![]() ![]() If your rotors are out of true, worn too thin or scored by the dragging pads, you'll need to remove and machine or replace them as well. Also, take note that we're talking about calipers here. #Brake caliper diagram manualOne caveat: If your frozen caliper is a rear caliper, with attendant parking-brake cables and internal antipushback hardware, you'll need to consult the service manual for rebuild advice. Price: less than your lunch at the fast-food drive-through window. You rush over to his store and pick up a set of seals and a couple of pints of fresh brake fluid. And he does have generic brake piston seals in your size. One savvy counterman, an old-school guy, has a suggestion: He knows that the cylinder bore on your caliper is common to several other cars. And that scotches your plan for traveling to tomorrow afternoon's car show. #Brake caliper diagram proNo wonder pro mechanics rarely bother to rebuild calipers anymore.īut you've gotten the bad news from at least a half-dozen countermen in the last hour-no rebuilt, or even new, calipers until the middle of next week. Often, the modest price of this rebuilt assembly is less than the over-the-counter price of the aggregate parts you'd have to buy separately to rebuild the unit yourself. #Brake caliper diagram installAll you need to do is install the caliper, bleed it, and you're back on the road in a few minutes. Inside the box with the like-new caliper assembly, you'll find fresh sliding pins and any other hardware that should be replaced-and sometimes, new pads as well. After a quick inspection, it's reassembled with a new piston, seal and bleeder bolt. It will be stripped to the basic casting, cleaned of all vestiges of road grime by automated equipment, and glass-bead-blasted or shot-peened to remove any and all corrosion and rust. Industry-wide, it's common practice to return used calipers to a central rebuilding station where the caliper assembly is rebuilt. Indeed, we picked up a rebuilt caliper for this story at the local NAPA store. Most brake calipers that fail get replaced with either a new part or a rebuilt one. You'll have to rebuild the caliper yourself. A quick trip to the auto parts store, followed by a round of phone calls to dealerships and stores within an increasingly large radius turns up nothing. Now your Saturday morning drive has just mutated from a fun-filled jaunt into an afternoon's worth of work chasing down a replacement caliper. You limp the few blocks home at low speed. Sure enough, one of the front wheels is too hot to touch. As you turn a corner, you catch that unmistakable whiff of burning sweat socks-you've got a dragging brake caliper. A quick warmup and you're off for a loop around town.Īll of which is fine, until the engine seems a little. Off with the cover, and the engine turns over willingly, thank goodness. It's a beautiful spring day, and a perfect time to break the winter seal on the garage and drive around in your classic Corvette, vintage motorcycle or whatever pride and joy you happen to have stashed inside. ![]()
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