Im trying to replace my master cylinder and I cannot get these brake lines off the old master cylinder. I have both metric and standard flare nut wrenchs but nothing fits. I'm just stripping these brake line fittings! Its driving me nuts! And yes, I sprayed them down with PB blaster. How the hell do I get these off without destroying them???

 

Murdoc,

If you have already rounded off the fittings you may need to use a pair of Vice Grips to brak them free. If the fittings are in bad shape you may want to cut them off and replace the fittings being sure to double flare the ends.

 

Some line wrenches fit better than others. I have mostly craftsman tools but the metric set I bought from Advance fit better than the craftsmans.
BTW I think alot of people have vise-grip marks on their line fittings. Sometimes it's the only tool that does the job.

 

yup vise grips are the way to do it thats the only way i could get mine off i even tried heating them up!