How To Change Disc Brake Pads. It's easy!

[Music] so the brake pads on the back here Patrol have had it time to replace them nice easy job good DIY backyard mechanic thing so let's get this wheel off and I'll show you how it all works you'll notice I am appropriately attired here I've got the flannel shirt ready for action I've got the Japanese safety boots double plug or two mate look at that so we're getting the wheel off obviously I've got a jack under and a couple of three ton axle stands so yeah wheel off so when we're talking brakes probably the first thing to consider is is it disc brakes or drum brakes pretty easy to figure out you can google it or you can just take a look at it as you can see this has got a nice silver disc around it that's a disc brake if it's a drum brake it just doesn't have the same look you don't see the braking surface on a drum brake the braking surface is inside the drum disc brakes are my favorite type I don't know why people still use drum brakes on vehicles I hate the things they're hard to service they don't work as good I think they're cheaper I think that's a big thing so this here is the caliper and on some vehicles that whole caliper is going to have to come away but on the patrol and many others there's two bolts here you can loosen one of them remove the other and that whole middle bit will swing away you can pop the pads out so that's what we're gonna do ratchet with a 14 mil socket on it it's going to do the job for that watch your knuckles this is a prime moment for it to suddenly spring loose and cause blood knuckles they're both loose I'm doing with my fingers so it looks like the back calipers have been different to the front actually it won't swing up like the front ones do but because both those bolts will loose yeah that will come away elsewhere here's your pads taking them out I've been hearing a screeching sound the other week but strangely enough wasn't when I applied the brake it was just as I was going down the street so I thought there might be a stone in there or something and we were going on a trip for a weekend I thought I'd better check it out so I pulled the wheel off pulled the brake apart no stones but it's pretty close to worn-out and what's actually been happening is I assumed this brake pads been just as a vibrates lightly in the caliper which they do the little wear limit indicator has been hitting the discs and making this screeching noise so you'll find them on most brake pads this little piece of metal that comes down and protrudes just past the meet of the pad and I can see that's shiny I've got a clean edge on it so that has been rubbing on the disc brake which is how you know it's due for a change you also see on the back there that's just some yellow stop squeal that I sprayed to try and shut it up while I ordered new pads it's sort of you can see where the piston of the caliper has chewed into the backing pad so your new brake pads should come with new backing pads in it speaking of which let's go and get them Calabar brake pads that's what I chose straight off the shelf at super cheap auto or maybe depending on your level of how Hispanic you are Colibri made by FMP the makers of Bendix cool will do the job the difference in how much is on those pads okay a few things to note about you near brake pads it's got this stripe across there that's what caliber call friction track yes so that's designed to help it bedding in also they kindly print on the back which way around it goes so left and right doesn't matter but inner and outer does alright I recommend using some of this stuff it's not essential to the job but you know how sometimes you brakes will squeal even from brand-new well that will help you stop it it's kinda like almost like a glue that doesn't dry just remains a bit tacky the reason you brakes squeal is as you can see on the back of this old pad there's that circle where the piston has worn into the backing pad well that's the piston rubbing around just back and forth gently over thousands and thousands of case makes that squealing noise so this tacky stuff will kind of help that backing pad stick to the piston so what we do with that you buy one of these bottles costs about an hour ten or fifteen dollars you'll never run out not if you're a backyard mechanic anyway we just smear this all across the back we have a swipe around before I not to like really overdo it or else it'll just mush out everywhere and go all over your disc break now before those new pads go in they've gotta compress the piston so come with me to the shared we'll find a brake piston compressor let's go how's your old brake pad wears down your piston on the back moves in to fill that space so when we put new pads in which are two to three times as thick we have to push that piston back out to its original spot to make space for the new pads as we do that it's gonna push our brake fluid back up the liner so make sure you're keeping an eye on that brake reservoir under the bonnet I'll have a look at that in a moment because it's gonna fill up and possibly overflow yeah so it's above the maximum line now it's be dark in there yeah okay not when you've got spot focus yeah so brake reservoir I'm gonna