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New Driver

Rusted Brake Line Connections

Any suggestions on freeing up those rusted brake line connections? My 80 Corvette is giving me challenges.  

Community Manager

A few things come to mind:


  1. Make sure to use Flare Nut Wrenches and not ordinary wrenches. 
  2. Soak the threads in penetrating oil, but I'd be very, very afraid of putting heat on this component.
  3. Perhaps I am stating the obvious, but if they are seriously rusty this would be a good time to get new lines.  
Advanced Driver

I agree only as a last resort would I use heat...but it IS a last resort, at least in most cases. I did it not long ago to save a junction.  And then I replaced the line and fluid afterwards.