Neil, 

Nice beads there. I don't have have the confidence to make tight neat beads on aluminum so I would try a bead roller. Either one of those modified vise grip bead makers, or a bench vise bead roller.

Alistair

> On Jan 7, 2014, at 10:33 AM, Neil N <musomuso@gmail.com> wrote:
> 
> Though a roller would be best, making a bead on a pipe isn't tough. I
> did this for the junction pipe on my Jetta swap.  Image:
> 
> https://lh5.googleusercontent.com/-2K7Ubsi32-I/UsxHmOH8VFI/AAAAAAAAIuk/Fch06cr1ec8/s720/Shortened%2520coolant%2520pipe.jpg
> 
> Did this earlier on in my < coughs >, fabricating "career" so this
> aspect is not really rocket surgery.
> 
> Neil.
> 
> 
>> On