Leaking Master Cylinder?

Joined
Jan 1, 2011
Messages
214
Location
Tempe, Arizona
From the stains, does anyone have an idea what I need to do to fix the leak in the Master Cylinder or Reservoir? I noticed the fluid was down quite a bit and the fluid for the rear brakes is real dark/dirty. I was preparing to flush it when I realized I might have a problem with the master cylinder.

Should I pull it, clean it and rebuild it?

Thanks for the advice!

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Joined
Jan 1, 2011
Messages
214
Location
Tempe, Arizona
If buying new vs rebuilding go with the FJ80 big bore MC.

I’ve been looking at that, I just wasn’t sure what was involved. I have a ‘78 40 with discs in front and drums in the rear. I understand you have to replace the booster with an aftermarket unit, which I think is available, my just not sure what mods are required. Then the brake lines have to be re-rerouted which I understand can be difficult.

Do you have any insights into this change you can share?
 

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