Seized brake caliper pins.

[5hort5]

just started working on the rear calliper and was wondering what the best technique for removing seized brake calliper pins was?

http://i132.photobucket.com/albums/q37/5hort5/cal.jpg

Thanks

[fastdruid]

Soak in plusgas, split caliper & heat up pins before pulling them out with molegrips.

If that fails either cut off flush and drill out or drill a small hole behind (smaller than the dia of the pins) and punch out.

Replace with stainless.

Or do as I did and buy a replacement off ebay off a lower milage GSXR.

Druid

[rowdy]

Soak in plusgas, split caliper & heat up pins before pulling them out with molegrips.

If that fails either cut off flush and drill out or drill a small hole behind (smaller than the dia of the pins) and punch out.

Replace with stainless.

Or do as I did and buy a replacement off ebay off a lower milage GSXR.

DruidRear calipers can be had cheap on ebay, had a little trouble removing mine over christmas. One of the caliper bolts was seized solid, and when I tried to remove it the bolt head rounded off, after breaking my ratchet and a breaker bar used on it.
Payed £20 for special socket bit set for rounded bolt heads and attempted again, this time the bolt snapped, leaving half in the caliper and the other half in the caliper carrier.
£16 got me a spare caliper and caliper carrier.
I would advise though, before bidding on a caliper, that you ask the seller to make sure that all the bolts can be freely undone, including pad retaining pins and bleed nipples.

[5hort5]

Thanks druid, that worked, ish, I split the calliper after a bit of trying, and one pin came out ok, the other one though has sheered off, now I've tried to mole grip it and then hold the grips in a vice and knock the calliper off with a rubber mallet but no joy. How do I get the piston out so I can cut the pin flush and drill it out?

Thanks

si

PS - yer last resort will be go get a calliper from ebay but I'm not at that point yet

http://i132.photobucket.com/albums/q37/5hort5/cal1.jpg

[warrenhewitt10]

is that a caliper from a curvy? my pointys is very very different (just wondering)

[5hort5]

yep curvy

[rowdy]

Yep us pointy owners are lucky, we only have the one caliper pin to wrestle with.

[5hort5]

So how do I get these pistons out then so I can cut the pin?

[rowdy]

Carefully with pliers, but put a cloth between the piston and the pliers or you'll scratch the surface and it'll start to corrode.
Alternativly, put the caliper back on the bike and use the brake pressure to pop the piston out.

[beabert]

You should of used the brake pressure, why does no one not think of this before unscrewing them lol, im guilty of it once.

[5hort5]

yer well I couldn't get the pistons out either way I think they were dead and I sheered off some more bolt and the the drill shifted to the left as i was drilling it out so it's totalled now. :smt093

So anyone got a serviceable rear calliper they can let me have cheap? Does a GSXR one just fit or does it need drilling? I've gone off drilling so am now after something that'll just fit.

[rowdy]

Plenty on ebay, saw one go for a tenner but I needed a carrier with mine.
Not sure what fits curveys, but if druid says gsxr ones do then I would take his word for it, he seems to know his onions.
Have a look in the for sale section or put a post up in the stuff wanted section.

[fastdruid]

Suzuki used the same caliper for *years* (about 20!) on just about every bike. Its only really quite recently they've started to use a new model

I believe (although please check first) that its the GSXR600 97-03, GSXR750 85-03, TL1000 (S&R) all years, GSXR1300 99-07, GS 500 89-03. Certainly all take the same brake pads[1] :)

Its a bit late now but I would have suggested to push in the piston rather than bother to remove it, use either a dremel with a cutting disc or an anglegrinder[2] to flatten off the end of the pin and then centre punch the pin before drilling.

Druid

[1] http://www.ebcbrakesdirect.com/search/default.asp?part=FA63HH&v1=bike&t1=disc&x=0&y=0
[2] I'd go for the anglegrinder myself but that's just me. :-)

[beabert]

Ill be doing the above if i can ever split it. grrrrrrrrrr

[5hort5]

My one tip if you ever want to get the pistons out is before you split it reconnect it and push some fluid through to pop out the pistons, if you don't you'll never be able to get them out.

[beabert]

see other thread :-p

[5hort5]

hehe - why do you think I posted it on two threads lol

[beabert]

Git :-p did i mention the fh014 has a history of setting on fire, hence i got the fh012....

[5hort5]

doubt it it's a honda part so will last longer than the rest of this curvy and we must end this banter now before the wrath of a mod kicks our collective asses