If you've seen this before, you've seen a lot......

jsunma · 03-22-2020, 03:24 PM

Quote:

Originally Posted by Efthreeoh

The car needs a new wheel, caliper, caliper carrier, bolts and guide pins, pads, brake hose, brake flush, maybe a new rotor, or a light resurfacing, and proper reassembly of the components. You are going junk it? Really?

By the pic, you are mostly already halfway through the rebuild. ASSuming the hub is not damaged.

This is what I came here to say. New wheel, new caliper, new brake line(s), bleed and call it a day. The rest of the car looks fine.

gbalthrop · 03-22-2020, 08:03 PM

Quote:

Originally Posted by Efthreeoh

Yes, the carrier has to be removed [to replace the Rotor]. I've never replaced the bolts. Just use Loc-Tight Blue

Cheaper than new bolts, & probably as (or more) effective. Also cheaper than a tow, wheel, brake hose, & caliper replacement. Walmart: $6. The packaging even shows you how to apply it -- NO "video" required

https://www.walmart.com/ip/Loctite-0...iABEgIAt_D_BwE

George

C4maro · 03-23-2020, 01:00 AM

Quote:

Originally Posted by Antetokounmpo

Caliper bolts sheared, probably were not torqued then backed out

That's a thing?? I've never even torqued them, just tighten as much as I can

falconey · 05-23-2020, 10:20 AM

For those asking the big sticking point on 'junkies it' is the wheel. I can't replace it so all new wheels too or shitty wheels. Either way cost goes up. Thinking of repairing for my son, but too much power I think.

Anyways the update is i finally got around to getting the rotor off this morning. What a pain in the ass.

M-technik-3 · 05-23-2020, 10:36 AM

Have seen this years ago in the e30 world but that was normally owner failing to secure them properly.

SabineBimmer · 05-23-2020, 06:27 PM

Quote:

Originally Posted by Efthreeoh

Quote:

Originally Posted by falconey

I'm a grown man and not here for a lecture, lol. I was just sharing my story. BTW I was the genius that changed the pads. I've done over 50 brake jobs in my life and I've done it 4 times on my 335i. I changed the pads and rotors in December and I take it very seriously. I obviously made a mistake or my torque wrench is fawked. I'm sure you walk through your life of perfection looking down at others, but I get quite a bit right in my life including auto maintenance. Maybe not this time and if so, God is watching over me because He saved my bacon.

The tow guy and me realized the wheel was stuck due to caliper and brake line. There was no squealing until after the clunk. The clunk was the caliper going through the wheel. I was on the side of a busy road with part of my car stuck out on the road and the back half on a decline, plus my car is lowered. The amount of crap I'd have to go through to get the car out without damage was just not worth it.

Anyways the really shatty part of this, is the car has been riding sooooo good. I've been wanting update my weekend car to an IS so this will probably push me to do that.

I have to come to George's defense. Losing a brake caliper in this manner can only look like an error in the reassembly of the brake. The torque on the cage bolts is around 50 pounds or less (rear brake) going from memory. Even without a torque wrench, an experienced hand would know what the nearly correct tightness was. Either the bolts were not tightened at all (left finger tight), or the bolts were far over torqued, stretched beyond their yeild strength and eventually failed.

Getting rid of the car based on poor craftsmanship with a brake job seems a bit silly and really just an excuse.

Agreed. Yeah it can be seen as condescending, but George has a point. There's more to the story. It is easy to talk about this as a simple mechanical failure, but if someone, including you, was hurt/killed, it wouldn't be so easy. And on top of that, someone would/will be liable.

SabineBimmer · 05-23-2020, 06:28 PM

Quote:

Originally Posted by C4maro

Quote:

Originally Posted by Antetokounmpo

Caliper bolts sheared, probably were not torqued then backed out

That's a thing?? I've never even torqued them, just tighten as much as I can

Yes. The repair manual should give you the torque numbers.

SabineBimmer · 05-23-2020, 07:10 PM

Quote:

Originally Posted by jsunma

Quote:

Originally Posted by Efthreeoh

The car needs a new wheel, caliper, caliper carrier, bolts and guide pins, pads, brake hose, brake flush, maybe a new rotor, or a light resurfacing, and proper reassembly of the components. You are going junk it? Really?

By the pic, you are mostly already halfway through the rebuild. ASSuming the hub is not damaged.

This is what I came here to say. New wheel, new caliper, new brake line(s), bleed and call it a day. The rest of the car looks fine.

Please also bleed the brakes appropriately.

falconey · 07-25-2020, 01:04 PM

Finally got the car up and running today after months of procrastination and another month of addressing one off issues.

Ultimately I had to cut off the dust shield, install new brake line, rebuild parts of the caliper, replace parking brake shoes, replaced pin bolts and carrier bolts and bled the brakes. Car is braking and driving fine, but there is some rotational metallic noise. Possibly needs more brake lube or maybe rotors need to be turned. They cleaned off good on the test run so I'm really not sure. Hope to find a shop that can turn drilled/slotted rotors.

Thorin · 07-26-2020, 11:37 AM

Back to the original failure, did you reuse the caliper mount bolts or buy new?

05-23-2020, 10:20 AM	#26
falconey Captain 483 Rep 681 Posts Drives: 18 f80cs, 21 f97 Join Date: Mar 2013 Location: atlanta iTrader: (0)	For those asking the big sticking point on 'junkies it' is the wheel. I can't replace it so all new wheels too or shitty wheels. Either way cost goes up. Thinking of repairing for my son, but too much power I think. Anyways the update is i finally got around to getting the rotor off this morning. What a pain in the ass. Attached Images
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05-23-2020, 10:36 AM	#27
M-technik-3 Major 2081 Rep 1,473 Posts Drives: E30 M3, E36 M3, 328iT, 335i Join Date: Mar 2020 Location: western Ma iTrader: (0) Garage List 1995 M3 [9.00] 2007 E91 [7.25] 1988 M3 [9.50]	Have seen this years ago in the e30 world but that was normally owner failing to secure them properly.
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07-25-2020, 01:04 PM	#31
falconey Captain 483 Rep 681 Posts Drives: 18 f80cs, 21 f97 Join Date: Mar 2013 Location: atlanta iTrader: (0)	Finally got the car up and running today after months of procrastination and another month of addressing one off issues. Ultimately I had to cut off the dust shield, install new brake line, rebuild parts of the caliper, replace parking brake shoes, replaced pin bolts and carrier bolts and bled the brakes. Car is braking and driving fine, but there is some rotational metallic noise. Possibly needs more brake lube or maybe rotors need to be turned. They cleaned off good on the test run so I'm really not sure. Hope to find a shop that can turn drilled/slotted rotors.
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07-26-2020, 11:37 AM	#32
Thorin Second Lieutenant 118 Rep 272 Posts Drives: e91 6MT ZSP Join Date: Mar 2017 Location: NorCal iTrader: (0)	Back to the original failure, did you reuse the caliper mount bolts or buy new?
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