What to Do When the Caliper Makes Metal Clanking Noises?
2 Answers
Remove the two caliper pins on the brake pump and apply grease, or replace all non-rubber caliper pins with rubber ones. Below is relevant information about calipers: 1. Introduction: A caliper is a tool used to measure length, categorized into dial calipers and non-dial calipers. External calipers are used to measure the outer diameter of a cylinder or the length of an object, while internal calipers measure the inner diameter of a cylindrical hole or the width of a groove. 2. How to Use Calipers: When taking measurements with external calipers on a steel ruler, one measuring face of the caliper should rest against the end face of the steel ruler, while the other measuring face aligns with the desired measurement mark. The line connecting the two measuring faces should be parallel to the steel ruler. For internal calipers, the method is similar, but the end face of the steel ruler must rest against an auxiliary plane, with one foot of the internal caliper also resting against this plane.
Last time I encountered this issue with the caliper rattling, it was a real headache. That metallic clanging sound is usually caused by a shifted metal shim or loose guide pins. The mechanic taught me a trick: first, press the brake pedal hard a few times to see if the noise disappears. If it still rattles, there's a good chance you'll need to remove the wheel and check the caliper's mounting bolts. Loose bolts not only risk damaging the brake disc but also accelerate brake pad wear. It's best to re-tighten them with a torque wrench, making sure to follow the manufacturer's specified parameters. While you're at it, check if the dust boots are torn—dry guide pins without lubrication are like rusty door hinges, squeaking and creaking enough to drive anyone crazy.
