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Model specific boards => Golf mk2 => Topic started by: nikkyboy on 16 October 2008, 22:24

Title: Stubborn caliper bolt
Post by: nikkyboy on 16 October 2008, 22:24
I'm having trouble with a seized top caliper bolt on my 8valve.  Managed to get the bottom one out, but the top one's rounded.

I've tried:
loads of penetrant spray
mole grips - grips evetually give in, slipping off and take chunks out of the bolt
filing the outside edges so I can hammer on a 12mm impact socket - the socket doesn't grip as much as whats seized the bolt, and slides off
hitting it with a hammer (probably wouldn't do much but made me feel better :grin:)

I'm stumped...any ideas?
Title: Re: Stubborn caliper bolt
Post by: Dolly on 16 October 2008, 22:32
i got a set of irwin bolt/nut extractors knock the tightest fitting one over the bolts and as it turns it grips. i could believe how well these worked on various exhaust bolts ect.

http://shop.ebay.co.uk/?_from=R40&_trksid=m38.l1313&_nkw=irwin+extractor
Title: Re: Stubborn caliper bolt
Post by: nikkyboy on 16 October 2008, 22:42
they look the business and my local screwfix sell them. I'll give it a try tomorrow and let you know how I get on. Thanks for your help!  :smiley:
Title: Re: Stubborn caliper bolt
Post by: Jay on 16 October 2008, 22:48
If that fails, Angle Grinder comes to mind  :evil:
Title: Re: Stubborn caliper bolt
Post by: Mr Blue on 16 October 2008, 22:49
get a blow torch and heat the bolt.

then smack a splined socket over the whole bolt and unscrew. Works well :smiley:
Title: Re: Stubborn caliper bolt
Post by: DarnPB on 17 October 2008, 00:11
Drill the head off the bolt, remove the caliper and then tackle the stud that remains, on a bench.
Title: Re: Stubborn caliper bolt
Post by: nige_s on 17 October 2008, 13:21
A Dremel is your friend, great tools for cutting stubborn nuts and bolts of.  Less dramatic than an angle grinder and ideal for tight spaces. 
Title: Re: Stubborn caliper bolt
Post by: richard s on 17 October 2008, 19:48
get some irwins they dont mess about
Title: Re: Stubborn caliper bolt
Post by: nikkyboy on 17 October 2008, 20:33
The irwins did it, took next to no effort, can't believe it!  Thanks all for the advice  :smiley:
Title: Re: Stubborn caliper bolt
Post by: Dolly on 17 October 2008, 21:21
good aint they  :wink: