I decided to take on a rear brake pad and rotor replacement this past weekend. I already knew the pads were close to being worn out, and I figured that it would be prudent to replace the rotors as well at ~97K; I was never much of a fan of getting rotors resurfaced. I changed my front pads and rotors a month or two ago, and everything about that job was pretty much straight forward; easy peasy, no headaches, no drama. I kinda knew that the rear brakes would be more of a challenge, but I was not expecting to go to war with my car.
Though I could probably conjure up hundreds of words to describe my negative experience, here are a few that should quickly sum things up.
1.
AAAAAAAAAAARRRRRRRRRRRRRGGGGGGGGHHHHHHHHH!!!!!!!! (Ok, not a real word according to Webster's dictionary.)
2.
PITA! PITA! PITA! (That's 12 words right there.)
3. I almost feel like kicking the engineers who came up with the geometry of the brake mounts and rear suspension area. At a minimum I'd call it asinine, but I'd better describe it as "mentally disabled" (to be PC). There's literally no clearance to remove the lower bolts. Removal and reassembly of the caliper had to go in an exact order. I did a step out of order and ended up having to redo the process. I never had this issue on my other cars.
Ok, now that I've vented a bit and got that off my chest, I can be a bit more clear about what had happened.
Battle number 1:
Those 19mm bolts that hold the caliper mounting brackets in place... well, I'll say that getting them loose took a toll on my body. The upper bolts, while tough, at least offered enough room for my 1/2" ratchet. The lower bolts on the other hand, were a different story. Since there is the smallest possible amount of clearance between the bolt an suspension link, I couldn't get my socket and ratchet in there. I was prepared for that and came in armed with a 19mm wrench, but even getting that set up on the hex head took multiple tries. There was barely enough clearance for the wrench to get in there between the hex head and suspension link; to get it on there, you had to have the wrench perfectly angled and aligned. That also limited where I could position the swing angle of the wrench. I tried contorting myself into different positions in and around the wheel well to get extra force on the wrench, but that bolt just would not turn. I'm not a big guy and probably weigh 160lbs. soaking wet, so I couldn't really muscle the bolts loose. I had also sprayed on some pentrating oil, but those things still wouldn't budge. The driver side did eventually give way after a struggle, but the passenger side had some more fight left in it. In order to get the passenger side bolt loose, I had coupled the open end of one wrench into the open end of the 19mm one for extra leverage. Sure, it worked, but I thought I could seriously hurt myself there; the other wrench was really flexing a lot and I thought it could have given way or slipped off at some point. But anyway, I was victorious!
Battle number 2:
Since the inner pads looked to be almost twice as worn as the outer ones, I wanted to re-lube the slider pins/bolts. But not all of them wanted to agree with me. Three of them broke loose with little drama, but the lower bolt on the driver side did not want to be taken alive. That area had some clearance issues as well for a socket and ratchet, but I bought a 14mm 6 point wrench exclusively for this job. Again, I sprayed on some penetrating oil. It did not work. The hex head had started to round off. Plan B was to apply heat with a propane torch, more penetrating oil, and a couple of taps with a hammer. But it was probably too little, too late, and it also didn't work. Ok, since the bolt head has no more edges for the wrench to catch onto, I move to plan C. Pipe wrench, more torch heat, more penetrating oil, and more hammering. Nope.
#$@*!!! #$@*!!! #$@*!!! . The bolt did not loosen. Instead the pipe wrench had just mangled up the head. I had considered drilling out the bolt, but I pretty much gave up here. I didn't want to spend another hour or more messing with it. I'll have a mechanic remove it for me one of these days. I'm going to concede here and call this one a loss
. I'm also going to name this bolt 'Rambo' because it was a tough SOB.
In the end I was still able to get the rotors and pads changed out. I had also cleaned some rust off the hub and adjusted my parking brake. While there were a few areas I could not conquer, I'll still say that I had won the war. Looking back I probably should have put some anti-seize on all those bolts to ease removal in the future, as I believe I had done that on my old car; however, that car was always parked outside and showed more rust vs. my EX. Living in the Northeast isn't kind on the metal parts of our vehicles, and this job has made me question my desire to keep on wrenching. I've got some sore muscles, and the battle scars on my arms have actually got me some sympathy from my kids
. Heck, even my wife felt a little sorry for me; usually she thinks I take too long in the garage
. Anyway, I'll just take a break for now and probably just foolishly jump into the next maintenance job that comes ups and tempts me while forgetting about this last experience. Kudos to you guys who gets these jobs done without an issue
!