Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...
Sponsored by:
Sponsored by:

Help/ideas for a stubborn lower ball joint

Thread Tools
 
Search this Thread
 
Old 05-06-2017 | 08:21 PM
  #1  
thumpetto007's Avatar
Thread Starter
Elite Member
iTrader: (15)
 
Joined: Sep 2010
Posts: 2,041
Total Cats: -117
Default Help/ideas for a stubborn lower ball joint

Whacks with a 5 pound sledge havent budged it.

The harbor frieght press is not strong enough (surpassed the limits of its metallurgy)

been soaking it in aerokroil for two days.

i need a big torch, yes?
Old 05-06-2017 | 08:30 PM
  #2  
18psi's Avatar
VladiTuned
iTrader: (76)
 
Joined: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

yup, torch
Old 05-06-2017 | 08:48 PM
  #3  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,642
Total Cats: 1,866
From: Beaverton, USA
Default

Last one I did used the harbor freight ball joint separator and an impact wrench. The impact wrench was key. We broke one separator with just a wrench, but the impact got it right out. Also grease the threads of the separator.

Old 05-06-2017 | 08:52 PM
  #4  
rleete's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 6,638
Total Cats: 1,284
From: Rochester, NY
Default

Hit the knuckle perpendicular to the threads. It will pop right out.
Old 05-06-2017 | 08:54 PM
  #5  
leboeuf's Avatar
Junior Member
iTrader: (1)
 
Joined: May 2013
Posts: 455
Total Cats: 54
From: Sandia Park, NM
Default

Put the separator on, tighten it as far as you're willing, then hit the knuckle with a sledge. (Your aim needs to be Thor like)
Old 05-06-2017 | 09:08 PM
  #6  
ramensoop's Avatar
Junior Member
iTrader: (1)
 
Joined: Jan 2016
Posts: 160
Total Cats: 29
From: Humble, TX
Default

Originally Posted by aidandj
Last one I did used the harbor freight ball joint separator and an impact wrench. The impact wrench was key. We broke one separator with just a wrench, but the impact got it right out. Also grease the threads of the separator.

this. Even got the giant joints loose on my f250.
Old 05-07-2017 | 01:00 AM
  #7  
thumpetto007's Avatar
Thread Starter
Elite Member
iTrader: (15)
 
Joined: Sep 2010
Posts: 2,041
Total Cats: -117
Default

I got the max heat map gas torch from home depot.

i dont have air tools, so i will grease the threads on the hf separator, thats the exact one i have aiden.

so first ill use the separator, greased, with hammer.

If that doesnt work, ill add the torch, as a last resort.

thanks everyone for your suggestions, I am happy you all stopped in to help.
Old 05-07-2017 | 01:04 AM
  #8  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,642
Total Cats: 1,866
From: Beaverton, USA
Default

They make electric impact wrenches too. Ask to borrow Ed's.
Old 05-07-2017 | 09:46 AM
  #9  
wackbards's Avatar
Senior Member
iTrader: (2)
 
Joined: Nov 2015
Posts: 1,426
Total Cats: 266
From: Seattle
Default

Also, leave the castelated nut on a little bit so that when it breaks free you don't shoot yer ***** off.
Old 05-07-2017 | 02:47 PM
  #10  
thumpetto007's Avatar
Thread Starter
Elite Member
iTrader: (15)
 
Joined: Sep 2010
Posts: 2,041
Total Cats: -117
Default

Originally Posted by wackbards
Also, leave the castelated nut on a little bit so that when it breaks free you don't shoot yer ***** off.
Haha, yes, I did think of this when I was using the press.

