Brake Question

[tbiddy]

I admit I’m no mechanic. The wife had her Mazda CX-9 in the shop on Friday and had the rear brakes and rotors replaced. Drove around all weekend for maybe 200km. Headed up to GP on Monday and almost made it to Mayerthorpe (about 400km from home) when we heard a loud bang come from the back end. Pulled over and could hear grinding on the back drivers side.

Drove it to the tire shop in Mayerthorpe (shout out to Integra Tires). The mechanic pulled the rotors. Said these pieces were in there (attached pics), the rotor has a chunk out of it (probably the loud bang we heard) and there was no parking brake shoe. The mechanic said the pieces are from the parking brake.

The question I have is, would the tire shop have taken off the parking brake shoe and not replaced it? If he didn’t take it off, would he have informed us there was no parking brake shoe when he replaced the rotors?

All I know is I had a shoe on Friday (we bought the car used but it had to get a SK inspection and a requirement is the parking brake works) and Monday afternoon I didn’t.

Since I’m no brake expert I just don’t want to sound stupid when I call the shop and accuse them of messing up.




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[HVA7mm]

The part with the chunk out of it is the drum for the drum/shoe park brake assembly. The pieces in the bottom are a part of the slack adjuster and other shrapnel. They may not have properly attached the pin/shoe hold down springs with the hold down spring cups and the shoe assembly could have came away from the backing plate. By the looks of the scoring, pieces had been tumbling inside and the shoes rubbing on the inside of the hub. Or something else came loose and was caught rubbing between the shoes and the hub.

I'm not a mechanic either but have replaced quite a few different brake assemblies on a variety of vehicles. Somebody else with more experience like Randy Bo Bandy will likely have a better idea.

[HunterDave]

I’m not a mechanic but I do my own brakes. The park brake shoes go inside the drum and imo when they took off the rotor and put it back on it caused some sort of damage that caused a catastrophic failure. I definitely wouldn’t consider it a coincidence.

[Fowl91]

Mechanic here... I would say if the rear brakes and rotors were just done, then someone forgot the park brake shoe. The gouge on the interior looks to be from parts that would hold the shoe against the inside of the rotor. I am not familiar with Mazda setups, but this looks to be the case. I would take it back to the shop where the brakes were done and ask them to repair it correctly. Also now I would assume that the lever that connects the cable to park brake shoe may have some damage. Good luck.

[Grizzly Adams]

Did you check the other side ? Looks like there's more missing here than the shoes, the adjustor is normally held in by the shoes, bit of a puzzler.

Grizz

[jrowan]

Originally Posted by Grizzly Adams

Did you check the other side ? Looks like there's more missing here than the shoes, the adjustor is normally held in by the shoes, bit of a puzzler.

Grizz

Hard to tell from the photo, but I'm pretty sure it is a rotor, not a drum setup.

[sweld]

I would phone the place back that did the brake job, have them phone where the car is at now and have them explain exactly what happened. I would then tell them either you pay this place to fix it or get it towed back to there place and fix it themselves. It’s obvious that they screwed something up.


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[tbiddy]

Originally Posted by sweld

I would phone the place back that did the brake job, have them phone where the car is at now and have them explain exactly what happened. I would then tell them either you pay this place to fix it or get it towed back to there place and fix it themselves. It’s obvious that they screwed something up.


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The shop in Mayerthorpe did the work for free on no notice. They cleaned out the shrapnel, put it back together and got us on the road in under an hour. The shop that did the original work has ordered the parts. We just need to agree on who is paying for the repairs.

[liar]

Originally Posted by tbiddy

The shop in Mayerthorpe did the work for free on no notice. They cleaned out the shrapnel, put it back together and got us on the road in under an hour. The shop that did the original work has ordered the parts. We just need to agree on who is paying for the repairs.

Send them a Christmass card .

[Dean2]

Originally Posted by liar

Send them a Christmass card .

And a crock of rye!!!! You sure don't see that very often anymore and it wasn't very common years ago either.

[daveyn]

Originally Posted by tbiddy

The shop in Mayerthorpe did the work for free on no notice. They cleaned out the shrapnel, put it back together and got us on the road in under an hour. The shop that did the original work has ordered the parts. We just need to agree on who is paying for the repairs.

Sounds like the Mayerthorpe guy went to the Tirebob school of customer service...

[RandyBoBandy]

Originally Posted by daveyn

Sounds like the Mayerthorpe guy went to the Tirebob school of customer service...

Perhaps, the guy is a member on here??

[tbiddy]

Originally Posted by sweld

I would phone the place back that did the brake job, have them phone where the car is at now and have them explain exactly what happened. I would then tell them either you pay this place to fix it or get it towed back to there place and fix it themselves. It’s obvious that they screwed something up.


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The shop that fixed us up was Integra Tire and Auto Centre in Mayerthorpe. Very, very appreciative of the help!!