Quote:
Originally Posted by HuskyMan
Working on the calipers on the 1991 560SEL. I'm using compressed air (brake caliper kit purchased from Kent at mercedes source). I placed a small board between the calipers then hit it with compressed air into a new meyle brake hose. Only one caliper moved.
Question, if I put the caliper back on the car and step on the brake pedal will it unstick the other caliper?
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Using brake hydraulic pressure is a lot more powerful than compressed air. The caliper doesn't appear severely corroded or otherwise not worth rebuilding. So yes, I would mount it on the car.
Push the free piston back in and insert a new brake pad on that side only. Leave the stuck piston side empty with no brake pad, or you can use a very thin worn down brake pad if you have one. The new brake pad will prevent the free piston from travelling much, and the air gap on the other side allows the stuck piston room to move. The brake rotor will prevent it from shooting out and making a mess.