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floor pans
https://www.ausmini.com/forums/viewtopic.php?f=2&t=67596		 Page 1 of 1
Author:  dale 62 [ Sun Dec 12, 2010 10:15 am ]
Post subject:  floor pans
spot weld or full weld?
Author:  Kennomini [ Sun Dec 12, 2010 11:41 am ]
Post subject: 
I would think full weld to help water proof it and to make it stronger. But don't weld it all in one go, tack weld it in place and then keep working around with more tacs in the gaps until the hole thong is welded up.
I'm not a panel beater or veteran of body work.
Author:  GT mowog [ Sun Dec 12, 2010 11:57 am ]
Post subject: 
If these are the replacement floor pan sections, then they need to be fully welded. As Kenno says ^ tack it in lots of places before welding, do short runs and planish each run as you do them.
Author:  Bubbacluby [ Sun Dec 12, 2010 12:34 pm ]
Post subject: 
If replacing whole floor pan - spot the edges where theey join the wheel arch or the inner sill/lower door section. But weld it where it meets the tunnel or the rear floor pan

If sections of floor pan, Weld the whole section round (i go top and bottom)
Author:  dale 62 [ Sun Dec 12, 2010 1:52 pm ]
Post subject: 
ok thanks should be alright to leave the floor pan bigger than the hole by half inch all around?
Author:  Phat Kat [ Sun Dec 12, 2010 3:25 pm ]
Post subject: 
GT mowog wrote:
If these are the replacement floor pan sections, then they need to be fully welded. As Kenno says ^ tack it in lots of places before welding, do short runs and planish each run as you do them.


Thats correct... if you're oxy welding.

I'f you're using MIG, you don't usually need to.

Do one run, have a look, if it appears to be distorting then you may need to adjust your settings.

Isn't as easy to plannish, or hand form anything thats been MIG welded because the weld is harder than the parent matterial.
Author:  GT mowog [ Sun Dec 12, 2010 3:32 pm ]
Post subject: 
Phat Kat wrote:

Thats correct... if you're oxy welding.


Is there any other way?

And, no, that is not a question.
Author:  Phat Kat [ Sun Dec 12, 2010 3:42 pm ]
Post subject: 
dale 62 wrote:
ok thanks should be alright to leave the floor pan bigger than the hole by half inch all around?


Absolutely.

When you're doing floor repairs, you're meant to overlap the new section, in such a way that the replacement section is sitting on top of the exisitng floor. Half an inch will be fine......

It probably goes without saying... but just incase, remember that there is a fuel line that runs down one side, and a battery cable and brake line that runs up the other...... we'd like to see you come back if you catch my drift :lol:
Author:  68Rusty [ Sun Dec 12, 2010 8:17 pm ]
Post subject: 
Hi Dale 62,

As above as per all other comments.

I also like to run a dual layer over lap, full weld on bottom side and seal the seams after grinding and etch primer. I fully weld some of the inside seam and stitch weld other areas, using seam sealer or equivalent inside also.

Image

Image

Note: When grinding welds back don't go so far that you grind all the weld off. Leave 1.5 - 2mm of butt weld (technically a 1mm fillet weld I guess) left for strength.
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