northernbstard 84 Report post Posted May 11, 2012 Changing the discs and pads on the Mito, and with moving the caliper out of my way the piston has moved outwards... I've tried the usual route of compressing it back into the caliper but no joy My lad reckons you have screw it back which I tried but the piston has come out even further now (a good inch) tried both clockwise and anti ... Can anyone advise .URGENT' I've got no brakes at the mo Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 11, 2012 Dont know if its right (i doubt it is but worth a guess ) but have you taken the lid off the brake fluid bottle? I think i had to do that when i changed some brakes on a car before so theres no pressure when you squeeze the pistons back in? Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 11, 2012 Yes tried that and also undoing the bleed nipple, feels like hydraulic lock Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 11, 2012 What did you use to squeeze it? I remember using a big G clamp from the shed Other than that, i have no more ideas . Hope you get it sorted though Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 11, 2012 Yes used a big 'fuck off' engineering G clamp but never budged it Lucky fucking Eddie strikes again Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 11, 2012 Is it going back in straight? If its slightly off then im guessing it wont go back in? Does it move if you press the brake pedal really gently? (so it doesnt come out completly) Could you clamp the brake hoses & take the caliper right off & take it apart & refit it all? Thats a bit long winded & might not work though, I have no idea about this btw, im just guessing so dont blame me if it goes wrong Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 11, 2012 Looking like the only option at the moment, fucking German Bosch shite Luckily only started on one rear but will need to work out how to push the piston in before tackling the other 3 ..I'm not stripping all the fuckers down Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 11, 2012 If its the rear is the handbrake on? Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 11, 2012 If its the rear is the handbrake on? No... I ain't that daft Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 11, 2012 You sure? Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 11, 2012 'kin piss take A 'wind up' tool is needed apparently to change bloody brake pads these days Fucking 'wound' me up for sure ... My lads mate is going to borrow one from work tomorrow I shall report back Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 11, 2012 glad you got it sorted Quote Share this post Link to post Share on other sites
Bigdar 62 Report post Posted May 11, 2012 He hasn't yet Glad you might be able to sort it NB Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 11, 2012 Good point glad you found what you need Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 11, 2012 Good starting point though lads Given me a little light at the end of the tunnel Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 12, 2012 Christ tonight what a bloody mare that was All done & dusted now Had to use a rewinding tool to get the pistons on the rear to retract but the one that was giving me the problem was a right twat and after a dozen attempts I packed everything away and resigned myself to stripping it down tomorrow A quick shufty on t'interweb about bosch calipers and Renault Master vans of all things?... I had another crack at it and the bastard played ball Dropped a bollock though Shot off down the street and realised I hadn't tightened up all the wheel bolts properly Proper expert now on MiTo brakes Quote Share this post Link to post Share on other sites
LJ_GQV 115 Report post Posted May 12, 2012 i done that once with the wheel bolts. 'might' have driven a hundred miles or so though, motorway, lanes, dual carriageways then heard a knocking & id lost a bolt Glad its done Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 12, 2012 Same here mate Bit of a bastard though when you can't even change your own pads these days without the need of specialist tools Seen thicker crackers than the old front pads though Quote Share this post Link to post Share on other sites
Smaky 73 Report post Posted May 13, 2012 What's the mystery? It's been the case for over 20 years that you need a wind back tool to reset the rear callipers on Alfas, why has this been such a mare? Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 13, 2012 What's the mystery? It's been the case for over 20 years that you need a wind back tool to reset the rear callipers on Alfas, why has this been such a mare? Never had an Alfa only a van and a bike Quote Share this post Link to post Share on other sites
Smaky 73 Report post Posted May 13, 2012 A little research in future will help guarg against misfortune, btw, every time you pulled the cable arm, that was causing the piston to become erect. Quote Share this post Link to post Share on other sites
northernbstard 84 Report post Posted May 14, 2012 A little research in future will help guarg against misfortune, btw, every time you pulled the cable arm, that was causing the piston to become erect. Feel a bit spongy tbh any tips Handbrake is spot on though, can only lift it up an inch Quote Share this post Link to post Share on other sites
Smaky 73 Report post Posted May 16, 2012 Firstly unwind the handbrake cable tension under the handle then you wind the brake calipers in and fit the pads, next you need to pump the pedal till it goes firm again and then set the handbrake tension so that when the handbrake is off the arm on the calliper is resting on the stop, one click should then lift both calipers off the stops, 4 - 5 clicks should be fully applied. If the pedal stil feels spongy then either there is a lot of air in the fluid or a lot of moisture/fluid degridation, either way a complete system bleed is recommended. Quote Share this post Link to post Share on other sites