Piston Tool?

[JamieD]

I'm having real problems getting a front brake piston to wind in on a 900 1984... have got the brake disc and pads out of the way for better access, but its not budging...

I tried one of the special tools (from PFS) but its snapped in 2... is there any other tools that are a little more sturdy that will fit? Circlip pliers for instance?

[Earth Brown]

if you remove the caliper from the spindle and remove the rotor, you can remount the caliper and use a pair of blunt punches with a screwdriver between them as a lever to twist it back in, that worked for me on a trip where i forgot my caliper tool and had brake trouble, sometimes if they wont move you will have to get a new caliper.

[JamieD]

well I now have the whole caliper off and in a vice - still cant get the piston either in our out. there is movement if you put pressure on pusing in, but I can't get it to wind... is there a tactic to this?

I'm really hesitant to buy a replacement caliper as the car only cost £60 and am trying to get MOT'd as cheaply as possible...

[jefspg]

Most likely the piston is seized from a bad seal.

If you can get the piston out and it's not completely rusted you can just get a rebuild kit and put it back together.

If the piston is stuck or the outside of the piston is damaged, you have no choice but to get either a new/rebuilt caliper or find someone to give you a new piston to replace you damaged one.