The screw in pin that secures the brake pads in the caliper has rounded off and I can no longer extract it. Unless any one has any better suggestions I think my only solution is to replace the whole caliper.
One thing to try is to hammer a Torx head bit into the rounded off bolt if you've got one of a suitable size. The extra splines on the Torx bit can often give you more grip/purchase to shift the siezed bolt.
I'm assuming that you've tried all the usual WD40 soaking strategies already?
Pointy mole grip / vise grip pliers clamped on the section of pin between the pads. You might need a new pin afterwards depending on how scored it gets, given that pads may not get that close together.
Pointy mole grip / vise grip pliers clamped on the section of pin between the pads. You might need a new pin afterwards depending on how scored it gets, given that pads may not get that close together.
I don't think there is enough space to get a tool that would turn a slippery 2.5 mm shaft.
I've tried drilling and managed to break my drill bit
I think even if I managed to drill it out I would probably destroy the threads.
So I've ordered a new caliper and will try drilling out when it arrives so I have a backup in case the drilling goes wrong.
I've also extracted the rear pin and put some copper slip on the threads so I don't get a repeat of the problem.
Pointy mole grip / vise grip pliers clamped on the section of pin between the pads. You might need a new pin afterwards depending on how scored it gets, given that pads may not get that close together.
I don't think there is enough space to get a tool that would turn a slippery 2.5 mm shaft.
I've tried drilling and managed to break my drill bit
I think even if I managed to drill it out I would probably destroy the threads.
So I've ordered a new caliper and will try drilling out when it arrives so I have a backup in case the drilling goes wrong.
I've also extracted the rear pin and put some copper slip on the threads so I don't get a repeat of the problem.
It is a delicate task drilling it When you go to the bigger drill the heat generated tends to get it moving befire you get right through .I've done a few and always managed to keep the threads intact .
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I'm assuming that you've tried all the usual WD40 soaking strategies already?
Good idea about the torx head.
1mm drill down tge centre then a 3mm to get the rest out
I've tried drilling and managed to break my drill bit
I think even if I managed to drill it out I would probably destroy the threads.
So I've ordered a new caliper and will try drilling out when it arrives so I have a backup in case the drilling goes wrong.
I've also extracted the rear pin and put some copper slip on the threads so I don't get a repeat of the problem.
When you go to the bigger drill the heat generated tends to get it moving befire you get right through .I've done a few and always managed to keep the threads intact .
Set off this morning and zero braking at the front.
The freeing oil must have corrupted the pads so I might as well give the drilling out another try.
Definitely copperslip on this one.
Just waiting for the weather to moderate and make riding outdoors a pleasure rather than a pain.