DT125R ARCHIVE

MDK · DTR Legend

rear caliper problem

BigPhil · DTR Senior Member

Hi guys, bit of a problem with my rear caliper.

went to remove my rear wheel as i was taking it to get a new tire and the left side pad just fell out the caliper.. was also in 2 pieces as well but im guessing that's just a defective part and nothing to do with the caliper, any way went to check it out and not great with brakes so cant really tell what the problem is apart from the fact the pad isnt secured wat so ever so wont stay in obviously..

guessing i need a new caliper? the bleed nipple has also snapped off so another reason to be replaced

BigPhil · DTR Senior Member

oh ok, yeah i know not to press the brake in which i havent done but it seems to have compressed by itself as i was trying to hold the pad in while putting the disk in the small gap and couldnt do it for ****. was actually broke in 2, the pad part had come away from the metal plate if you get me lol

so there nothing wrong it i just need to try and pry it open more put wheel in while keeping pad in place

MDK · DTR Legend

yeah its a bugger to push back in I use one of those Sealant Gun things most people have one laying around and great for this job

one of these type http://www.screwfix.com/p/power-pro-sealant-gun/86771?kpid=86771&cm_mmc=Google-_-Product%20Listing%20Ads-_-Sales%20Tracking-_-sales%20tracking%20url&gclid=CKifjbvrz7gCFfMdtAodbBUA9g

even used these in the past with a little bit wood each side and open fully so not to damage realy is a must have tool

BigPhil · DTR Senior Member

literally cant get it to budge tried sealent gun and it was going to break before the piston was gunna retract and my grips arnt big enough

BigPhil · DTR Senior Member

got the piston used a small g clamp works a treat, just cant get the pads to stay in when trying to put the wheel in for **** having a break now before i smash the thing up

MDK · DTR Legend

maybe try it with the refill fluid cap off you may see it push fluid out or over flow so have a rag ready your working against a air tight system atm it should push in easy with cap open thats how I bleed with out a nipple by pushing any air back out .

BigPhil · DTR Senior Member

got piston in just cant get pads to stay in while putting wheel outside on just goes on a slant and then wheel cant get in

MDK · DTR Legend

looked around for any videos or tutorials but cant find any ... and can be tricky for some I could do it in mins but find it hard to type how to if you get what I mean .

dont try putting them in wilst the caliper is in place it needs to be off the disc put them in place with the little spring clip things if you have them and wilst holding them in place lower the caliper on to the disc

this kinda gives a idea
www.youtube.com/watch

MDK · DTR Legend

take it you have the service manual ? gives some info on fitting the pads

http://www.ytcn.nl/archief/Archief/DT%20manuals/DT%20125%20R%20Haynes%20Service%20Manual%20%28ENG%29%201988-2002.pdf

BigPhil · DTR Senior Member

i couldnt keep the spacers in either side and caliper at the same time and was getting really wound up but i just thought i could bolt the wheel in place the take the caliper of the bracket its kept on then put the pads in and slide caliper on carefully ?

and i only have a clip on the left side :/

MDK · DTR Legend

yeah thats the right idea the wheel in place fit the pads and slide caliper with pads fitted over disc the clip things can help think they are just anti vibration clip things ? we all been there when something gets you mad and I have even hit things with a hammer and fcked the lot up lol best to walk away have a cupa then go back ... once you get them in and done you will look back and think **** why didnt I do that at the start it realy is a simple but fiddly tricky job

BigPhil · DTR Senior Member

cheers for the help mate ill go back to it shortly, yeah i normally walk away then the easy/right way to do it will just pop into my head like in this instance.

MDK · DTR Legend

youtube is a great help sometimes althou you may not find the fix on the same bike it can show you ways to deal with fiddly little jobs

ToySoldier · DTR Legend

you put the wheel into the swingarm with the rear caliper bracket in place with the caliper and pads off then put the pads into the caliper bracket with the 2 little metal clip parts then slid the caliper over onto the pads then bolt up

Calum122 · Guru

Damn i'm glad that i don't run dt brakes anymore. Aprilia ones are a bit better design.

BigPhil · DTR Senior Member

had enough of this now i cant even get the rear wheel back in place.. really winding me up. i haven't had a problem with taking my engine out twice and re fitting it twice on this bike and others nor have i ever had a problem with re fitting a stupid rear wheel !

but i just cant do it ! i cant get both side spacers in and the caliper bracket thing all in place at the same time ! iv tried for ages and iv had enough now !