Yeah no kidding.
I’m not sure if I mentioned this earlier, but for some reason I’ve had an interference issue with the hydroboost and master cylinder. I’ve had everything apart several times and can’t find any issues, so since I’m into the brakes now, I decided to just make a shim to gain the proper clearance back.
Sheet of aluminum measuring .058”. I used an SBC thermostat housing gasket as a template and just moved the holes out a little bit for the booster bolt pattern.
Perfect fit! With the shim in place, I can measure .007” clearance now between the pin and piston.
Still not sure why there was a clearance issue, but this turned out to be a nice solution!