have to drain some of that cuz that's very full this will do the job nice tool Pro vacuum pump normally used for bleeding brakes but it'll do you can use a gigantic syringe as well if you want to go that way just drop the tip and there a little handle sucker dry well not dry but at least down to the below the maximum line now we can pop those new pads in so I conveniently covered up the markings that show which is inner and which is outer with that red goop but I'm a smart man and I remembered that the one with the little stop squeal no telltale squeaky what is this thing called wear limit I remembered that the one with the way limit goes on the inside sometimes you have to push down on these little metal bits that one they're gonna pull that one up slop the pet in and now that I've compressed that piston so pretty much just drop over might also have to eat my words though there's also I neglected to mention these things here slide pins I want to make sure they're moving nice and freely because if they Jam the piston and caliper assembly can't Center itself and then you end up with unevenly worn pads just want to make sure that they're moving okay a bit different on every vehicle but they moving good so we tighten them up there's probably a user manual specification which I would recommend that you follow but not so tight but not so loose that they come out somewhere in the middle there yeah so could you messing around with brakes if they fall apart after you've played with them you can't stop that's a problem so be extra careful double-check that you did up everything tight and if you're like reasonably new to working on your own vehicles I'd recommend getting the torque specifications for any of the bolts you um did use a torque wrench and nip them back up to perfect specification before that wheel goes on and I do the other side there's one more thing we use a bit of brake and parts cleaner on there so try not to get it near your sticky stuff that you put on to stop the squeal because it'll sort of rinse it off and make a mess now I didn't get this disc too greasy but that's the problem if you've got oil or grease on your hands at any point that is not only going to make it less effective its stopping but pretty much ruin your new pad no I know I know man I got the red stuff on my leg no that's never coming off well look Monday's will never squeak again am I pretty enough is my heart too broken oK we've got it all together in the back and once you've done that you're just gonna go straight in and pump that brake pedal until it goes further because we pressed that piston in now there's space between all the pads and piston at a few times bring it all back together you don't do that you helped straighten the car your brakes will go to the floor you might die not cool one more thing to check before you start it up they go back to that brake reservoir and make sure it doesn't need topping up you've sucked fluid out and once you've gone and pumped that pedal flow is gonna have gone back down into the system so put some of the old fluid back in there if you have to but now it's time to go bed the minute so betting in doesn't always have to be done you'll have to refer to whoever makes your brake pads to find that one out but on these caliber pads we do have two so that involves getting the car up to speed 60 kilometers an hour they say and then hitting the brakes light to moderate bringing it all the way down to 10 Kay's an hour so we're at 14 our 5000 I'll process now we've hit a hill once we get over the hill there isn't black behind me it's a little white back and slow it it's outside that's a bad Mulder it and ten and off we go again do that at least 10 times says the box you don't want to come to a complete stop because the heat from those pads coming to a complete stop resting on that disk could actually cause micro fractures in your discs heard that from a mechanic I work with once you also don't want to hit them too hard from 60 and slam them on down to zero because you can warp your rotors damage your pads and here we go for another one watching out for that black thing Keys turned off so that's - they keep going like that for another eight times you did it your champion hopefully didn't hit a tree when you were betting in those breaks so good on you good job if you want to learn to do some on your missing patrol GU or any other vehicle really because I try and make these as generic as possible make sure you subscribe to this channel keep an eye out for the future videos and go back and this stage look at the past 15 backyard mechanic videos it's plenty there for everyone so thanks again for watching see you next time something breaks

Channel: Intents

Views: 12,294

Rating: 4.961165 out of 5

Keywords: how to, brake pads, how to replace brake pads, nissan brake pads, nissan patrol brake pads, do it yourself, brake pads do it yourself, brake pads replacement, brake pads noise, do it yourself hobby, intents offroad, backyard mechanic, backyard mechanic patrol, backyard mechanic intents offroad, how to change brake pads easy, rear brake pads, rear brake pads nissan patrol

Id: S4t9nKTNLQk

Length: 13min 30sec (810 seconds)

Published: Fri Aug 16 2019