Floor pan to Rocker, Seam Weld or not?

[Val]

Hi All,

I am in the process of preparing to replacing both front floor pans, lower firewalls and main section of the rockers (sills).

The original floor pans were spot welded, and I intend to drill holes and plug weld to simulate this. However, I can not tell from my car how the underside of the join between the floorpan and the rocker was finished. Was this seam welded or just filled with seam sealer?

thanks in advance

Val

[Benz Dr.]

I used to weld the floors in about every 1/2 inch apart. Make small welds so that you won't have to grind much off when you're done. I would seal the seam top and bottom.
 There will be a fairly large gap under the car between the floor pan and the sill. Weld into this every 3 or 4 inches apart to make it stronger. Seam seal the whole pan when you're done.

[Val]

Hi Dan

Thanks for that  !  I had hoped that I did not need to do that, but the more I looked at it, the more it looked too weak. If it was only held by spot welds, my worry would be that the pan would distort and pull away from the sill in time and that would open up the seam sealer and start the corrosion off again.

I better start practising my welding 

Val