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Need help with rear wheel hub; bolt snapped #4441957
06/26/17 01:04 PM
06/26/17 01:04 PM
Joined: Jun 2017
Posts: 9
illinois
nolan7120 Offline OP
nolan7120  Offline OP

Joined: Jun 2017
Posts: 9
illinois
I was in the process of trying to change my parking brake shoes on my 2009 Hyundai Elantra when I accidentally snapped off a bolt head of one of the 4 bolts required to remove the hub (rear passenger side, bottom left bolt if you are looking at the hub). The other three came out just fine. This style of parking brake is one of those mini drum types on the inside of the rear rotor.

If the axle flange doesn't have threads (and only the hub flange does), I think I may be able to still remove the wheel hub. I tried yesterday by banging the [censored] out of it but had no luck. I'd rather not beat it into a pulp because I want to reuse the hub after working on the parking brake.

My next course of action is to go rent a slide hammer and to just try the other side. That way I can know for sure if there are no threads on the axle flange (and therefore wasting my time on the other side by trying to beat it out with a stuck bolt body still present). I'm also going to get some PB Blaster and see if that helps because I was using WD-40. I think I may have some Kroil around but that will be more of a pain in the butt to apply.

Has anyone snapped off one of the bolt heads while trying to remove a wheel hub? If I try to drill it out from behind the axle flange, there are various suspension components in the way that I'd have to remove even to get a decent angle on the broken bolt. I've never tried that before and wouldn't want a broken bolt on a funky angle to be my first attempt. Any suggestions on what to do next?

Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4441968
06/26/17 01:27 PM
06/26/17 01:27 PM
Joined: Nov 2009
Posts: 2,022
Ontario Canada
cjcride Offline
cjcride  Offline

Joined: Nov 2009
Posts: 2,022
Ontario Canada
Try Hyundai-Forums.com

Welcome

Last edited by cjcride; 06/26/17 01:27 PM.
Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4441986
06/26/17 01:56 PM
06/26/17 01:56 PM
Joined: Mar 2004
Posts: 21,826
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,826
Upstate NY
You weld on a nut or bolt to what is there.

Impact wrenches often get off bolts/nuts where a breaker bar snaps it.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Need help with rear wheel hub; bolt snapped [Re: Donald] #4442070
06/26/17 03:32 PM
06/26/17 03:32 PM
Joined: Aug 2014
Posts: 1,454
Gulf Coast, MS
3800Series Offline
3800Series  Offline

Joined: Aug 2014
Posts: 1,454
Gulf Coast, MS
Originally Posted By: Donald
You weld on a nut or bolt to what is there.

Impact wrenches often get off bolts/nuts where a breaker bar snaps it.


This been there a few times.

Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4442078
06/26/17 03:44 PM
06/26/17 03:44 PM
Joined: Nov 2006
Posts: 21,240
MA, Mittelfranken.de
Trav Offline
Trav  Offline

Joined: Nov 2006
Posts: 21,240
MA, Mittelfranken.de
Both parts cant be threaded. If the bolts go in from behind only the hub is threaded, if the bolts go in from the front through the hub then the stub axle flange is threaded.


ASE L1, Master. Deutsch Meisterbrief.
Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4442198
06/26/17 06:29 PM
06/26/17 06:29 PM
Joined: Dec 2014
Posts: 1,686
'murica
Ethan1 Offline
Ethan1  Offline

Joined: Dec 2014
Posts: 1,686
'murica
Your description is astute, but we would still be well-served by a picture.

Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4442210
06/26/17 06:41 PM
06/26/17 06:41 PM
Joined: Aug 2003
Posts: 11,227
Buffalo, NY
JTK Offline
JTK  Offline

Joined: Aug 2003
Posts: 11,227
Buffalo, NY
Why the hub removal just for P-brake service?


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4442290
06/26/17 08:26 PM
06/26/17 08:26 PM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline

Joined: Oct 2012
Posts: 4,825
Taiwan
Heat and wax in combination are supposed to be effective looseners.

Re: Need help with rear wheel hub; bolt snapped [Re: cjcride] #4442396
06/26/17 10:09 PM
06/26/17 10:09 PM
Joined: Jun 2017
Posts: 9
illinois
nolan7120 Offline OP
nolan7120  Offline OP

Joined: Jun 2017
Posts: 9
illinois
Originally Posted By: cjcride
Try Hyundai-Forums.com

Welcome

Tried Hyundai Forums but no response. I didn't start a new thread though; only updated an old one so maybe that's why.

