Question about 2001 Hyundai Tiburon
You recently replied to me about a problem I had with my front wheel bearing.Before you would give your opinion you wanted to know how my brake disc is attatched to the wheel hub.
It is attatched by two screws plus the four bolts that hold the wheel on.Also had friend look at old caliper.He said it was a bit rusty but not broken .thinks garage rammed piston back into it when reassembling and if there was a bit of rust up inside it ,this would cause piston to stick.Friend said they could have avoided this by being more gentle and only pushing piston enough to get clearance to insert brake pads.Linda
Hi linda thanks for mail ! as your freind has done the checks on f/caliper/s and explaind his findings is very helpful now if the brake/s are sticking after pads renewal i too am of the opinion that garage has not done a good job however! i will give advice as to what to do now with calipers and hopefully cure prob ? ask your mate to remove wheel thenwire brush all the caliper of rust while still fitted then remove the 2x bolts securing caliper to the carrier to remove caliper holld rear of caliper and pull at an angle so as to ease rear piston back you will be able to remove caliper easily now ? then the pads from caliper NOW if the pads are tight in the carrier this is wrong main causes of sticking the pads should fit easily without resistance as the pads should slide on carrier and release when brake off also slide easily onto disc/s when brake applied ? rust/brake dust form on carrier so if need remove carrier 2x bolts at rear and clean up on w/bench? any thick rust gently file clean (a little bull s--t now i always paint the carrier at this point both for deco with hammerite quick dry paint your choice ? i use red ) whilst waiting use a G clamp and gently push piston back in caliper then wire brush all b/dust/rust etc from within caliper using method as for carrier ? having done this just inspect the new pads ? on the top and bottom edges which locate them in carrier ? remove any excess paint /burrs from them ? now ready for reassemble?? 1/2 hr past ? refit carrier and secure then slip the pads in no problem ? it is good idea/practice to smear the back metal part of pads with copper grease this prevents squeal from brakes as some times happens? now before fitting caliper ? pull out the 2x slide pins with rubber gaitors these are the ones caliper bolts screw into ? these pins are also a cause of sticking too ! wipe clean and copper grease them to lubricate and refit if you push fully in the gaitors will slip home now refit caliper and secure making sure the pins are positioned correct as you will notice as you refit securing bolts ? RECAP all bolts secured brake flex hose to caliper correct not twisted? if so remove and retwist caliper to correct the hose ? NOW! at this point it is policy no matter what ! that you bleed the brake caliper reason?? brake fluid is special because it is incompressable ideal for brakes ? but over time it absorbes moisture and more important heat that is conducted via b/pads and piston thus fluid heats to apoint of losing its density and becomes compressible resulting in spongy brake pedal ? hope you understand so far ? when you help mate to bleed brakes ? if you collect fluid as you bleed in a clear bottle/jar? you will see how fluid has burned dirty colour as clean/clear fluid appears then stop bleading job done !! refit wheel then repeat all i have explained on the ther brake to the letter! you will definately feel a difference in braking ? before you move /drive the car start up and pump brakes they should feel harder and no sticking??? ps brakes should always be bled after any replacement of pads/shoes etc without exception and also at least every 2 years as a matter of good maint for the reasons i have explained ? so i wish you well and hope these instructions and the little bull s--t paint job i always do for the reasons of deco and rust prevent in future both helps and inspires you both?? to diy and save $$$s £££s ? in future come back if you have any queries ? best wishes from uk
Posted on Nov 05, 2008
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Posted on Jan 02, 2017
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