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Front wheel bearing race stuck in Hub


tsitalon1
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Galant VR-4 org Post #: 1200138 posted 01/29/15 09:37 PM     Remind Me!  Send Private Message   Edit Post      
Need a bit of help guys.

I've done DSM wheel bearings before, but never had this problem...

Front bearing race is stuck in hub and my 12ton Harbor freight press is flexing and making me uncomfortable (even after tried torching it with a map gas torch)trying to push it out. I'm having difficulty getting the hub to sit flat on the press.

Tomorrow I plan to heat the hub up in the oven at 400 and then use dry ice on the race to see if I can loosen it that way.

In case your wondering my local machine shop refused the work stating "these are a pain in the ass".

Any other ideas?

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Galant VR-4 org Post #: 1200139 posted 01/29/15 09:49 PM     Remind Me!  Send Private Message   Edit Post      
I never had this problem with a galant but I do have this happen at work all the time with Ford Explorer rear wheel bearings.
I use the oxygen and Acetylene torch to cut a slit in race and the race falls out normally. It's the only thing I've found tgat doesn't get hairy
Or take very long.



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Galant VR-4 org Post #: 1200141 posted 01/29/15 10:45 PM     Remind Me!  Send Private Message   Edit Post      
Another couple ways, either cut a slit in the race with a cut off tool and then a metal chisel to split the race, or cut two slots about halfway into and halfway up the race, to allow a bearing splitter to be locked into the slots then use an H-bar to pull it off.



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89Mirageman
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Galant VR-4 org Post #: 1200152 posted 01/30/15 07:37 AM     Remind Me!  Send Private Message   Edit Post      
Kinda confusing here, to me at least. Are you saying the outer race is stuck inside of the knuckle? Or are you saying the inner race won't come off the hub like the guys above are talking about?



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Galant VR-4 org Post #: 1200157 posted 01/30/15 08:56 AM     Remind Me!  Send Private Message   Edit Post      
He's going to put put dry ice on the race (shrinking it) so he must mean the race is stuck in the knuckle.

I personally (and this works with rear Explorer bearings too) put the knuckle on a large block of wood, and use the appropriate diameter drift to pound the race out with a four foot long sledge hammer. It always works, no matter what.



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89Mirageman
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Galant VR-4 org Post #: 1200160 posted 01/30/15 09:16 AM     Remind Me!  Send Private Message   Edit Post      
That's kinda what I was thinking too Dayo.

To the OP, I know you said you've done this before and this is probably silly but you did remove the huge circlip correct?



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Galant VR-4 org Post #: 1200167 posted 01/30/15 09:57 AM     Remind Me!  Send Private Message   Edit Post      
Good call on the clip Chris. It may be stating the obvious, but you just never know sometimes.



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tsitalon1
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Galant VR-4 org Post #: 1200172 posted 01/30/15 11:30 AM     Remind Me!  Send Private Message   Edit Post      
Quoting 89Mirageman:

Kinda confusing here, to me at least. Are you saying the outer race is stuck inside of the knuckle? Or are you saying the inner race won't come off the hub like the guys above are talking about?




I'm sorry, I should have been more clear - It's the outter race stuck in the knuckle itself.


Edited by tsitalon1 (01/30/15 11:51 AM)

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tsitalon1
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Galant VR-4 org Post #: 1200173 posted 01/30/15 11:32 AM     Remind Me!  Send Private Message   Edit Post      
Quoting 89Mirageman:

That's kinda what I was thinking too Dayo.

To the OP, I know you said you've done this before and this is probably silly but you did remove the huge circlip correct?




Absoluetely sir!

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Galant VR-4 org Post #: 1200177 posted 01/30/15 12:01 PM     Remind Me!  Send Private Message   Edit Post      
Can you leave it for a couple of days? It's rust between the knuckle and outer race. If you can leave it, let it soak in WD-40 for a few days.

Also for freezing it, don't use dry ice. It works, but a can of compressed air turned upside down will work faster.



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tsitalon1
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Galant VR-4 org Post #: 1200178 posted 01/30/15 12:31 PM     Remind Me!  Send Private Message   Edit Post      
So the plan is to heat the knuckle in the oven at 400 and then freeze the race, does that still sound like a valid plan?

