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General Car Chat / Re: Brake bleed nipple removal
« on: 17 May 2012, 20:39:22 »
As with all ideas the proof comes from experimentation. Having freed the screws on my car will I ever have to do it again? With previous vehicles I've planned to carry out the simple task of bleeding brakes to put the ring spanner in place and then, well you know the feeling, do you feel lucky? Well do you? This was the if it doesn't move when I think it should -do something before I break it approach.
Oxy acetylene will certainly apply a lot of heat but with quite a few risks. Even a standard blow torch pointed in the wrong direction is going to cost.
I actually think applying extreme cold to the centre of the bleed screw would be better and "shrink" the screw, it would also make it very brittle. If I get another chance and some liquid nitrogen I may give it a try....
Oxy acetylene will certainly apply a lot of heat but with quite a few risks. Even a standard blow torch pointed in the wrong direction is going to cost.
I actually think applying extreme cold to the centre of the bleed screw would be better and "shrink" the screw, it would also make it very brittle. If I get another chance and some liquid nitrogen I may give it a try....