caliper pins sezied... please help

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Been having a few problems with my front brakes, and seeing how its nearly mot time i thought i would change the front and rear pads. When it came to undoing the caliper pins, they wont budge Evil or Very Mad

..

Is there anything i can do to get these out ??? Any little tricks??

The bike is an 07 hyosung gt125r..

Many thanks in advance.. Embarassed

____________________
1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

MarkJ · World Chat Champion Joined: 11 Apr 2006 Karma :

Is it the cap or the actual pin that is seized? I have Nissin calipers with the stupid metal cap on the pins that always seizes. I always undo it by taking the caliper off the fork leg, and pull up a small workbench to rest it on, then give the screw a good wallop from a manual impact driver Thumbs Up

https://upload.wikimedia.org/wikipedia/en/thumb/4/40/ImpactDriverWithBits.png/800px-ImpactDriverWithBits.png

DrDonnyBrago · World Chat Champion Joined: 03 Jan 2010 Karma :

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

MarkJ yeah the clipers have them little covers on them. They actually undone no problems but the pins behind them are the ones which are doing my head in. shop did the pads last time and there is no sign of copper grease on any of the bolts or residue of copper grease which you sometimes find, so wondering did they even bother to grease them...... I may try filling the hole with wd40 and put the caps back on and leave over nite and give them one more go.... Failing that I will get my self a impact wrench and failing that stump god knows how much cash sending the calipers to be done at a shop..
____________________
1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

DrDonnyBrago · World Chat Champion Joined: 03 Jan 2010 Karma :

Scotsman37 · World Chat Champion Joined: 17 Aug 2004 Karma :

Halfords sells a decent impact driver set;

https://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_530655_langId_-1_categoryId_165469

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Just a quick update.. The caliper which had the stuck pins in it is complety dead.. Last nite took the bike to a friends workshop and we had to drill one of the pins out as we couldnt get it undone. So I have binned the caliper and bought a good condition second hand one from a spares dealer I use. My mate reackons the last time the pads was changed ( by a bike shop ) they didnt use any cooper grease as the pin we manged to get out , once we had drilled the head off it was sezied solid with no signs of cooper grease or anything on it. So untill the replacement caliper arrives along with a new disk looks like I will be back to bog standard single disk brake set up up front , as luckly the bike had the twin disk converstion on it..
____________________
1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R