De seaming a mini using brazing

[series2]

As I remeber from the old days the idea was to do the brazing from the inside. Where the two panels are folded to create the flanges that join together and meet, creates a lovely valley to fill with brass. As long as the panel is really clean the brass flows in beautifully meaning that most of the outside seam can be removed.

I de seamed a mini years ago, Pretty much exactly how to do it!

I used 1" welds about 4" apart, Brazed in between, then ground off the seam from the outside, touching up with braze as needed. some areas have to be done from the outside due to access, these were welded. all done with O&A, BOC Sapphire torch with extended nozzles. I really mis gas welding

I did have all the seams grit blasted first - they MUST be spotless, or it just wont work.

The car is still on the road, no signs of cracking!

 

[chezqui]

I de seamed a mini years ago, Pretty much exactly how to do it!

I used 1" welds about 4" apart, Brazed in between, then ground off the seam from the outside, touching up with braze as needed. some areas have to be done from the outside due to access, these were welded. all done with O&A, BOC Sapphire torch with extended nozzles. I really mis gas welding

I did have all the seams grit blasted first - they MUST be spotless, or it just wont work.

The car is still on the road, no signs of cracking!

I still have a small BOC oxy-accetylene setup. I don't need it (although it is useful) just love it.

 

[series2]

I still have a small BOC oxy-accetylene setup. I don't need it (although it is useful) just love it.

Well said!

Oxy-Acetylene is such a civilised way to weld. I know that for most purposes other methods are better, OA is too hot, horrid for over head work, slow, etc. but when working on rusty old cars it can't be beaten! And what better way to calm down than a 1/2 hour with the Gas Axe? Oh, and the smell

Unfortunately, rental costs, space, and lack of need mean I can't justify having bottles. Luckily I have a mate who has a garage, and a BOC account, so I go visiting when I need a fix!!

 

[jocker]

got a question for all you brits, seeing as DIY in the states seems to be dying you blokes are doing a bang up job keeping me informed. Can an area that has been brazed ever get welded up properly
or what has to be done. Rear quarter on my cars got a gob across a crack and it is cracked, how do i clean it up?

Thanks bunches

 

[chezqui]

Well said!

Oxy-Acetylene is such a civilised way to weld. I know that for most purposes other methods are better, OA is too hot, horrid for over head work, slow, etc. but when working on rusty old cars it can't be beaten! And what better way to calm down than a 1/2 hour with the Gas Axe? Oh, and the smell

Unfortunately, rental costs, space, and lack of need mean I can't justify having bottles. Luckily I have a mate who has a garage, and a BOC account, so I go visiting when I need a fix!!

WOW!!! I thoughgt I was the only one who felt this way about gas welding. Tucked away behind my goggles the quiet calm that is gas welding is a calming therapy. It is also so versatile. I learned to weld 40 years ago and have found that I can continuous weld thin body panel better with gas than tig or mig. Brazing, heating, cleaning endless

Also a little surface rust doesn't prevent the process.

 

[chezqui]

got a question for all you brits, seeing as DIY in the states seems to be dying you blokes are doing a bang up job keeping me informed. Can an area that has been brazed ever get welded up properly
or what has to be done. Rear quarter on my cars got a gob across a crack and it is cracked, how do i clean it up?

Thanks bunches

I have welded where once there was brass. Oxy-accetylene again and a wire brush to get rid of the brass. Then heat the area and the remainder will spit off. The problem is that it will distort and is a little dangerous, but then all welding needs to be done with safety in mind. Can you cut out the entire area and renew?