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Someone asked exactly how the rear caliper parking brake adjuster works and as far as I can tell, there aren't any explanations out there which show how it works so I took a video.
Basically, there's an adjuster that rides on a screw inside the caliper. The piston can move a little bit and the adjuster can move a little bit. The adjuster is clipped inside the piston but there are holes for fluid to move through so there's a little play.
Not using the parking brake doesn't push the adjuster out all the way. The caliper will pull it out but not using the parking brake can result in a softer brake pedal because of that tiny bit of play. The adjuster is mostly for the parking brake - it keeps the engagement of the parking brake even as the brake pads wear down. When you pull the handbrake, it can only move the piston out a little bit. Keeping the hand brake well adjusted keeps the parking brake authority for holding the car.
It was getting dark yesterday so I think my camera gave everything a blue tint because of the blue gloves. I used it anyways because it was the best audio track I was able to do after 10 takes.
http://www.youtube.com/watch?v=nPRNbn9bdJghttp://www.youtube.com/watch?v=SKseK_k7YfM
Basically, there's an adjuster that rides on a screw inside the caliper. The piston can move a little bit and the adjuster can move a little bit. The adjuster is clipped inside the piston but there are holes for fluid to move through so there's a little play.
Not using the parking brake doesn't push the adjuster out all the way. The caliper will pull it out but not using the parking brake can result in a softer brake pedal because of that tiny bit of play. The adjuster is mostly for the parking brake - it keeps the engagement of the parking brake even as the brake pads wear down. When you pull the handbrake, it can only move the piston out a little bit. Keeping the hand brake well adjusted keeps the parking brake authority for holding the car.
It was getting dark yesterday so I think my camera gave everything a blue tint because of the blue gloves. I used it anyways because it was the best audio track I was able to do after 10 takes.
http://www.youtube.com/watch?v=nPRNbn9bdJghttp://www.youtube.com/watch?v=SKseK_k7YfM