Using Depth Gauge To Check Cylinder And Booster
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Talking over my brake problems with the guys at Classic Performance Products revealed that they sell a double diaphragm booster in 7-inch diameter, so a quick trip to their shop saw me leave with what I hoped would cure the problem. While I had the master cylinder removed from the booster, but not disconnected from the brake lines, I used the depth gauge from the MPB kit to check the cylinder and booster. All was good, with 0.020-inch clearance between the pushrod and the cylinder piston. If this is adjusted incorrectly it may cause the brakes to drag if too tight, or give too much free-play at the pedal if the gap is too large. While the master cylinder was off, I also measured the bore diameter, and came back from CPP with a slightly smaller one in addition to the booster, dropping from 1-inch to 15/16-inch. View Related Article
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