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General => The garage => Topic started by: tsr_adi on 13 January 2011, 16:46

Title: how do I get out a rounded off caliper bolt?
Post by: tsr_adi on 13 January 2011, 16:46

I was going to fit my gti brakes today but the bottom caliper bolt I need to undo to swing the caliper up is rounded off good and proper. Tried hammering in an allen key bit and a torx bit but its not having it. I don't have a welder to welding on another bolt is out of the question. Any ideas?

Title: Re: how do I get out a rounded off caliper bolt?
Post by: emery1990 on 13 January 2011, 18:19

http://www.screwfix.com/prods/96028/Van-Car-Accessories/Sockets-Hex/Irwin-5-Piece-Bolt-Grip-Nut-Remover-Set?cm_mmc=GoogleBase-_-Datafeed-_-Van%20and%20Car%20Accessories-_-Irwin%205%20Piece%20Bolt%20Grip%20Nut%20Remover%20Set

Could try these, but arnt the caliper bolts 17mm, if so they prob do other sizes for sale. Mines opposite to yours and won't screw in, thats confusing!

Title: Re: how do I get out a rounded off caliper bolt?
Post by: tsr_adi on 14 January 2011, 10:55

mine have a round head and are torx bits inside. I'm gonna try ramming a socket on it or maul grips. But in my experience they can be real tight  :angry:

Title: Re: how do I get out a rounded off caliper bolt?
Post by: LowlifeDubber on 14 January 2011, 11:18

Warm it up and try and chisel it round?I might have a spare one here if you fluck it up proper.

Title: Re: how do I get out a rounded off caliper bolt?
Post by: alexd on 14 January 2011, 12:38

Buy some extruders?

Title: Re: how do I get out a rounded off caliper bolt?
Post by: emery1990 on 14 January 2011, 15:42

Are they hardened steel, maybe you could get some small stilsons on it, will probs be too hard for the teeth to bite though

Title: Re: how do I get out a rounded off caliper bolt?
Post by: AudiA8Quattro on 14 January 2011, 23:50

Irwin extractors will move anything.

Title: Re: how do I get out a rounded off caliper bolt?
Post by: Diamond Hell on 15 January 2011, 08:59

Quote from: AudiA8Quattro on 14 January 2011, 23:50

Irwin extractors will move anything.

Or more likely shear off.  :grin:

Get some heat on it is probably your best bet...

Or go find a set of 280mm brakes, complete with the hubs and complete a worthwhile upgrade.

Title: Re: how do I get out a rounded off caliper bolt?
Post by: tsr_adi on 15 January 2011, 10:21

Already bought vented 239mm discs and brembo pads now  :grin:

I've got some small stilsons, not sure if theres enough room in there to get a grip on though. I'l have to remove the rubber bit that surrounds it 1st...

Title: Re: how do I get out a rounded off caliper bolt?
Post by: sharki786 on 15 January 2011, 12:06

Quote from: Diamond Hell on 15 January 2011, 08:59

Quote from: AudiA8Quattro on 14 January 2011, 23:50

Irwin extractors will move anything.

Or more likely shear off.  :grin:

Get some heat on it is probably your best bet...

Or go find a set of 280mm brakes, complete with the hubs and complete a worthwhile upgrade.

+1
LOADS OF HEAT AS DH SAID!! but the extractors might take the bolt out

Title: Re: how do I get out a rounded off caliper bolt?
Post by: danny_p on 15 January 2011, 12:48

i have a set of extractors but they get littel use.  allways found by the time ive given up with my normal methods they have been ineffective as well but i can see them being usefull if you don't have as meany tools or tricks to use.

but at the end of the day heat is most effective, a Mapp gas torch will ofen do but can take a while,  but the oxy spanner is king just not an ption for most

Title: Re: how do I get out a rounded off caliper bolt?
Post by: AudiA8Quattro on 15 January 2011, 22:59

Quote from: Diamond Hell on 15 January 2011, 08:59

Quote from: AudiA8Quattro on 14 January 2011, 23:50

Irwin extractors will move anything.

Or more likely shear off.  :grin:

At least he will get the caliper off  :grin:

Title: Re: how do I get out a rounded off caliper bolt?
Post by: tsr_adi on 16 January 2011, 09:48

yea heating it up isn't really an option. I'l try the old stillies on it.