How do you remove a rounded nut from a brake line?

You have to use a flarenut wrench for those, they round out easily if you use a regular open wrench. At this point soak it in PB blaster and get a good fitting flarenut wrench to try and get it out. This exactly. Flarenut wrench is a must for brake lines.

Can you use a torch on a brake line?

Any torch would be fine — like this one. Yes, MAPP would be hotter, but propane is more than adequate for this job. I wouldn’t heat anything up with the fluid in there. Pinch off the hose and remove at the caliper again.

Is brake fluid flammable?

Though not a volatile liquid, brake fluid is inflammable. The fireball produced by brake fluid igniting on the manifold or exhaust system will burn with sufficient ferocity to spread to other plastics, such as cable covers, air filters and so on, unless quickly extinguished.

How tight should brake line fittings be?

As a general rule from finger tight, continue tightening the nut until you feel it draw down tight, then tighten approximately 1/6″ turn more. Do not over-tighten.

Can you crimp a brake line?

Replacing brake calipers is a very common job. This is the occasion where techs are most likely to crimp rubber brake hoses. Pinching the rubber hose stops brake fluid from leaking onto the floor or the technician. Second, crimping a rubber brake hose prevents air from entering the rest of the hydraulic system.

What is a flare nut?

During assembly, a flare nut is used to secure the flared tubing’s tapered end to the also tapered fitting, producing a pressure-resistant, leak-tight seal. Flared connections offer a high degree of long-term reliability and for this reason are often used in mission-critical and inaccessible locations.

Does brake fluid explode?

Erupts into a red flame. Is brake fluid flammable? Not necessarily. “In studies of the reaction, all the brake fluid is consumed by the fire, but no effort on the part of the researchers can get the brake fluid to ignite on its own.