Seized brake caliper pins. - SV650.org

5hort5 · 16-01-10, 12:34 PM

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

Thanks

fastdruid · 16-01-10, 12:53 PM

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 · 16-01-10, 01:43 PM

Quote:

Originally Posted by 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

Rear 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 · 16-01-10, 02:40 PM

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

16-01-10, 02:43 PM

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

5hort5 · 16-01-10, 02:44 PM

yep curvy

rowdy · 16-01-10, 03:05 PM

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

5hort5 · 16-01-10, 03:06 PM

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

rowdy · 16-01-10, 03:09 PM

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.

16-01-10, 03:14 PM

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

16-01-10, 12:34 PM	#1
5hort5 Member Join Date: May 2006 Location: Newcastle Posts: 872	Seized brake caliper pins. just started working on the rear calliper and was wondering what the best technique for removing seized brake calliper pins was? Thanks

16-01-10, 12:53 PM	#2
fastdruid Member Mega Poster Join Date: Jul 2003 Location: W Mids Posts: 2,037	Re: Seized brake calliper pins 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 __________________ '00 SV700S - '94 RVF400R - '97 RVF400R - '88 VFR750F

16-01-10, 02:40 PM	#4
5hort5 Member Join Date: May 2006 Location: Newcastle Posts: 872	Re: Seized brake calliper pins 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 Last edited by 5hort5; 16-01-10 at 02:41 PM.

16-01-10, 02:43 PM	#5
warrenhewitt10 Guest Posts: n/a	Re: Seized brake calliper pins is that a caliper from a curvy? my pointys is very very different (just wondering)

16-01-10, 02:44 PM	#6
5hort5 Member Join Date: May 2006 Location: Newcastle Posts: 872	Re: Seized brake calliper pins yep curvy

16-01-10, 03:05 PM	#7
rowdy Member Join Date: Apr 2008 Posts: 615	Re: Seized brake calliper pins Yep us pointy owners are lucky, we only have the one caliper pin to wrestle with. __________________ Silver pointy sk3, tail tidy, single seat cowl, fairing lowers, smoke double bubble screen, carbon hugger and front mudguard, full race M4 system, K&N filter, GSXR1000K2 forks, wheel and discs, GSXR750 calipers, HEL braided lines, TL1000s clip-ons, Gilles rearsets, Chinese cnc levers, led indies.

16-01-10, 03:06 PM	#8
5hort5 Member Join Date: May 2006 Location: Newcastle Posts: 872	Re: Seized brake calliper pins So how do I get these pistons out then so I can cut the pin?

16-01-10, 03:09 PM	#9
rowdy Member Join Date: Apr 2008 Posts: 615	Re: Seized brake calliper pins 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. __________________ Silver pointy sk3, tail tidy, single seat cowl, fairing lowers, smoke double bubble screen, carbon hugger and front mudguard, full race M4 system, K&N filter, GSXR1000K2 forks, wheel and discs, GSXR750 calipers, HEL braided lines, TL1000s clip-ons, Gilles rearsets, Chinese cnc levers, led indies. Last edited by rowdy; 16-01-10 at 03:12 PM.

16-01-10, 03:14 PM	#10
beabert Guest Posts: n/a	Re: Seized brake calliper pins You should of used the brake pressure, why does no one not think of this before unscrewing them lol, im guilty of it once.

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