Thread: Caliper rebuild

I've seen this done on rusty pistons and it works a treat.
- screw a grease nipple in the brake inlet of the caliper
- pump in grease from a grease gun
- when one piston starts to move, lock it with G clamp(s)
- when second piston starts to move stop pumping grease
- remove G clamp(s)
- remove second piston
- remove first piston
- remove grease nipple
- give pistons, calipers and pipes/tubes a really good clean to remove all traces of grease.

Originally Posted by mattg

Hi All

I have been to good oil and done a search but can't find the best way to get the pistons out of my D2 front calipers. The ruber seals are stuffed so I want to remove the pistons to see if they need replacing befor I order my seal kits. any help appreciated.
Cheers

Matt

Leave them connected, remove the pads, pump the pedal until the pistons move out far enough to see the sides exposed. Compressed air is often good to pop them out unless they are rusted in.

Thanks folks, and into Good Oil.

Hi all

Worked it out with Compressed air got the pistons out, they look pretty good.

2 more questions.

what is the best way to clean the calipers, I have trited degreaser and brake parts cleaner. any ideas? ... petrol... Kero?

would the pistons work better If I polished them on the buffer or do they work better with the matt finish?

cheers

Matt.

Originally Posted by mattg

Hi all

Worked it out with Compressed air got the pistons out, they look pretty good.

2 more questions.

what is the best way to clean the calipers, I have trited degreaser and brake parts cleaner. any ideas? ... petrol... Kero?

would the pistons work better If I polished them on the buffer or do they work better with the matt finish?

cheers

Matt.

Soap and water, and a stiff brush. Works a treat and then just make sure its perfectly dry before refitting. Leave the matt finish as it allows brake fluid to lube the seals just enough.

Originally Posted by bee utey

Soap and water, and a stiff brush. Works a treat and then just make sure its perfectly dry before refitting. Leave the matt finish as it allows brake fluid to lube the seals just enough.

Thanks

I've given the it a go with the stiff brush and soap just hoping for a more solvent solution. I will be painting them once I get them clean, just need a clean surface to paint.

Cheers

Matt

All Done.

I found the best thing to clean them was McGuires Hot Rims cleaner. worked a treat then wire wheel in the drill.

Ended up going for the 4000 series DBA rotors with Braided lines from ROVA craft and EBC Green Stuff pads and a coat of 3M Caliper Paint. I recon they look the good, hears hoping they stop a good as they look.

Cheers

Matt

oooh shiny

good work. i'll be up for rotors soon so i'm interested in how your set up performs