Volvo RWD 120-130 Forum

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Brake MC Removal 120-130

I'll be removing the leaky MC to send up to White Post, VA for a rebuild. My skill level is fairly competant.

Is there anything I need to keep in mind as I drain the fluid and begin to unbolt the MC from the firewall?

Pat.








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    Brake MC Removal 120-130

    Hello,

    I like to drain the brake master by sucking it out with a hand held vacuum pump with the proper catch reservoir.

    The nut for the brake line requires a 12mm wrench.

    Check the clevis on the end of the brake master for wear.

    If the holes for the pin are elongated, you should get a new one.

    --
    Eric
    Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
    Torrance, CA 90502








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      Brake MC Removal 120-130

      Years ago a mechanic showed me I could add some fluid to the new MC and pump it by hand right on the bench before installing it. I believe we plugged the outlet port during the installation, then when everything was in place, one person pressed and held the brake pedal while the other connected the line saving a lot of bleeding later.








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        Brake MC Removal 120-130

        Update on Brake MC. Sent it off to White Post Restoration on a Saturday. Called them that next Thursday to see if they had received it and how it was going. They said they had already rebuilt it and it was on its way back to me. So their turn around time is fantastic. Looked great when it got back to me and is now remounted on the firewall and is providing a nice, firm pedal feel, I'm guessing for my miles to come!

        Pat.








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          Brake MC Removal 120-130

          May I ask that they charged for this? I have a '68 dual line that I've pulled and was planning on just replacing but maybe this is a better option.

          Thanks.








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          Brake MC Removal 120-130

          Yeah, bench bleeding saves a whole lot of trouble when final bleeding the whole brake system. I've always put a fitting on the outlet port, with a tube going back into the reservoir. Put the M/C /in a bench vise, using one of the mounting "ears", then slowly pump it by hand until there are no more bubbles appearing in the reservoir. Make sure you have enough fresh fluid (DOT-4 or DOT-5, if you're going that route)in the M/C before you start, and keep it topped off. Plus, some hot, soapy water will wash down any brake fluid you spill in, or on the car. Good luck







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