Viewed 1209 times

fc3.JPG (27.99 KiB) Viewed 1209 times

Then remove the dust cover from the housing as shown.
fc4.JPG (27.54 KiB) Viewed 1209 times

fc5.JPG (27.53 KiB) Viewed 1209 times

Then remove the inner rubber seal.
fc6.JPG (25.42 KiB) Viewed 1209 times

fc7.JPG (27.33 KiB) Viewed 1209 times

fc8.JPG (27.76 KiB) Viewed 1209 times

After removing the seals & throwing them away you need to clean the grooves shown in the picture near the end of my thumb, also the bore of the caliper body. You can use an air gun to ensure there is no debris left behind.
fc9.JPG (20.51 KiB) Viewed 1209 times

Also clean up the piston. I use flour paper as this will not scratch the finish but will remove the old rubber particles.
fc10.JPG (18.3 KiB) Viewed 1209 times

Fit the inner seal & make sure it is sitting properly & smear some brake fluid over the rubber.
I use the same fluid that I use in the braking system of the car.
fc11.JPG (23.9 KiB) Viewed 1209 times

Also smear some break fluid over the surface of the piston this will make it easier for you to fit the dust rubber.
fc12.JPG (17.06 KiB) Viewed 1209 times

Now push the dust rubber over the piston from the outer end. It will try to locate itself in the groove that its meant to sit in. Just push it over the groove to the other end of the piston so the rubber is sticking over the end as shown in the picture.
fc13.JPG (21.61 KiB) Viewed 1209 times

Now place the piston in front of the bore & locate the rubber at the bottom first, with your fingers work the rubber seal into the groove like so. You can give it a little twist holding your thumb & forefinger on the rubber to ensure it's in place.
fc14.JPG (23.15 KiB) Viewed 1209 times

fc15.JPG (21.97 KiB) Viewed 1209 times

Now just push the piston into the chamber. You'll feel it against the inner seal but it will go with a bit of pressure. The dust cover rubber will locate itself within the groove of the piston once pushed in enough. Just give it a check over to make sure its sitting properly.
fc16.JPG (22.81 KiB) Viewed 1209 times

Apply a little grease to the bleed screw & fit that.
fc17.JPG (27.09 KiB) Viewed 1209 times

And that's it your refurbished caliper.
fc18.JPG (23.26 KiB) Viewed 1209 times
Eunos 1.6 special 1989 with a few added extras
Eunos 1991 1.6
Eunos 1990 1.6 project
Mk2 1999 1.8

Return to “Braking”

Who is online

Users browsing this forum: No registered users and 1 guest