Removing rounded off hex head caliper mounting bolt?
Discussion
Spent most of this afternoon trying the above without success.
The normally hexagonal hole has been completely rounded!
Can't bang a socket on to it as the recess in the caliper isn't large enough.
My current method has been to try and weld a nut on, but no matter what settings I try on my welder the nut just comes straight off without much torque. Now one of the welding bits has snapped in half in the end of the gun, so NOW I'm currently trying to remove that (just snapped an easi-out bit in it. Maybe I can weld a nut to it...
Any more ideas on the caliper bolt? Seems the only option I have left is to grind straight through the caliper spacer and bolt.
The normally hexagonal hole has been completely rounded!
Can't bang a socket on to it as the recess in the caliper isn't large enough.
My current method has been to try and weld a nut on, but no matter what settings I try on my welder the nut just comes straight off without much torque. Now one of the welding bits has snapped in half in the end of the gun, so NOW I'm currently trying to remove that (just snapped an easi-out bit in it. Maybe I can weld a nut to it...
Any more ideas on the caliper bolt? Seems the only option I have left is to grind straight through the caliper spacer and bolt.
Sorry, as you say its not a hex head bolt, its a socket head!
I don't think it is in that tight, so once I've got something on it with some purchase I've no doubt it will come out, the problem is getting to that point. The welder I have is a MIG 150 Turbo, so it should be up to the job, just not sure why it currently isn't working! Now the socket is full of weld, so can't go along the route of welding an allen key in it.
I don't think it is in that tight, so once I've got something on it with some purchase I've no doubt it will come out, the problem is getting to that point. The welder I have is a MIG 150 Turbo, so it should be up to the job, just not sure why it currently isn't working! Now the socket is full of weld, so can't go along the route of welding an allen key in it.
Some reason no amount of welding things on was getting it to budge. The bits I kept welding either would snap at the weld, or just snap.
Ended up grinding through the bolt behind the caliper (through the spacer). Had to hacksaw half of it due to clearance issues.
Don't think the bolt was seized actually though. The bolt head came out of the caliper easy enough, and the remainder of the bolt came out of the hub relatively easily with some mole grips.
Anyway, problem solved. Thanks for everyone's help.
Ended up grinding through the bolt behind the caliper (through the spacer). Had to hacksaw half of it due to clearance issues.
Don't think the bolt was seized actually though. The bolt head came out of the caliper easy enough, and the remainder of the bolt came out of the hub relatively easily with some mole grips.
Anyway, problem solved. Thanks for everyone's help.
Tanguero said:
Just drill the head off the bolt, dead easy with a hex cap. Then take the stub out with mole grips when the caliper is out of the way.
I'm pretty sure this is what I did in the end!I think I remember that the bolt was either slightly bent or very corroded within the caliper.
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