Siezed brake bleed nipple help

[vmax1974]

Wife told her mate I would fix the water leak into the drivers footwell on her corsa c so a few searches turned up that it was the seal around the brake servo and to do it properly you gotta take the servo out and that means the master cylinder and subsiquendly I gotta re bleed the brakes my worst fear has happened all the nipples are seized and it looks like someone has already been at them with a hammer and chisel and chewed them up so am going to have to remove the calipers and get them out somehow without breaking them in the calipers has anyone got a idiot proof way of doing this without breaking the nipples or could I bring them to someone to remove them for me rears are ok cause I will just change the cylinders also where is a good place to get new nipples

[Stot]

I have always just used mole grips and got new nipples.

edit, You could always use a screw extractor down the nipple hole.

Cheers
Stot

[vmax1974]

Mole grips just rounding them off more screw extractors last resort before getting her mate to buy new calipers lol

[K4KEV]

heat rapid cool...heat rapid cool....heat rapid cool keep doing this till it loosens

[flyerncle]

This sounds all wrong but works,just crack open the pipes to the flexy if you have not already opened the caliper nipples.

I mean the metal pipe to the flexy,it will still be filled with fluid and should work (it has for me in the past 40 odd years).

If not you can do a 80 miles round trip and we can drill them out .

[Stot]

Weld a bolt to it so you can use a spanner on the bolt.

Cheers
Stot

[vmax1974]

This sounds all wrong but works,just crack open the pipes to the flexy if you have not already opened the caliper nipples.

I mean the metal pipe to the flexy,it will still be filled with fluid and should work (it has for me in the past 40 odd years).

If not you can do a 80 miles round trip and we can drill them out .

Am going to take the calipers off so I can get them on the bench maybe get the neighbours oxy acetylene on to them just don't want to bugger the seals and have to get new calipers all else fails it's an 80 mile round trip thanks for the offer

[vmax1974]

Been having a nightmare getting the nipples out got one out with pleny of heat but the other is being stubbon rear is ok cause I will just change the slave cylinders so off to the scrap yard in the morning for a new caliper used to be one of my favourate things to do on a day off