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Feb 14, 2010 13:58:06 GMT
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Afternoon,
Trying to remove my brake caliber so I can replace the front disc's. One bolt has started to round. It is 13mm, I have tried to hammer on a 12mm socket with no luck. So what sized imperial socket falls between 13mm and 12mm?
If there is a size I'll try that first, before trying to weld another bolt onto the rounded bolt head. As I have not got great access all the way round to weld.
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deejay
Part of things
WELSH DRAGGIN'
Posts: 634
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Feb 14, 2010 14:03:49 GMT
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Get yourself a 6 point socket instead of 12 point they grip better and are less likely to round it off matey, also try a half inch socket as half inch = 12.7 mm
HTH, Dean.
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Feb 14, 2010 14:05:43 GMT
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WHS ^
Much better grip with a hex socket than a bi hex,should do the job !
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Feb 14, 2010 14:29:37 GMT
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Use Stilson wrenches. I've never known a nut to be non-defeated by mine.  These are plumbers ones, you can get more mechanical orientated ones. The harder you turn, the tighter the grip gets. |
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Last Edit: Feb 14, 2010 15:00:09 GMT by DavidB
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Feb 14, 2010 14:40:01 GMT
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irwin bolt grippers will have it off
or try a hammer and chisel to bash it anticlockwise , once youve nudged it a quarter turn pliers will undo it
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91 golf g60, 89 golf 16v , 88 polo breadvan
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rounded 13mm boltBenzBoy
@benzboy
Club Retro Rides Member 7
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Feb 14, 2010 17:13:03 GMT
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irwin bolt grippers will have it off Another vote for Irwin bolt removers. Screw-Fix do a set for about a tenner I think. |
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Last Edit: Feb 14, 2010 17:13:37 GMT by BenzBoy
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Feb 14, 2010 17:54:33 GMT
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rounded 13mm boltBenzBoy
@benzboy
Club Retro Rides Member 7
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Feb 14, 2010 18:43:23 GMT
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That's them. Must've been twenty quid at Screwfix, it was a while ago. Worth it though! Stilsons are great if you have a lot of room around the bolt head to get them on, and a space to give the handle some decent leverage. Either will get the job done!  |
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Feb 14, 2010 18:50:31 GMT
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well worth having the irwins in the tool box...they fit anywhere a slightly big socket would
not failed me yet
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91 golf g60, 89 golf 16v , 88 polo breadvan
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Feb 15, 2010 18:52:05 GMT
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the irwins are the best bit of kit ive got to get me out the curse word lol
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thrud
Part of things
Posts: 162
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Feb 15, 2010 19:04:01 GMT
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id also opt for a decent hex socket & as a last resort a 1/2 inch or if push comes to shove 12mm 12 point & a BF hammer to apply it
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1976 cavalier coupe , 1985 manta gte hatch , daily 2001 rover 75 cdti
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Feb 15, 2010 20:13:09 GMT
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last time I had that problem I ground a hexagon head a size smaller on the bolt, it wasnt prefect, but it shifted it
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Feb 15, 2010 20:15:41 GMT
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got it off thanks guys
a proper hex socket rather than a bi hex socket did it in conjunction with a long bar.
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Feb 15, 2010 20:30:20 GMT
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Irwin bits are amazing - I've got some locals are welcome to borrow.
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Anglia68
Posted a lot
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Posts: 2,049
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Feb 15, 2010 21:34:17 GMT
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I use an old trick of wrapping a short length of grit paper,60 or 80 grit or whatever comes to hand but coarser the better,around the bolt head and then tapping the socket over it to make a nice tight fit. It also works with mole grips even when the grips on their own just chew up the head.  |
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