25 replies to this topic

[JPayne]

Hi all.

I have a 1992 cooper which has had over / cover sills put on in a previous life , i have removed one of the sills and the damage is horrendous , i am presuming the other side will be the same , would it be easier to replace the complete floor or use full length replacement panels , there is also some rot on the heel board which would be rectified by a new floor.. 

[sonikk4]

The best thing to do is post up some pictures showing the full extent of the damage.

Changing the floor is a big job but if it’s only the inner sill to first flute where the damage lies you can buy good quality repair panels from M Machine.

The same applies to the heelboard, personally f the ends are really bad and there are signs of more rust on the heelboard I would change the complete thing.

I have some very good pictures detailing changing the inner sills to first flute and heelboard replacement in Project Paddy in my signature.

[JPayne]

Thanks Neil , i will put a couple of pictures up..

 

I cant get my photos smaller than 2mb to upload ....

Edited by JPayne, 18 December 2024 - 02:52 PM.

[alpder]

I cant get my photos smaller than 2mb to upload ....

Try XnView? Free image editor, cropper, resizer. Available as an appimage (i.e. no installation required). No ads. Runs on almost anything - Windoze, Mac, Linux, Android, IOS.

[cal844]

You'll need to use a photo hosting site and use a BB code (copy and paste into the message and it'll bring the photo up)

[JPayne]

 new.jpg   53.2K   9 downloads

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Thanks..

Edited by JPayne, 18 December 2024 - 08:35 PM.

[stuart bowes]

you need to know how far back it goes, ideally, try scraping off some of the floor coating working gradually away from the messy area, you might find the floor is just completely shot, or more likely it's contained mostly along both sides

 

in terms of what's 'easier' personally I think I'd rather repair in sections and not have to worry about alignment of the subframe fixing points, repair as-is and just keep things in the right place

 

on the other hand repairing in sections is obviously a lot of MIG welding whereas for the most part replacing whole panels can be done with a load of clamps and a spot welder.  downside being you have to brace things up and take a lot of measurements to make sure it's right

[sonscar]

That's not too bad,m machine do a floor/sill which will fix all that.Steve..

[PeterG]

Repair panels from M-Machine.  I had the same problem with previous owner fitted over-sills. I fitted half floor replacements from M-Machine. Lots of MIG welding. Lots of hours. Great result.

[JPayne]

Thanks gents, it is pretty solid towards the middle , i will have a look at the m machine panels with the inner and outer sill..

[ADRay]

I had bad sills and a couple of small holes in the foot well and heel board, and decided to get the Heritage front-to-back 1/2 floors with sills attached.

It was over kill as I could have just replaced the sills and patched the holes.

Edited by ADRay, 19 December 2024 - 11:31 AM.

[sonikk4]

So if you go down the M machine inner sill to first flute route which I have done several times now there is a lot of work involved.

You will need to remove the companion bins and the floor crossmember. The heelboard if you go down the full panel replacement will need access in the companion bin area anyway so removing it will make life easier.

The heelboard is fairly straight fwd to replace, just a lot of spot welds, however I made a jig for mine before I removed it. ( I also changed the full boot floor amongst many other panels) The jig allowed me to ensure everything was in line and I had minimal issues fitting the subbie afterwards unlike on my lads car.

[coopertaz]

as said above def. remove companion bins and crossmember too makes life so much easier for not a lot of hassle

[s2ulk]

Hi all, sorry to piggy back off JPayne's post but I have exactly the same dilemma at the moment and would welcome any views on this.  After removal of the oversills, my right hand inner sill area is a bit of mess with some holes towards the front and the rear and along the sill line.  My left hand sill (also had an over sill) seems to have survived better as the original outer sill was at least removed before the oversill was fitted.  However, the heelboard is blown out on the right hand side/getting crusty and the floor is pushed up a bit in the middle - likely from poor jacking.

 

Looking at Heritage and M Machine sill repair panels, it's not a great deal more to get a full Heritage floor. Hence I am contemplating whether just do a full floor, especially if it's actually less work overall.  Has anybody done a full floor but also just sill replacement/ repairs and is it significantly more work for a DIYer to do a full floor vs repair panels?

 

Some photos to follow. 

[s2ulk]

Photos of the floor and underneath:

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