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#1 malebassplayer

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Posted 20 July 2011 - 11:02 AM

I am replacing the sills and door step on my mini and have removed the jacking point as the floor needed some repair.

I will not need the jacking point when the sills are back on but will i need the replace the bracket that was there? i.e. the part in line with crossmember
I hope this makes sense!
This is how it is looking at the minute
Posted Image

Posted Image
Cheers for the help
Nathan

#2 sonikk4

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Posted 20 July 2011 - 06:08 PM

Ok trying not to sound like a hypocrite here i deleted the jacking points from Project Erm but in hindsight i will now need to carry a trolley jack to lift him up. Whereas in Project Paddy i am replacing the jacking points with new ones to circumvent that issue.

Then as quite rightly pointed out there is also a strength issue as the jacking point is integrated into the outer sill via spot welds and where it ties into the inner sill at the end of the cross member so forming part of the structure.

Erm is only going to be used as a show car whereas Paddy will be a road car. All of the new structure i have fitted will be totally rust proofed and waxoyled plus sealed to prevent water ingress. I wish i had fitted the jacking points on Erm and as had previously been discussed there is the strength issue as well.

#3 skoughi

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Posted 20 July 2011 - 07:35 PM

Opps, i removed the jacking points on mine. Was thinking to either carry a sissor jack and use it on the subframes or just carry a can of tyre repair and a small faglighter compressor. Didn't think there would be too much structural strength lost by removing them.

#4 danie garry

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Posted 20 July 2011 - 07:39 PM

Opps, i removed the jacking points on mine. Was thinking to either carry a sissor jack and use it on the subframes or just carry a can of tyre repair and a small faglighter compressor. Didn't think there would be too much structural strength lost by removing them.


using a scissor jack on the subby can be dangerous, the car can fall off it if you're on any bit of a slope!

#5 sonikk4

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Posted 20 July 2011 - 07:52 PM

Opps, i removed the jacking points on mine. Was thinking to either carry a sissor jack and use it on the subframes or just carry a can of tyre repair and a small faglighter compressor. Didn't think there would be too much structural strength lost by removing them.


There have been various answers in the past for this problem, now not being a structural engineer on cars by removing the jacking points how much strength do you actually lose??? its the same for the slinging points as well. They are not huge brackets to be sure but as they tie things together which will allow stress to be spread evenly throughout the structure then???

I have a thin aluminium trolley jack which we use for lifting the car, i have also thought about a small scissor jack as well.

#6 Shifty

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Posted 20 July 2011 - 07:56 PM

I'm not convinced that they add that much, the clubman estate didn't have them fitted. I can only assume that the same applies to the van and pick up as well.

I wouldn't be too concerned about removing them, they are a bit of a rust trap.

#7 sonikk4

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Posted 20 July 2011 - 08:07 PM

I'm not convinced that they add that much, the clubman estate didn't have them fitted. I can only assume that the same applies to the van and pick up as well.

I wouldn't be too concerned about removing them, they are a bit of a rust trap.


I'm of the same opinion but after getting slated about the slinging brackets inside the sills then i'm playing devils advocate here.

#8 Shifty

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Posted 20 July 2011 - 08:12 PM

Again thats another rust trap. My understanding of them is that they were there for moving the shells around. I don't see how that little bit can provide enough extra reinforcement to warrent replacing it once its rotted out.

On just about every car I've done both of these bits have rotted and then taken the inner sill with them.

I don't usually bother replacing them, if you use genuine outer sills then thats gonna be strong enough.

On the posters car it looks like he's made a nice job of the repair and I'd be very happy with that.

#9 Guess-Works.com

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Posted 20 July 2011 - 08:49 PM

If you do remove the jacking bracket, weld a plate over the hole in the sill so that there is no physical way to put a jack into it...

then at least you or a future owner will not make what could be a disastrous mistake.

#10 valve bounce

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Posted 20 July 2011 - 09:13 PM

If you do remove the jacking bracket, weld a plate over the hole in the sill so that there is no physical way to put a jack into it...

then at least you or a future owner will not make what could be a disastrous mistake.


that's what i've done, i just carry a small scissor jack to use under the subframe

#11 1984mini25

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Posted 20 July 2011 - 11:31 PM

Opps, i removed the jacking points on mine. Was thinking to either carry a sissor jack and use it on the subframes or just carry a can of tyre repair and a small faglighter compressor. Didn't think there would be too much structural strength lost by removing them.


using a scissor jack on the subby can be dangerous, the car can fall off it if you're on any bit of a slope!

But if you knew anything about jacking a vehicle safely, you would already know only to do so on level, firm ground anyways. Besides I’ve always thought of it safer to jack/surport a mini up on the subframes rather than the body anyways.

#12 danie garry

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Posted 20 July 2011 - 11:58 PM

Opps, i removed the jacking points on mine. Was thinking to either carry a sissor jack and use it on the subframes or just carry a can of tyre repair and a small faglighter compressor. Didn't think there would be too much structural strength lost by removing them.


using a scissor jack on the subby can be dangerous, the car can fall off it if you're on any bit of a slope!

But if you knew anything about jacking a vehicle safely, you would already know only to do so on level, firm ground anyways. Besides I’ve always thought of it safer to jack/surport a mini up on the subframes rather than the body anyways.



if you're stuck on the side of a road needing to change a wheel in the pouring rain i dont think too many people are going to go looking for a nice level bit of ground!! its the scissor jack head thats supposed to be against a lip of a sill (of a modern car) on the flat bottom of the subby that makes it so unstable is all i was getting at!

#13 GTIAlex06

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Posted 21 July 2011 - 12:01 AM

Just carry a scissor jack and use the subframe

#14 danie garry

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Posted 21 July 2011 - 12:05 AM

Just carry a scissor jack and use the subframe


me too but i'm always very wary when i use it, i hate the thing!!
would nearly be as well incorporate a mount for a scissor jack to go into in the sills maybe?? probably end up a rust trap like the standard 1 though!!

#15 GTIAlex06

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Posted 21 July 2011 - 12:07 AM

I mean, the amount of times you have to use it compared to the dodgeyness of if.

I always use the trolley at home and just be careful with the scissor when im on the road.

Only needed it once. Altho i still do have the jackin point, id never use it.




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