6 replies to this topic

[COOPERSPORT22]

i Have started to patch the boot floor of my project mini. I have been told that using a joddler tool would be my best and easisest option (im a begiiner at the welding!)

My question is can i punch holes in the panel and spot weld to the joddled piece or do I have to weld the seam?

Thanks

[corrado vr6]

Think you mean joggler, as far as i know You will need to Seam weld the panel however you can spot weld where the original was spot welded, if you want you can joggle the edge to help keep think flush however if it was me I would overlap the panel by an inch and seam weld both sides inside and out and spot weld where originally spot welded

[AVV IT]

corrado vr6, on 06 February 2012 - 07:27 PM, said:

Think you mean joggler

No I think you're both right, in that the process can be referred to as both sheet metal "joddling" or "joggling". At least I think I've read different metalworking text books that use both of those terms any way.... and I agree I would certainly seam weld any patch repair and only plug weld in place of the original spot welds.

Edited by AVV IT, 06 February 2012 - 07:41 PM.

[COOPERSPORT22]

Thanks guys!

[corrado vr6]

Apologies lol learn something new every day!

[greenwheels]

I worked for many years in Rover and the previous Leyland companies in Press Tool Engineering and Panel Feasibility and we always talked about "joggles". It's always puzzled me where "joddles" come from and wonder if it is not a mis-print that got out of control.

[tiger99]

Blame Practical Classics magazine for the joddler. Years ago, someone got it wrong. Joggle is the correct term for that kind of joint.

By the way, if the repair is part of a panel, the MOT will require a continuous seam weld so effectively your repair becomes one with the other part of the panel. Plug welds are only allowed in place of spot welds, to join one complete panel to another. You can joggle and seam weld both sides, plug welding first to hold it together if you wish, but an only plug welded joggle will fail the MOT. And, a one side seam welded joggle is a major rust trap, so it is far better to learn to butt weld. The finished repair is much neater too, and need not contain any rust traps.

It is not that hard, just get some Frost intergrips to clamp the bits together will a small gap, and put on a few short, quick runs of weld. take the clamps out, and do a few more short, quick runs, until you have a continuous seam. Don't try long continuous runs until you are very experienced (it will come), or you will end up blowing holes.