serious help needed please

[leemcochran]

hey.... i wsa out on my bike the other day and te chain slipped off and mashed the bolts on my rear sprocket... so now i tried to tighten them but the chain has mashed the inside to so the allen key just slips round but as i cant tighten them i cant take htem out either... so has anyone got any ideas on how to get them out atall and does anybody know the size of them so i can buy knew ones ready.....

 

[scribbles]

umm u got a grinder? lol nah anyway u can get sum plyers around them?.....other then that only thing i could think of is mayb drilling it out? but that mit **** up the inner threads so errr... this is a tuff one lol

 

[dirttau]

drill a hole in the middle of the bolt and use an ezy out on it

 

[Flarry]

Yeah I was taking the bolts off the sprocket and one snapped so I used a drill and an ezy out.

 

[leemcochran]

lol atm a grinder sounds good...dont wanu sound stupid but whats an easy out or what tha thing u said is lol?? tried the pliers just slips round the bolt like lol get pretty angry with it lol

 

[leemcochran]

all sorted now yay...just hammered a big old torx screw driver in ther...ta 4 the help

 

[Flarry]

I replaced mine with high tensile bolts, and I would recommend you do to.

 

[Juls]

I normally use a grinder or a dremel, put a cut across the bolt, get a BIG flat blade screwdriver, put it into the new slot, then put some vice grips on the screwdriver and she undoes no problemo.

Juls

 

[synrgy]

Try vice grips on the bolt heads first, they will grip better than pliers. If that dont work try dremeling a slot into the head and try a screwdriver, you may need a spanner round the screw driver for leverage.

If that dont work, find a drill smaller than the diameter of the thread on the screw and drill them suckers out. You may need to re-tap the threads again though.