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 Post subject: bottom ball joint
PostPosted: Thu Oct 02, 2008 2:15 pm 
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Location: Queensland
hey guys i was wondering how do i brake the bottom ball joint on a mini we have unbolted the bolt and it still wont come any special ways to do it ?????????????????


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PostPosted: Thu Oct 02, 2008 2:25 pm 
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You'll need a ball joint splitter tool, or a big hammer and a lot of patience.


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PostPosted: Thu Oct 02, 2008 2:26 pm 
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Location: Under the bonnet son!
There's a couple of ways. The old method is to get two hammers and hit either side of the lower arm where the taper goes through until it drops. this does and doesn't works very well, depending on your luck and temper threshold.

The other is to get a scissor type ball joint cracker from Supercheap or similar. These work extremely well (you'll wonder what all the fuss was about). They cost about $15(ish). Grease the threads thoroughly before you use it. The steel they use on the threads on these cheapies is pretty brittle, but last for years if you hit them with some molly grease first.

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PostPosted: Thu Oct 02, 2008 2:29 pm 
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As per the other posts, but also like to add that I always support the top arm to stop the suspension moving down too far. This is usually achieved with a strategically placed socket.

Daniel

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PostPosted: Thu Oct 02, 2008 2:34 pm 
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you need a ball joint splitter OR you can hit it very hard and sharp with a hammer.

<edit> looks like everyone else covered it...i was too slow typing before i hit submit :lol: :roll:

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PostPosted: Thu Oct 02, 2008 7:10 pm 
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i had the same problem it took a while but i found hitting it with the two hammers works well...i took some time and patience though. good luck

cheers leighton

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PostPosted: Thu Oct 02, 2008 7:20 pm 
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Do not hit the threaded bit of the pin.
You hit the side of the bottom arm where the pin goes through the arm. You do not hit the pin.

One big hit is a lot better than 100 little hits. :wink:


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PostPosted: Thu Oct 02, 2008 8:37 pm 
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Hey I got a mini

I am like lightening when i hit anything with a hammer - its never the same place twice.

You have that many minis in your family that you can all chip in and buy a ball joint splitter. Your going to use it time and time again. Its what ? $5 bucks each ?

Get the scissor type.

Mike


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PostPosted: Thu Oct 02, 2008 9:09 pm 
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I got a sissor type from Supercrap and it was $19.95

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 Post subject:
PostPosted: Thu Oct 02, 2008 9:20 pm 
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Location: Under the bonnet son!
tch tch......inflation. :x .....

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PostPosted: Thu Oct 02, 2008 9:35 pm 
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I'd just get one of your brothers to do it for you :twisted:

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PostPosted: Thu Mar 19, 2009 11:41 am 
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Mick wrote:
...The other is to get a scissor type ball joint cracker from Supercheap or similar. These work extremely well (you'll wonder what all the fuss was about). They cost about $15(ish).


Wow - prices must have gone up! I went in to Super Cheap yesterday and they are $30, then walked into Repco 100m down the road and $40 - for the same thing, same packaging as well.

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PostPosted: Thu Mar 19, 2009 12:15 pm 
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I found a little heat to the outer arm that holds the tapered bolt helps. I used a pocket gas soldering iron which did the trick nicely.


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PostPosted: Thu Mar 19, 2009 1:19 pm 
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I tried one of those super crap ball joint splitters . The bits went every where when it shattered. lucky I was wearing safety glasses.
There is a good type that fits under the arm and the bolt screws down onto the ball joint pin. I just copied it and made one.
A good splitter is a must, less work than repairing damaged threads and skun knuckles

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 Post subject:
PostPosted: Thu Mar 19, 2009 1:39 pm 
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david rosenthal wrote:
There is a good type that fits under the arm and the bolt screws down onto the ball joint pin. I just copied it and made one.


Got a pic?

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I blame my dad for my love of minis. I think I was conceived in the back seat of one :D
I also blame my Dad for me being 6' 1" - not really the optimum height for driving a Mini.


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