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Galant VR-4 org Post #: 1200181 posted 01/30/15 12:46 PM     Remind Me!  Send Private Message   Edit Post      
It does. Your attempting to shock the rust that's bonding the two surfaces together. Snap-ring is out right?

Also, you are pressing the bearing out of the front of the knuckle right? The side facing the spindle?

Stupid questions, but just checking.


I usually (and this is VERY dangerous) is set-up the press and apply all the pressure I can, then use the torch to heat the knuckle. Its worked every time so far.



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tsitalon1
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Galant VR-4 org Post #: 1200183 posted 01/30/15 12:51 PM     Remind Me!  Send Private Message   Edit Post      
Yep , snap ring is out and I'm pushing towards the snap ring side.

I"m not real comfortable with the current setup on the press using wrenches under it to level it, but I haven't found a better way yet. I'm nervous the wrenches are going to fly out

Maybe I'll heat/freeze and hit with 4lb baby sledge on the ground first

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Galant VR-4 org Post #: 1200187 posted 01/30/15 01:31 PM     Remind Me!  Send Private Message   Edit Post      
If its as bad as it sounds, i doubt the sledge will help. All else fails take it to a mitsu dealer and ask nicely if they could pop it out.

Yea the wrenches are sketchy. I've used 1" rect tubing to level when pressing.



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tsitalon1
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Galant VR-4 org Post #: 1200221 posted 01/30/15 07:40 PM     Remind Me!  Send Private Message   Edit Post      
Got it!

400 in the oven for 45min...and then used a can of compressed air to freeze the race and press it out....took 5 mins or less

Thanks for the help guys!

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Galant VR-4 org Post #: 1200267 posted 01/31/15 08:15 AM     Remind Me!  Send Private Message   Edit Post      
No problem! glad you got it. Bet it felt great once it "popped".



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tsitalon1
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Galant VR-4 org Post #: 1200273 posted 01/31/15 09:19 AM     Remind Me!  Send Private Message   Edit Post      
Absolutely!!

Makes you wonder about the competency of the local machine shop though

I've given up on most of the machine shops in my area years ago anyway.

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89Mirageman
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Galant VR-4 org Post #: 1200289 posted 01/31/15 10:36 AM     Remind Me!  Send Private Message   Edit Post      
So glad you got it apart. Maybe make this a sticky or somebody do a how to for future use? Also I see why most machine shops don't do stuff like this. They'll wrestle with it for an hour or more using their tools and stuff and most people get upset if they charge over $10 . That's an hour they wasted not working on something else that's paying $50 an hour or more.



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Galant VR-4 org Post #: 1200291 posted 01/31/15 10:40 AM     Remind Me!  Send Private Message   Edit Post      
That's why you bring a box of donuts, or bagels. Food always makes techs and machinists happy.



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89Mirageman
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Galant VR-4 org Post #: 1200294 posted 01/31/15 10:55 AM     Remind Me!  Send Private Message   Edit Post      
LOL, learned that on Jafromobile.



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Galant VR-4 org Post #: 1200297 posted 01/31/15 11:26 AM     Remind Me!  Send Private Message   Edit Post      
I've done a lot of small stuff for a box of donuts in the past.



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tsitalon1
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Galant VR-4 org Post #: 1200304 posted 01/31/15 12:06 PM     Remind Me!  Send Private Message   Edit Post      
Hell, we never got to the point of discussing payment, I would of paid $75 just to have them press it out, which is all I asked them to do. Idiots they are!

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89Mirageman
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Galant VR-4 org Post #: 1200305 posted 01/31/15 12:18 PM     Remind Me!  Send Private Message   Edit Post      
That just goes back to a few bad apples ruin the whole bunch. There are those people out there that don't mind paying you for your time and don't expect anything for nothing. Then there are those that want you to stop what you're doing, fix their stuff and tell them to have a great day.

OP, didn't mean to sound like I was saying you wanted it done for nothing. I was just saying they may have assumed that by being burnt in the past.



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Galant VR-4 org Post #: 1200312 posted 01/31/15 12:57 PM     Remind Me!  Send Private Message   Edit Post      
Everyone has been burned. That's why most shops operate how they have to.



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tsitalon1
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Galant VR-4 org Post #: 1200340 posted 01/31/15 06:23 PM     Remind Me!  Send Private Message   Edit Post   



Still need an alignment and need to address some rubbing issues, but overall I'm happy with it.

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