I just bought the dewalt impact (probably will return after I use it lol) so I think I'll be able to make quick work of the balljoints now, using all these tips.
Old 05-07-2017 | 03:04 PM
  #11  
technicalninja's Avatar
Senior Member
 
Joined: Mar 2017
Posts: 672
Total Cats: 191
From: Granbury Texas
Default

When all else fails I'll apply pressure separating the joint (separator or most often a large pry-bar).
LEAVE the mounting nut a 1/4 inch loose.
Vibrate the flange that the tapered shaft is stuck in with an air-hammer with a hammer shaped bit on a fairly low setting (so control is easy).
It takes much less violence this way...
You don't break suspension parts or fingers this way when your aim is not "Thor like" which I have trouble with...
I've never failed to remove stuck tapered shaft this way.
I'll do it this way before applying heat as the rubber boots don't like heat.
Only problem here is no air.
I have had luck torqueing a separator down super tight, leave it overnight, and come back to a separated joint in AM.
Good luck.
Old 05-07-2017 | 05:40 PM
  #12  
thumpetto007's Avatar
Thread Starter
Elite Member
iTrader: (15)
 
Joined: Sep 2010
Posts: 2,041
Total Cats: -117
Default

Thanks everyone for your input.

I used the electric impact on the separator, then whacked the knuckle real hard, and BANG out came both ball joints!

It was like a shotgun lol
Old 05-09-2017 | 12:46 PM
  #13  
x_25's Avatar
Elite Member
 
Joined: Oct 2013
Posts: 1,822
Total Cats: 141
From: NorthWest NJ
Default

Back when I worked at a machine shop, the one guy was doing wheel bearings on his Audi. 20ton shop press and heat and man, the sound that made when it let go had us all running for cover.
Old 05-09-2017 | 03:39 PM
  #14  
DaWaN's Avatar
Junior Member
 
Joined: Nov 2012
Posts: 204
Total Cats: 29
From: Netherlands, Europe
Default

I usually resort to two heavy hammers when the tapered end is stuck.
Hold one against one side of the ear and whack it with the other.
This way you transfer most of the impact to the other hammer and your hammering becomes much more effective, otherwise the suspension takes some of the blow.
Like this:
Old 05-09-2017 | 05:06 PM
  #15  
thumpetto007's Avatar
Thread Starter
Elite Member
iTrader: (15)
 
Joined: Sep 2010
Posts: 2,041
Total Cats: -117
Default

^good tip. I need another hammer. I have a 5 pound short sledge, and a plastic/rubber mallet.
Old 05-15-2017 | 08:57 PM
  #16  
jmann's Avatar
Junior Member
 
Joined: May 2008
Posts: 488
Total Cats: 17
From: Grants Pass, OR.
Default

Hold a ball peen hammer against the up right and hit it with the heavy hammer, you can swing harder without risk of hitting something you don't want too.
Old 05-16-2017 | 03:44 PM
  #17  
Savington's Avatar
Former Vendor
iTrader: (31)
 
Joined: Nov 2006
Posts: 15,442
Total Cats: 2,104
From: Sunnyvale, CA
Default

5lb hammers are cute. Do yourself a favor and buy a 12lb sledge.
Old 05-20-2017 | 10:27 PM
  #18  
technicalninja's Avatar
Senior Member
 
Joined: Mar 2017
Posts: 672
Total Cats: 191
From: Granbury Texas
Default

Ninja safety tip: Never hit a hardened hammer with another hardened hammer. Big sharp flakes/chunks can come off the hammers at high speed. Using a hammer on the backside of the part to increase mass is a very good idea and safe. Using hammer on hammer is only safe if one of the hammers is soft (usually brass/bronze).
My payment for this knowledge was blood...
Old 05-20-2017 | 11:50 PM
  #19  
jmann's Avatar
Junior Member
 
Joined: May 2008
Posts: 488
Total Cats: 17
From: Grants Pass, OR.
Default

I've worked in garages for many many years and seen it always done this way numerous times, and have deone it myself numerous times, never heard of a hammer flaking off chunks of steel, especially the round end on a ball peen hammer, When swinging a 12# sledge hammer and you miss by just a small amount you can do alot of damage where you don't need it. I would quit buying china hammers.




All times are GMT -4. The time now is 10:15 AM.