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Model specific boards => Golf mk3 => Topic started by: AdamR on 21 October 2010, 18:52

Title: Rear brake carrier removal help - please!
Post by: AdamR on 21 October 2010, 18:52
Hello all,

After a bit of help/some suggestions please!

Currently trying to remove the rear brake caliper carrier on my MK3 so I can get the disc rotor off and replace the wheel bearings.

I'm using the guide (http://faculty.ccp.edu/faculty/dreed/Campingart/jettatech/rearbrakes/index.htm) but the only bit that doesn't make sense is how to remove the 8mm allen key bolts (http://faculty.ccp.edu/faculty/dreed/Campingart/jettatech/rearbrakes/Dsc03061.jpg) - there is absolutely no way that technique will work!

I've had the bolt soaked in penetrating lube all afternoon, but even with a 2 foot long lever on my allen key I can't get the bolt to budge! Tried 'shocking' it by hammering the allen key but no luck... Yes, I am going the right way   :evil:

Any ideas? Break out the blowtorch? Give the head of the bolt a good smack to try and shock it loose? Edit: Tried that, no luck... Allen key fitting in the bolt now looks a bit like a Torx fitting, don't think it'll be long before it's rounded out... :(

Thanks!
Adam
Title: Re: Rear brake carrier removal help - please!
Post by: Leon27 on 21 October 2010, 19:19

Mine were the same. Are you using allen sockets or an allen key? Id use a socket and extension, give it a beating so it sits nicely and use a long ratchet to get it off.

Mine were so tight they did round but I have the benefit of owning bolt grippers on a 3/8 drive. Used a long ratchet inside a long pipe and lost some skin but at least it came off
Title: Re: Rear brake carrier removal help - please!
Post by: Dan_GTi8v on 21 October 2010, 19:20
I just used a normal allen key with a bar on the end and gave it  bit of a whack :P
Title: Re: Rear brake carrier removal help - please!
Post by: AdamR on 21 October 2010, 19:24
Thanks for the tips guys - I envisaged problems so ordered some a bolt gripper set earlier today... Using an allen key at the moment but I think an allen socket would be a good idea as you said... less flex and less 'twist'... Halfords here I come!

There's enough room to get a good swing on the rear-most bolt, but the other one located right next to the ABS sensor... how on earth did you get an extension bar in there!?

Cheers!
Title: Re: Rear brake carrier removal help - please!
Post by: AdamR on 21 October 2010, 20:27
Hellfrauds retards had lost the key to the tool cabinet... had to buy the bog standard tool... Thought I felt the bolt loosening, but... evidently not  :grin:

(http://www.tartybikes.co.uk/media/car/dead.jpg)

Fail.
Title: Re: Rear brake carrier removal help - please!
Post by: robz on 21 October 2010, 20:44
Tbh mate. I had the same problem, ended up getting a hammer to te backnof the caliper and hitting it backwards and forwards till the bolt let go! But means ya still need to get one bolt out!
Title: Re: Rear brake carrier removal help - please!
Post by: AdamR on 21 October 2010, 20:47
Yeah I did wonder about twitting the crap out of it, haha. Nothing is ever simple!!
Title: Re: Rear brake carrier removal help - please!
Post by: robz on 21 October 2010, 21:03
If in doubt, hammer lol
Title: Re: Rear brake carrier removal help - please!
Post by: vwscottie on 21 October 2010, 21:17
I ended up using a angle grinder and cutting the bolt heads off :evil:, luckily i had some spare bolts in the garage :smiley:
Title: Re: Rear brake carrier removal help - please!
Post by: robz on 21 October 2010, 21:18
Don't blame ya lol
Title: Re: Rear brake carrier removal help - please!
Post by: AudiA8Quattro on 22 October 2010, 00:10
Irwin extractors.
They work no hassle.
Title: Re: Rear brake carrier removal help - please!
Post by: AdamR on 22 October 2010, 09:00
Awesome - thanks for that. Ordered some yesterday (before this 'ordeal' as I had a hunch it might end up like this...) so I'll report back. Thanks everyone!
Title: Re: Rear brake carrier removal help - please!
Post by: stokeballoon on 22 October 2010, 09:44
Irwin extractors.
They work no hassle.

x2. 
Title: Re: Rear brake carrier removal help - please!
Post by: Dubbyboy on 22 October 2010, 15:31
I had this a month or two back and this is what I did.

