In the process of replacing the master cylinder on my MB and I couldn't help but notice that the copper crush washers on either side of the 'Y' fitting were really crushed. The machined grooves in the Brass 'Y' fitting were mated to the copper washers to the point that the imprints are pressed into the copper. When these were assembled it was torqued so far that the brake light switch side copper washer was mashed into the gap of the banjo bolt. The machine marks on the end of the master cylinder are even visible in the master cylinder side washer. I had the master cylinder off the jeep and needed a vise to break the banjo bolt loose. This thing was on tight. As far as I know this could be the original master cylinder. I've owned the MB since 1984 and I've never had to change the master cylinder until now. While I wait for the new copper washers I thought I would pick the communal brain trust and ask "What is the banjo bolt supposed to be tightened to?". . The fitting was not leaking before it was removed. I want to put it back together with out leaks but how much to tighten the banjo bolt. I know, I know "more pictures", here's two of the MB in my warehouse. Thanks for any help.