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Thread: Master Cylinder conversion

  1. #1
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    Master Cylinder conversion

    I did mine too long ago and I cannot remember wasn?t there a disk or some thing to remove from the master cylinder if you are staying with drum brakes all the way around?I just can?t remember but I seem to room recall somebody talking about using a paper clip and fishing it out of the ports on the side of the master cylinder. As I said staying with drum brakes all the way around but I just cannot remember. Thanks

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    Hi there.

    What type of master cylinder did you use? Did it fit without modifications? I'd be interested in doing a similar conversion on my 66 while keeping the drum brakes.

  3. #3
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    Residual Pressure Valve

    Some master cylinders have a Residual Pressure valve (RPV) installed at the outlet. To check, you can use a paperclip to gently probe the opening. If there is resistance just inside the opening, then you likely have one in there. They can come out by installing an oversize screw and then pulling it out. M1Dadio had a post on this some time back but I couldn't find it.
    108VanGuy...
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