"Aremmes" (aremmes)
08/18/2020 at 19:45 • Filed to: brake job, volvo xc90
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"Aremmes" (aremmes)
08/18/2020 at 19:45 • Filed to: brake job, volvo xc90 | 1
| 5 |
My last wrenching endeavour saw me replacing the front brake rotors and pads on the XC90, which after a mild rant about red Loctite and some waiting for the correct parts to arrive went smoothly. I figured this week would be a good time to tackle the rear brakes, so after perusing the YouTubes for details and punting a couple of change requests into next week I started the job in earnest.
In theory, the rear calipers are very similar to the fronts, just smol. The sliders come off using a 7mm nex bit, just like the fronts. Two 13mm bolts hold the brackets in place vs. 17mm, but same deal. However, the sliders sit super close to the coil springs, so there’s not enough space to put a socket wrench in there. Instead it’s easier to remove the bracket from the spindle and then remove the sliders. No biggie, then.
So then the rotor comes out. Remove the set screw, whack it with a hammer a bit, and it pops off from the hub. But of course it won’t come off entirely because the parking brake shoes are stuck on the lip on the inside of the rotor. I found that some wiggling back and forth allowed the rotor to slowly slide off, so I kept on it until the rotor came off entirely. And then this little dinger fell on the floor.
Cock. The retainer spring for the top shoe broke off Perhaps in my effort to pull the rotor I managed to break it, which sucks sucks, but shrug.gif. More likely, though, it was broken before I removed the rotor, which would go some way to explain the occasionally erratic behavior of the parking brakes, and also probably explain why the top shoe has a flat spot.
It’s an annoying setback, as I now have to order more parts and refresh the parking brakes as well, but as it’s obvious that they have not been touched in a long time, I might as well go for it and feel better knowing that they’re good.
Snuze: Needs another Swede
> Aremmes
08/18/2020 at 20:21 |
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Nothing like fixing one problem only to find another one!
Ive been crazy busy and haven't done much with the wagon besides get some plates for it. I'll be gone 4 out of the next 6 weeks and that should be all my travel for the year, so this fall I should be able to dive in head first on my Volvo project.
BrianGriffin thinks “reliable” is just a state of mind
> Aremmes
08/18/2020 at 20:22 |
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Whatever engineer decided that it was a good idea to stick the parking brakes inside a hat on the disc, and then make them out of parts that rust like crazy if someone three blocks away so much as spits in the street, deserves to be punched in the face.
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Aremmes
> Snuze: Needs another Swede
08/18/2020 at 21:43 |
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Inorite? I’m starting to think that old cars might sometimes probably present potential pitfalls that may consume additional time and effort. Maybe.
It’s cool that you got the 245 plated now. I’m sure you’ll have a pleasant time working on it in your new car
surgery room
. Did the front plate bracket fit?
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Aremmes
> BrianGriffin thinks “reliable” is just a state of mind
08/18/2020 at 21:56 |
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I’ve got to say that Mazda has me spoiled on brake jobs. Remove one slider, swing the caliper out, replace pads, retract the piston using the screw on the back, adjust
the parking brake lever on the back, a
nd put the caliper back in place.
Given that, I find it hard to explain why one would choose to put the parking brake in the hat with its attendant complexity and extra weight.
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Snuze: Needs another Swede
> Aremmes
08/19/2020 at 09:34 |
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It is possible...
And I haven’t put the front plate on, mainly because I don’ t want to run one. But once I start driving it more I will probably need to, so I’ll try at some point. F or now though, a s it just sits around my neighborhood, I think the rear only is fine.