Re: Need help with rear wheel hub; bolt snapped [Re: Trav] #4442397
06/26/17 10:11 PM
06/26/17 10:11 PM
Joined: Jun 2017
Posts: 9
illinois
nolan7120 Offline OP
nolan7120  Offline OP

Joined: Jun 2017
Posts: 9
illinois
Originally Posted By: Trav
Both parts cant be threaded. If the bolts go in from behind only the hub is threaded, if the bolts go in from the front through the hub then the stub axle flange is threaded.


You're right, only the wheel hub is threaded. After getting the thing off today, I was able to peer in the hole and it looked like there were threads in there due to all the rust buildup but low and behold there wasn't.

Re: Need help with rear wheel hub; bolt snapped [Re: JTK] #4442398
06/26/17 10:13 PM
06/26/17 10:13 PM
Joined: Jun 2017
Posts: 9
illinois
nolan7120 Offline OP
nolan7120  Offline OP

Joined: Jun 2017
Posts: 9
illinois
Originally Posted By: JTK
Why the hub removal just for P-brake service?


Because it's an absolute pain in the [censored] to do with the hub in the way. I was able to disassemble all the hardware today, but reassembly if I hadn't gotten the hub off would take me a really long time. Figured it's just easier to pop off the hub, service the parking brake, and pop it back on. The broken bolt decided otherwise!

Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4442400
06/26/17 10:13 PM
06/26/17 10:13 PM
Joined: Jun 2017
Posts: 9
illinois
nolan7120 Offline OP
nolan7120  Offline OP

Joined: Jun 2017
Posts: 9
illinois
Success! To an extent at least. I ended up disassembling the parking brake hardware despite the wheel hub in the way.



I knew I wouldn't be able to reassemble it unless I was able to remove the hub. I borrowed a bolt extractor socket set from my ex's dad, and through one of the holes on the wheel hub, I was able to get it banged down nice and tight on the end of the bolt.



After heating the surrounding area, I was able to move the bolt forward like a 1/2", and suddenly it came to a dead stop. I removed the extractor socket, popped on the slide hammer I rented from Autozone, and was able to pull the hub off on the 2nd try. At this point, the bolt was still stuck in the hub.



I took the hub over to my ex's dad's house because he has more tools and a better work space. After a solid 30-40 minutes of heating up the hub while in a vise and cranking the [censored] out of the bolt with various tools (vise grips, pipe wrench, channel locks, and finally an extractor socket coupled with a huge ratchet), the [censored] thing came out.

My only issue now is 2 of the 4 holes on the wheel hub feel like they have buggered up threads. I tested all 3 remaining bolts in both holes and they won't go in more than one turn before I encountered resistance. So tomorrow to start the day off I get to fix the threads on the hub, which I've never done before. My ex's dad can't help me there as he only has a SAE tap and die set. I either need to 1) Find and pay someone to do it, 2) try it myself, or 3) buy a new hub.

Last edited by nolan7120; 06/26/17 10:17 PM.
Re: Need help with rear wheel hub; bolt snapped [Re: nolan7120] #4442438
06/27/17 12:29 AM
06/27/17 12:29 AM
Joined: Nov 2006
Posts: 21,240
MA, Mittelfranken.de
Trav Offline
Trav  Offline

Joined: Nov 2006
Posts: 21,240
MA, Mittelfranken.de
IF I were doing this job I would replace the hub, all that heating with a torch may have buggered the bearing grease and a new hub may be in the cards sooner than later anyway.
Well done getting it apart. nice save. thumbsup


ASE L1, Master. Deutsch Meisterbrief.
Re: Need help with rear wheel hub; bolt snapped [Re: Trav] #4442491
06/27/17 05:21 AM
06/27/17 05:21 AM
Joined: Apr 2015
Posts: 111
Pennsylvania
bugeye Offline
bugeye  Offline

Joined: Apr 2015
Posts: 111
Pennsylvania
Suggest following Trav's advice. New hub. Use never seize on the bolts. Hubs are cheap relative to the hassle of changing as you found. Don't want a future bearing failure.

Re: Need help with rear wheel hub; bolt snapped [Re: Trav] #4442553
06/27/17 07:28 AM
06/27/17 07:28 AM
Joined: Mar 2010
Posts: 5,411
Iowa
The_Eric Offline
The_Eric  Offline

Joined: Mar 2010
Posts: 5,411
Iowa
Originally Posted By: Trav
IF I were doing this job I would replace the hub, all that heating with a torch may have buggered the bearing grease and a new hub may be in the cards sooner than later anyway.
Well done getting it apart. nice save. thumbsup


Agreed. Either the grease got messed up, or the seal was damaged, which will let water and foreign debris in which will ruin the bearing too.

Don't buy the $49.99 bearing from Autozone or Advance Auto either. Buy OE, SKF, BCA, Timken or other premium grade part.


2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M
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