goldbrick
Posts: 1107
Joined: Tue Aug 01, 2017 3:33 pm
Delivery Date: 01 Aug 2017
Leaf Number: 311806
Location: Boulder, CO

Re: Brake maintenance - How to avoid seized brakes

Sat Apr 04, 2020 10:14 am

I've found on my ICE cars that taking a quick look around when doing an oil change or swapping summer/winter tires can catch a lot of small problems before they become big problems. Still, it's dry here in CO so corrosion isn't an issue so I'm guessing the brakes on my 2017 Leaf won't need any attention for a few more years at least. I'll probably change the brake fluid this year or next but otherwise, it's still a virtually zero-maintenance car for me.

estomax
Posts: 279
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Leaf Number: 424033
Location: Seattle

Re: Brake maintenance - How to avoid seized brakes

Sat Apr 04, 2020 11:07 am

Oilpan4 wrote:
Fri Apr 03, 2020 10:09 pm
I put anti brake drag springs on mine a few weeks ago and the sliders were fine.
which springs did you install? i want to inspect my brakes next time i rotate my tires so i may as well do this.
2013 Leaf SL Premium
27k, 93% SoH 2/17 32k, 96% SoH 6/17
46k, 94% SoH 2/18 52k, 88% SoH 6/18
62k, 87% SoH 2/19 68k, 84% SoH 6/19
75k, 83% SoH 2/20

User avatar
Nubo
Posts: 5847
Joined: Fri May 28, 2010 11:01 am
Delivery Date: 31 Oct 2014
Location: Vallejo, CA

Re: Brake maintenance - How to avoid seized brakes

Sat Apr 04, 2020 11:26 am

powersurge wrote:
Sat Apr 04, 2020 2:59 am
This is not necessary... The poster's car looks very rusty so maybe he needed to do that.

Those bolts will always be dirty, no matter how new they are. The only time you need to do this is if you are having "seizing" problems already. And even then, you will not notice any "seizing" until the brake pads wear out, and and you will see that the pads have worn unevenly. That is the only symptom of the slide pins.

This is not needed and not dangerous to any car owners. Brakes do not need maintenance, and will last the life of the brake pads.
The idea is that pads on an EV have a significantly longer life. Still short enough to preclude interim maintenance? Maybe but I do know that mine have developed a squeal when backing up that leads me to believe the grease between pads and shims (or perhaps other sliding surfaces) has dried up.
Not that it's dangerous at this point but probably worth my time to get in there and check things out. And if I'm going to remove calipers I might as well do the lot. I guess I could just go ahead and change pads as well but there's still tons of material left and I haven't had anything to complain about the stock pads other than the recent backup squeal.
I did have brakes get stuck once to the point where the fluid boiled. Not a fun day. Those were crappy old drum brakes but it still haunts me.
I noticed you're still working with polymers.

estomax
Posts: 279
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Leaf Number: 424033
Location: Seattle

Re: Brake maintenance - How to avoid seized brakes

Sat Apr 04, 2020 9:08 pm

Nubo mine has started squealing on reverse too. I'm at 75k miles and I'm fairly sure noone has touched the brakes. Going to take then apart and clean/grease things.
2013 Leaf SL Premium
27k, 93% SoH 2/17 32k, 96% SoH 6/17
46k, 94% SoH 2/18 52k, 88% SoH 6/18
62k, 87% SoH 2/19 68k, 84% SoH 6/19
75k, 83% SoH 2/20

powersurge
Posts: 1743
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: Brake maintenance - How to avoid seized brakes

Sun Apr 05, 2020 4:15 am

estomax wrote:
Sat Apr 04, 2020 9:08 pm
Nubo mine has started squealing on reverse too. I'm at 75k miles and I'm fairly sure noone has touched the brakes. Going to take then apart and clean/grease things.
Ok, since the Leaf can apparently go up to 100K miles before brake pad replacement, I can see that checking the brake slides may be an item.

However, I do not think that a brief squeak in reverse when pulling out of the driveway justifies taking the calipers off....

Also, yes you may want to pull the caliper slide pins off to re-grease them at 50-75K miles, but that is your choice as a home mechanic.

As a Leaf owners forum here, I do not want to concern Leaf owners that this is a problem they need to worry about as a safety issue with the brakes by NOT doing this.

I do not recommend that general (non-mechanical) Leaf owners run to their mechanics and demand to t heir mechanics that they need to re-grease the calipers. Calipers are not delicate, and can go over 100,000 miles or more with no attention.

What I am saying to everyone (including non-mechanics) that doing the re-greasing will be a benefit, but it is not necessary. I see this similar to waxing your car.... If you want to wax your car every weekend, it is good... But not necessary.

gncndad
Posts: 299
Joined: Mon Feb 22, 2016 9:02 pm
Delivery Date: 23 Feb 2016
Location: Ft. Worth, TX

Re: Brake maintenance - How to avoid seized brakes

Sun Apr 05, 2020 6:42 am

This is a great forum. Lots of useful discussion, and reasonable people willing to listen to each other.

Stay healthy!
2015 LeafS
2018 Toyota Prius Two (son's car)
2014 Toyota Avalon Hybrid Limited

Oilpan4
Posts: 1809
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Brake maintenance - How to avoid seized brakes

Sun Apr 05, 2020 8:13 am

I used Raybestos h6016 springs.
I calculated how much power it will save, looks like about 200 to 300 watts at 65mph.
Which works good for me because about 80% of my driving is on the highway.
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

estomax
Posts: 279
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Leaf Number: 424033
Location: Seattle

Re: Brake maintenance - How to avoid seized brakes

Sun Apr 05, 2020 9:05 pm

oilpan, you used these sames ones for front and rear? seems neat, i will order a set and install them when i take the pads off to solve the reverse squeal. thanks!

$8.24 shipped from rockauto. love cheap tinker projects like this :)

Marko
2013 Leaf SL Premium
27k, 93% SoH 2/17 32k, 96% SoH 6/17
46k, 94% SoH 2/18 52k, 88% SoH 6/18
62k, 87% SoH 2/19 68k, 84% SoH 6/19
75k, 83% SoH 2/20

Oilpan4
Posts: 1809
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Brake maintenance - How to avoid seized brakes

Tue Apr 07, 2020 2:16 pm

I think I used the same oneson the front, had to bend and modify them a little to make them fit.
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

jim0266
Posts: 75
Joined: Fri Mar 17, 2017 10:14 am
Delivery Date: 17 Mar 2017
Leaf Number: 330446
Location: Akron, Oh

Re: Brake maintenance - How to avoid seized brakes

Mon Apr 13, 2020 9:19 am

I managed to perform a brake service on the passenger front and rear so far on my 2014 Leaf. I was having bad squealing from a sticking parking brake when I reversed the car. I found this excellent video on rear brake service including the parking brake: https://youtu.be/3REPy7rm4a8
Last edited by jim0266 on Thu Apr 16, 2020 7:24 pm, edited 1 time in total.

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