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TR2/3/3A TR3A Floor Welding Question

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M_Pied_Lourd

M_Pied_Lourd

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Hi Guys,

Quick question. I have started to work a little bit on the 3A again and am back tackling the inner sills and floors. The question is this. When welding in the floors and attaching them to the sills, are they tacked in along the top edge where it butts up against the inner sill or are they drilled/punched out along the flange and plug welded in?

Cheers,
M. Pied Lourd
 
I am by no means an expert....but from the research I have done it seems that they are spot welded up against the top edge where the inner and outer seal meet......under the aluminum trim piece...Hope that helps..
\

Like this link... Weld

Another view... Inside view
 
Thanks JP,

From your photos it looks like I should be drilling some small holes near the top of the flange and putting some spot welds in there.

Will post some pics when I am done. Drivers side sill is in and welded and am currently working on the passenger side. Had to stop for the night as it was too darn hot in the garage.

Cheers,
M. Pied Lourd
 
M. Pier.....I would love to see this pics....I will be doing the same parts you are describing when I get to that point....The pics I referenced is the method I will be using.....trying to learn to weld first....
 
Hi JP,

Will be sure and post some pics. Might not be very pretty though...just learning to weld myself. I will tell you one thing though, it is much much better than the fiberglass patches that were in there before.

As an FYI though, I am not replacing the entire floor. I cut a section out and will be putting a new section in. It will make more sence when you see the photos.

Cheers,
David
 
Dave - If you're planning to use plug welding, you don't want to be drilling all those holes. The is a hand punch about a foot long that can punch all the holes you need in seconds. It's about a foot long and it can punch holes in 22 ga. sheetmetal like the hand-held punches we used in high school to punch holes in a sheet of paper to insert in our loose-leaf binders. - one hole at a time.

Also the head can be rotated half-way round to crimp a zig-zag step all along the edge of your patch for a smoother over-lap finish.

I bought mine in England It is like this one from Eastwood.
https://www.eastwood.com/flanger-and-hole-punch-combination-tool.html

Here is a simple one from Harbor Freight.
https://www.harborfreight.com/hand-tools/punches/hand-punch-44060.html
 
Air flanger from HF. Have one, works great.
 
Thanks guys.

Will head up to my local Princess Auto and have a look. I know that they have the air flanger there pretty cheap but will look for a manual one as well and make the decision then. Always a good excuse to buy a new tool :laugh:

Cheers,
Dave
 
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