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Would You Know How To Remove This Bolt From The Subframe?


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#1 Ian Bloggs

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Posted 15 October 2017 - 11:34 AM

Hi Everyone, I'm dismantling my rear subby for replacement. Can anyone let me know how to remove this bolt?

 

I've removed the nut on the other side of the subby and tried removing the bolt but it won't come out and i suspect that the two hole are there to help turn the bolt out?

 

If not I presume i can buy replacements and rubbers for the new subby?

 

Thanks

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#2 MikeRotherham

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Posted 15 October 2017 - 11:49 AM

I assume you mean the big support pin that holds the rubber bushes.

I bought a cheap adjustable angle grinder key to hold the pin by the 2 holes on the end face and release the bolt on the other end of the pin you can just make out on the first image.

Soak it in Plusgas first and leave it as long as you can.

http://www.ebay.co.u...tsAAOSwujBZxlwW

It should then just pull out.

I'd buy replacements for your new subframe

Edited by MikeRotherham, 15 October 2017 - 11:53 AM.


#3 Stu1961

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Posted 15 October 2017 - 11:54 AM

Have you tried grabbing hold of it with a pair of water pump pliers or large curved jaw mole grips, might also be worth trying to get some WD40 around it to lubricate the rubber bush where the pin goes through, or failing that put a screwdriver or similar through the mounting bracket to heel board bolt holes and try turning it that way.



#4 miniseven61

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Posted 15 October 2017 - 05:40 PM

I would drill through the the flat of the nut then split open with a cold chisel, it doesn't matter if you damage the subframe support it probably needs replacing anyway and they are cheap enough.



#5 Spider

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Posted 16 October 2017 - 07:47 AM

I press them out

 

KhotyXU.jpg



#6 dyshipfakta

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Posted 16 October 2017 - 08:17 AM

Mole grips worked for me.

#7 AndyR

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Posted 16 October 2017 - 02:38 PM

I'd center punch the large flat of the support pin, then drill it off with a large enough bit.  Then you can just punch the spindle through the old rubbers and remove.  Saves faffing trying to loosen an old rusted and probably rounded nut while trying to stop the support pin from turning.


Edited by AndyR, 16 October 2017 - 02:39 PM.


#8 nicklouse

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Posted 16 October 2017 - 03:29 PM

Mole grips worked for me.

all I have ever used.



#9 Ian Bloggs

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Posted 17 October 2017 - 02:53 PM

Thanks for the advice gents.



#10 ga2davt

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Posted 18 October 2017 - 02:13 PM

Last weekend I used an angle grinder to take it off... as others said, new ones should be used. Had to be careful not to trash the bracket though.. 



#11 Spider

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Posted 18 October 2017 - 05:23 PM

new ones should be used. 

 

Forgive my ignorance here, but why is that ?



#12 ga2davt

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Posted 18 October 2017 - 06:45 PM

Not because of tensile strength or because the part is weak or that it is single use item, just that it is often rusty and crackered. 

If yours is fine, there is no reason not to re-use. Mine are being replaced as they are rusty, 30 years old and ... i attacked them with the angle grinder! 

 

I just saw that you are very experienced in the Mini world and know a lot more than me ..

:-)


Edited by ga2davt, 18 October 2017 - 06:46 PM.


#13 Spider

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Posted 19 October 2017 - 02:14 AM

Not because of tensile strength or because the part is weak or that it is single use item, just that it is often rusty and crackered. 

If yours is fine, there is no reason not to re-use. Mine are being replaced as they are rusty, 30 years old and ... i attacked them with the angle grinder! 

 

I just saw that you are very experienced in the Mini world and know a lot more than me ..

:-)

 

Cheers for that.

Mate, I might have a few more years of dirty hands than some, but every day is a school day as they say.

 

I'm in Australia and thankfully, we don't get the same rust & corrosion as our UK counterparts, eg, replacing a rear subframe to us is almost unheard of, but almost seems a routine thing in the UK every 4 - 5 years.

 

With these particular Pins, I don't recall pulling any that were terribly rusty, though I usually do clean them up and send them out for plating. Obviously a different story in the UK.



#14 RooBoonix

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Posted 19 October 2017 - 09:08 AM

 

Not because of tensile strength or because the part is weak or that it is single use item, just that it is often rusty and crackered. 

If yours is fine, there is no reason not to re-use. Mine are being replaced as they are rusty, 30 years old and ... i attacked them with the angle grinder! 

 

I just saw that you are very experienced in the Mini world and know a lot more than me ..

:-)

 

With these particular Pins, I don't recall pulling any that were terribly rusty, though I usually do clean them up and send them out for plating. Obviously a different story in the UK.

 

 

What type of plating do you prefer? Just out of interest..



#15 Spider

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Posted 19 October 2017 - 09:36 AM


What type of plating do you prefer? Just out of interest..

 

 

It's a common plating process and finish. It is Zinc, but has a yellow / gold appearance. You see on many things these days.

 

I used to have plain Zinc done (silver / aluminum appearance) but I found it goes 'chalky' fairly quick.

 

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