Hi everyone,

I am going to embark on replacing my front floors - the car looks like the Flinstones car right now.

I am interested in how I should tackle the welding.

My thoughts are:

Close to firewall I would do plug welds
Everywhere else I would tack and do butt joints.

I hope that my question makes sense. I just wasn't sure if when using the patch panel you would need to use plug welds anywhere else.

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1966 Morris Mini Minor Saloon (Dot) - 1275 Auto - Mongrel
1968 Morris Mini Van (Ivan) - 998 Auto - Mongrel
1968 Morris Mini.Matic (George) - Original
1968 Morris Mini.Matic (Charlie) - Original

I wouldn't plug weld it. I would overlap it 10mm at front and seam weld it with MIG so it's weatherproof.
On top, and MIG underneath the lap too if it's on a spit.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Out of curiosity, was that how they did it from factory or is that the way it should be done now?

From memory I had to remove the spot welds to separate the original rusted floor from the firewall.

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1966 Morris Mini Minor Saloon (Dot) - 1275 Auto - Mongrel
1968 Morris Mini Van (Ivan) - 998 Auto - Mongrel
1968 Morris Mini.Matic (George) - Original
1968 Morris Mini.Matic (Charlie) - Original

As you have described is the way I would do it.

Factory was just spot welds with a little bit of brazing here and there. And a touch of mig in a couple places )like where the floor pan joins the inner wheel arch just below the seatbelt strap door retainer). But put together with a spot welder.

They were then tarred over the top of the seams and then painted over the top

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Whether this is the right or wrong way to do it, that's exactly how I did mine, both sides.

Overlap and seam weld top and bottom. Mine also done this way 10 years ago and still perfect.

68auto where did you get the floor repair panel from.

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1978 leyland mini van. New to this, be nice, dont know anything.

The image shown is just one that I found doing a quick Google search that would demonstrate what I was talking about.

The panel I got was probably from MiniSport (Aus). I needed an Aussie panel as the car I am working on is a Mini Matic.

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1966 Morris Mini Minor Saloon (Dot) - 1275 Auto - Mongrel
1968 Morris Mini Van (Ivan) - 998 Auto - Mongrel
1968 Morris Mini.Matic (George) - Original
1968 Morris Mini.Matic (Charlie) - Original

For cars `67 to `78 you need the Oz `hydro' panels. Also available from Karcraft, and Minikingdomonline.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.