Ensure you start with the lower bolt first as you risk damaging the ABS sensor.

1. If you have access to a blow torch (i used a pencil blow torch), aim the point of the blue flame into the centre of the bolt (the recessed part where the allen key fits) and keep it there for a minute or two. - This will heat the centre of the bolt up thus breaking the rusty bond between the bolt and hub.
2. Clamp some mole grips (or vice grips) as tight as you can (they really to need to be as tight as you can get them) and attempt to undo the bolt.
3. This may take a few attempts, but trust me, it works.
4. Once you have the first the bolt out, clamp the grips on to the other bolt and use the carrier to undo the bolt (i.e. move the carrier and not the grips)

You may need to replace the bolts, I replaced them with regular hex bolts as at least I can get a better bite with a socket in the future.

Hope this helps.
Title: Re: Rear brake carrier removal help - please!
Post by: AdamR on 22 October 2010, 15:34
Thanks a lot for the walkthrough! I'm gonna grab a blowtorch later and try again with the allen key, if that fails then I'll break out the mole grips, and after that the Irwin extractor set... I WILL win  :evil: haha

Yeh, hex bolts seem a better bet especially for the 'lower' bolt (the one away from the ABS sensor)... and plenty of copper grease!

Thanks again,
Adam
Title: Re: Rear brake carrier removal help - please!
Post by: LowlifeDubber on 22 October 2010, 17:49
I always use this,works a treat on them and also the cross head screws that hold the front discs in place that are made of cheese.
When you tw*t the end the other end twists and does striaght away.
Never failed me yet.Oldskool tools ftw!
If you want to borrow it just gimme a shout.

(http://www.homedepot.ca/wcsstore/HomeDepotCanada/images/catalog/15600.76008_4.jpg)
Title: Re: Rear brake carrier removal help - please!
Post by: AdamR on 22 October 2010, 21:02
That tool is pretty crafty! Thanks very much for the offer but there's no room to use it... plus I battled with a blowtorch and a better allen key socket and I won  :cool: Very satisfying, if a bit of a pain in the arse!

Thanks very much for everybody's help  :smiley:
Title: Re: Rear brake carrier removal help - please!
Post by: owenfranssen on 02 October 2012, 13:01
Sorry for reviving an old thread, but I'm going to be having this problem soon (I've already tried once and backed off). The likelihood is these bolts are going to ned to be replaced once removed, so what hex type bolt would suit as replacements?
Title: Re: Rear brake carrier removal help - please!
Post by: Metallix on 02 October 2012, 13:51
Stilsons / pipe wrench.   Job done.
Title: Re: Rear brake carrier removal help - please!
Post by: thai-wronghorse on 02 October 2012, 18:02
Stilsons / pipe wrench.   Job done.

You'll be lucky unless the rear beam has been removed from the car.
Title: Re: Rear brake carrier removal help - please!
Post by: Gavv8 on 02 October 2012, 19:15
I always use this,works a treat on them and also the cross head screws that hold the front discs in place that are made of cheese.
When you tw*t the end the other end twists and does striaght away.
Never failed me yet.Oldskool tools ftw!
If you want to borrow it just gimme a shout.

(http://www.homedepot.ca/wcsstore/HomeDepotCanada/images/catalog/15600.76008_4.jpg)
I've got one of these and they are good but there is nowhere near enough space to use one on the top bolt, i use heat and just kept flexing the extension bar until they cracked and came out but i'm replacing them with hex bolts for future ease of removal when i replace the rear beam with a fresh set of beam bushes.
Title: Re: Rear brake carrier removal help - please!
Post by: Metallix on 03 October 2012, 08:51
Up on a ramp, access was fine  :evil:

You could jack it up high & undo the bolts to the shocks, letting beam swing down
Title: Re: Rear brake carrier removal help - please!
Post by: thai-wronghorse on 03 October 2012, 09:00
Up on a ramp, access was fine  :evil:

You could jack it up high & undo the bolts to the shocks, letting beam swing down

This is what i did last time, i also undid the exhaust backbox mounting point so i could get better access to the upper nearside bolt.