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How To Install Full Inner Sills And Outer Sills


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#16 jagman.2003

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Posted 27 July 2015 - 03:12 PM

Great guide. I'm looking at doing some outer/inner sill repairs soon.

The Heritage costs for the repair panels is a bit scary. More economical to buy the complete floor.

But M-Machine options make it a bit more realistic.

Cheers.



#17 sonikk4

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Posted 27 July 2015 - 06:14 PM

Great guide. I'm looking at doing some outer/inner sill repairs soon.

The Heritage costs for the repair panels is a bit scary. More economical to buy the complete floor.

But M-Machine options make it a bit more realistic.

Cheers.

 

It is cheaper to do it this way and now i'm on my second time of using them. Just a bit of a bugger to get them in place. On Wills car i left the flitch repair to last so i could feed the inner sill in that way. Unfortunately with paddy i have already repaired the flitches so i have had to do it somewhat differently. Every job is still a school day. 



#18 frodmyster

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Posted 27 July 2015 - 07:57 PM

Where do you weld the box section to the car itself? I've picked up some 25/25mm box section today, 1.5mm thickness. Would that be adequate as I'm replacing the inner, outer sills and door step. Great thread by the way, pictures are always a big help 👍👍👍

#19 sonikk4

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Posted 27 July 2015 - 08:06 PM

I welded a section across A post to B pillar then boxed that across the car so B pillar to B pillar, A post to A post.

 

Then i welded another section across the width of the car directly above the floor crossmember. From that i did two drop downs to the crossmember and tacked them in place. This helps to support the floor. All of these were welded together to form a frame than can be removed as one piece.

 

Now all of this i welded just above the height of the companion bins as i removed these as well.

 

The thickness of box you have is plenty thick enough for your needs.

 

IMG_4133_zps1wentrqs.jpg



#20 frodmyster

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Posted 27 July 2015 - 08:09 PM

Brilliant 😃😃 thanks very much 👍👍

#21 frodmyster

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Posted 27 July 2015 - 08:17 PM

I'm replacing the inner sill and floor up-to the 1st pipe, the door step and outer sill. Will it be safe to cut all this out? The rear subby is off and the back of the car is an Axel stands. Really sorry about all the questions 😳😳 I'm removing the companion bins 1st so I'll probably do the same frame as you have on the red mini and refit the bins once the sills etc are all fitted

#22 sonikk4

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Posted 27 July 2015 - 08:18 PM

Have a look at the Project Paddy link under my signature. You will see how far i have gone with him with regards to metal removal. 



#23 jenks74

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Posted 14 August 2015 - 04:34 PM

Thanks for this I've been searching about for info on this as I'm a complete noobie to minis and I'm pretty sure i need to do the inner sills on the passenger side!!



#24 sonikk4

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Posted 20 February 2016 - 06:55 PM

As an alternative method for getting the inner sill in place you will need to carefully remove a section of the floor crossmember to just past the inner sill cutline on the floor. This will let you drop the inner sill neatly into place. Once in and you are happy the inner sill is trimmed up correctly then you can reweld the section of crossmember back in place.

 

I took a different approach on Paddy. I really did not want to disturb the crossmember so i cut the inner sill in to two pieces. Once in i then seam welded them back together. Would i do it this way again well the answer is no, i would remove the crossmember. 






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