[EMS Discuss] Replacing rotors - A nice day at the shop
cord42 at gmail.com
Thu Jan 16 19:58:27 PST 2014
Great read Ben and very glad you played with fire successfully without
setting yourself or the shop on fire! :D
On Thu, Jan 16, 2014 at 2:04 PM, Bob Miller <kbob at jogger-egg.com> wrote:
> Well done, sir. (Both the brake job and the low-key publicity.)
> On Thu, Jan 16, 2014 at 5:40 AM, Ben Hallert <ben at hallert.net> wrote:
>> I posted this to my Facebook thing this morning, wanted to share it here
>> too; are there opportunities to chat up the shop to our friends we can be
>> taking to help grow the community? Just a thought....
>> I had a productive day at the shop after work yesterday! For the last
>> few weeks, my car has grumbled at me about half of the time I used the
>> brakes. I say grumble because it didn't quite match any other description;
>> it wasn't scraping, it wasn't screeching or shaking, it was just...
>> grumbling. "Grrrr..." I figured there must probably be a pebble stuck
>> between a pad and the rotor or something and it was slowing properly, so
>> when I got around to it I took it to the Eugene Maker Space (
>> http://eugenemakerspace.com) to fix up.
>> Pulling off the front right wheel, I went to loosen some bolts that hold
>> the caliper on when I discovered the source of the problem: Somehow, one
>> of the two bolts was _missing_. Completely gone! I could rotate the
>> caliper in place with little effort because it was only half attached,
>> yikes. This is unacceptable! Whoever did my brakes last was clearly a
>> complete and utter careless moro- I paused. On contemplation, I realized
>> that I was the last one to touch these because I had replaced the pads a
>> few months ago. In a sudden spirit of "can't we all just... get along?"
>> reconciliation, I magnanimously decided that failing to properly tighten
>> that bolt was an understandable mistake and certainly not worth obsessing
>> over. Let's let bygones be bygones and all that. A quick walk down to
>> Autozone got me a replacement bolt and we were off and running.
>> A backstory on these brakes; as I mentioned, I had replaced the pads but
>> I had known for the last year or so that I really needed new rotors. The
>> rotors are the big metal discs that the brakepads squeeze against to slow
>> you down and they can get worn. When they get worn and get grooves in
>> them, that wears the pads out quicker and it's a dirty cycle. I had
>> actually needed to replace my pads twice, both when I was broke, so I had
>> incurred extra expense overall as a result. As someone once told me,
>> 'there's few things more expensive than being poor'. But this time, I had
>> planned ahead and had gotten new rotors and by damned, I was going to
>> replace them.
>> To get the rotors off, you remove the calipers (the things that squeeze
>> the pads against the rotors), a thing that holds the pads themselves, and
>> then just pull the big metal plates off the hub.
>> This sequence really looks better in writing than the reality because of
>> that last step. "Just pull the rotors off" implies that the rotors have
>> not rust-welded themselves to your car as mine had done. I knew the theory
>> but had somehow never actually pulled rotors before so I spent the next 45
>> minutes alternately hitting it with a mallet, watching instructional
>> YouTube videos, then hitting it harder with the mallet. After watching a
>> less useless video, I did something new: I grabbed a shop torch and started
>> heating parts of the rotor near the center (where it was bound up). If it
>> hadn't been for the helpful encouragement of some guy back east, I would
>> have been worried about setting my car on fire but apparently this is 'the
>> thing to do' so after heating and hitting and burninating, I eventually got
>> it off. I've got to say that having a shop with shop resources was pretty
>> nice. Need a torch? Sure, here we are. Clean floor to crawl around on
>> under car? Beats a cold and wet driveway! Penetrating oil for removal and
>> clamps for resetting the calipers? We gotcha covered. One of the best
>> parts of the whole thing was that I was really kinda stranded until I
>> finished the job. If I was at home and the rotor wasn't coming off, I
>> would be totally tempted to go inside and play on the computer until it was
>> too late (Better put the wheel back on, I'll try another day!) but being
>> stranded in West Eugene was a good motivator to just get it done.
>> After a couple hours total, I had both rotors replaced (with fresh new
>> pads, why not) and hadn't set my car on fire even once.
>> Community shops like this are awfully nice to be a part of and I look
>> forward to our upcoming move. We've currently got woodworking tools, metal
>> lathe, a welding table, 3D printers, a soldering station, community
>> workspace for big projects, and more. We're in the process of finding a
>> bigger place to allow for growth and increase our capabilities and it's
>> going to be an exciting evolution. I'll post more details as it develops
>> and invite anyone who's interested in learning more about the space to
>> contact me.
>> Now... how well did I tighten that new bolt? I guess I'll know what to
>> do if my car starts grumbling again.
>> - Ben
>> Discuss mailing list
>> Discuss at eugenemakerspace.com
> Bob Miller K<bob>
> kbob at jogger-egg.com
> Discuss mailing list
> Discuss at eugenemakerspace.com
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