Now I put the brake mount assembly back. This thing must have a real name, but I don't know it off the top of my head. It just holds all the brake stuff in place. It was hard to get this off, so I figured I should put it back on just as tightly. So I pounded the handle of the wrench with a mallet a little to snug up those bolts. If I had a torque wrench, I could put it back to the exact specs, but I don't, so I do my best. It's not falling off.
Under the hood is the master brake cylinder. You can see the fluid level is a little low. That's because all that fluid is down in the caliper piston that got extended so far when the brake pads wore down.
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I use a clamp to squeeze the piston back into place.
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And now look at the fluid level. It's higher. We had been getting an intermittent brake warning light when we went up and down hills, and I think that was caused by the low levels of fluid in master cylinder dipping below the sensor there. Now that the level is higher, I expect that light won't be coming on again.