Quote:
Originally Posted by rmmagow
1985 300D, faulty rear brakes.
Planning to replace calipers, rotors and flex lines.
Only scared of the flex lines. Any tips to removing the flex line from the metal brake line? Penetrant like PB? Should I try to get the clip off and the flex line out of the mount first? I know to use a brake type wrench on the metal line fitting but is there something else I should be wrenching as a counter hold to trying to get the fitting off the flex line? I have about 1/2 day to get this done and am essentially terrified I will screw something up and need to change a bunch of hard lines. I don't know for 100% if the flex lines are bad, I don't get a squirt from the frozen caliper when undoing the bleeder but am thinking that at 192,000 miles the flex line aught to be changed out anyway.
Done brakes many times, flex lines on other cars (and had a lot of grief) and I just want this to go as smooth and quickly as possible as I need the car to be running ASAP. Other than the brakes, the old girl is running great with new glow plugs and a valve adjustment.
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When I remove any flare nut I get the wrenches in place and try to align them so I can squeeze them together like the handles of a pliers. You can do it to tighten or loosen. If that doesn't work I hold the wrenches with one hand at the nut and strike the wrench a few times until the nut comes loose. In my experience, when I tried to loosen a difficult flare nut, even after using penetrating oil, the flats on the nut start to round off. The impact has worked for me even on really beat looking flare nuts.