Question about Nissan Pulsar
All disc brakes work in a similar way. there are hold down bolts for the calipers which is what pads mount in. there is usually a keeper system that wont allow the pads to just fall out and usually cant be removed until you release the caliper. the hold down bolts may be bolt heads, allen heads or a larger star bit head. once the pads are removed you need to check the fex hoses condition and the rotors condition before you just slap a pair of new pads on. if the car had a slowregular wobble feel as you applied the brakes the rotors are likely warped from heat and need to be replaced or turned if the y are the type that can be turned. the caliper piston need to carefully be pushed back into the caliper. you need to watch your brake fluid resivoir while you do this as the fluid level will come up a little as you compress the cylinder back into the caliper. if you do all four disc brakes it can rarely even overflow depending on if you have added brake fluid lately. dont leave the cover for the brake resivoir off or the cap to the brake fluid off as brake fluid will draw moisure from the air quickly an affect the performance of the fluid if it gets too much water in it.
the best tool to sue to get the pistons back in can be purchased from your parts store for under 20 dollars and evenly and slowly compresses the piston back in. if you dont have one or choose not to buy one a mid size c clamp works well to. the main thing is not to get the caliper piston stuck by pushing it back in unevenly. this can require you to replace the caliper which would then require the brakes be bleed etc.
once back the brakes shoes can be put in place making sure you have the inner and outer shoes oriented correctly. some cars the pads are the same and in some they are different. there is a great little product called disc brake quiet that you smear on the bake of the new pads which prevents them from rattling or making any noise.
if all else checks out you now put the pad keepers back in which can sometimes be a challenge if your new at it then re mount the caliper on the car.check the brake fluid level and the operation of the brakes before you put the wheel back on then take a safe test drive. if done correcrly the brakes should feel smoother than they did and stop evenly without making any noise.
this is just a primer on disc brake replacement and requires skill and expertise and observation of other parts as you perform this. mechanics do this automatically since they may do 5-10 brake jobs a day so this advice is for informational use only and does not mean you are skilled enough to do this safely but this is the the basics on how to do it. good luck.
Posted on Jun 04, 2010
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Posted on Jan 02, 2017
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