Rounded off rear brake caliper bolt.

AndyN01 · 24th August 2018, 15:31

Hi all,

The offending article is drivers side rear.

Item 11 here: https://rimmerbros.com/Item--i-GRID001572

Some lovely person has put it in with the strength of a gorilla

. Of course, the bottom one came out OK. The top one is solid and now rounded off (13mm Halfords Professional ring spanner - unfortunately 12 point but I think most rings are?).

I can't get in with my 1/2" drive 6 point socket (or my 3/8" or my 1/4" drive sockets) - otherwise I'd have done that to start with. Too much suspension in the way

.

I can't see any easy way to get at it. I've tried Mole grips which didn't work. Small Stilsons maybe? Perhaps heat the carrier but I still can't get a good purchase on the head of the bolt.

Are there any "extraction" tools in the form of a ring spanner? Or one of those that drives on the flats (Metrinch? UK stockist?)

Or is it take the whole hub off to tackle it with plenty of space and possibly a bolt extraction socket?

Help and suggestions gratefully received.

Andy.

ratchet · 24th August 2018, 15:46

As a last resort you may be able to lever the caliper upwards using a bottle jack on the bottom of the caliper. The lever action may free the bolt slightly.

Mr Bone · 24th August 2018, 15:47

Here you go, pricey though

https://www.hall-fast.com/metrinch-c...iABEgJz0vD_BwE

paul d · 24th August 2018, 16:07

Answer your phone

Regards

Paul

AndyN01 · 24th August 2018, 16:53

Quote:

Originally Posted by Mr Bone

Here you go, pricey though

https://www.hall-fast.com/metrinch-c...iABEgJz0vD_BwE

Indeed

.

BUT, if it does the job and will doubtless do many more maybe worth the investment

.

Good find - I couldn't track down anywhere that stocked single item Metrinch.

Cheers.

Andy.

sewerman · 24th August 2018, 16:53

I'm assuming you've taken the roll pins out and moved the caliper out the way? There's plenty of room then to get a 1/4" socket in then

Scott

Sent from my SM-T530 using Tapatalk

Heddy · 24th August 2018, 16:57

I've got a 6 sided 1/2" AF ratchet spanner for mine. You might try a 1/2" AF 'cos it's a little tighter (12.7mm)
You could also try tapping the pad carrier with a mallet as you try to undo the bolt. Tap it one way then the other.

Eddy600 · 24th August 2018, 17:18

Did mine on the weekend nearly impossible to get a ratchet in but using these https://www.toolstation.com/shop/p63...EaAiqKEALw_wcB and a spanner over the top works a treat.

Southcoast · 24th August 2018, 18:30

I had to buy a 13mm universal joint socket to get on the top bolt.

mininuts · 24th August 2018, 19:16

Quote:

Originally Posted by Southcoast

I had to buy a 13mm universal joint socket to get on the top bolt.

Like this one?
https://www.ebay.co.uk/itm/BGS-Tools...-/380549128334
Didn’t know you could get these!

24th August 2018, 15:31	#1
AndyN01 This is my second home Toyota RAV4 Join Date: Jun 2017 Location: Tamworth Posts: 3,076 Thanks: 2,478 Thanked 1,579 Times in 968 Posts	Rounded off rear brake caliper bolt. Hi all, The offending article is drivers side rear. Item 11 here: https://rimmerbros.com/Item--i-GRID001572 Some lovely person has put it in with the strength of a gorilla . Of course, the bottom one came out OK. The top one is solid and now rounded off (13mm Halfords Professional ring spanner - unfortunately 12 point but I think most rings are?). I can't get in with my 1/2" drive 6 point socket (or my 3/8" or my 1/4" drive sockets) - otherwise I'd have done that to start with. Too much suspension in the way . I can't see any easy way to get at it. I've tried Mole grips which didn't work. Small Stilsons maybe? Perhaps heat the carrier but I still can't get a good purchase on the head of the bolt. Are there any "extraction" tools in the form of a ring spanner? Or one of those that drives on the flats (Metrinch? UK stockist?) Or is it take the whole hub off to tackle it with plenty of space and possibly a bolt extraction socket? Help and suggestions gratefully received. Andy. Last edited by AndyN01; 24th August 2018 at 15:56..

24th August 2018, 15:47	#3
Mr Bone Gets stuck in 75 Cdt. VW Touareg V6 Tdi. Galaxy 1.9Tdi (x2). R1200GS Join Date: Sep 2012 Location: Planet Zog Posts: 742 Thanks: 169 Thanked 206 Times in 145 Posts	Here you go, pricey though https://www.hall-fast.com/metrinch-c...iABEgJz0vD_BwE __________________ If the world was run by decent honest leaders, we'd have a decent & honest place to live in.

24th August 2018, 16:07	#4
paul d Posted a thing or two Rover 75 Saloon & Saab 93 'vert Join Date: Mar 2013 Location: coventry Posts: 1,378 Thanks: 199 Thanked 204 Times in 162 Posts	Answer your phone Regards Paul __________________ The Colour WAS CELESTIAL...! Meanwhile Back At The Ranch...!!!

24th August 2018, 16:57	#7
Heddy This is my second home None Join Date: Feb 2013 Location: None Posts: 5,556 Thanks: 465 Thanked 1,161 Times in 924 Posts	I've got a 6 sided 1/2" AF ratchet spanner for mine. You might try a 1/2" AF 'cos it's a little tighter (12.7mm) You could also try tapping the pad carrier with a mallet as you try to undo the bolt. Tap it one way then the other. Last edited by Heddy; 24th August 2018 at 17:00.. Reason: More info

24th August 2018, 15:46	#2
ratchet Posted a thing or two ZT-T + CTDI Join Date: Oct 2014 Location: Gone walkabout Posts: 1,185 Thanks: 179 Thanked 361 Times in 289 Posts	As a last resort you may be able to lever the caliper upwards using a bottle jack on the bottom of the caliper. The lever action may free the bolt slightly.

24th August 2018, 16:53	#6
sewerman Gets stuck in MG ZT+ CDTi Join Date: Feb 2014 Location: Wolverhampton Posts: 632 Thanks: 166 Thanked 264 Times in 154 Posts	I'm assuming you've taken the roll pins out and moved the caliper out the way? There's plenty of room then to get a 1/4" socket in then Scott Sent from my SM-T530 using Tapatalk

24th August 2018, 17:18	#8
Eddy600 Loves to post Rover, MG Join Date: Jul 2016 Location: Halifax Posts: 275 Thanks: 19 Thanked 77 Times in 61 Posts	Did mine on the weekend nearly impossible to get a ratchet in but using these https://www.toolstation.com/shop/p63...EaAiqKEALw_wcB and a spanner over the top works a treat.

24th August 2018, 18:30	#9
Southcoast Regular poster Rover 75 Join Date: Jan 2016 Location: a Posts: 84 Thanks: 49 Thanked 20 Times in 16 Posts	I had to buy a 13mm universal joint socket to get on the top bolt.