Originally Posted by
mikeread
Thanks Duane
Not sure what you mean by 'pucker hole'? I guess it is the hole at the bottom of the seat tube slot?
Also I cannot figure why you would need to drill the TT vent hole twice?
I will drill and cut the seat tube slot in the sleeve before brazing (keeping the end closed) and then add the boss when everything else is done.
Yes, the hole at the bottom of the slot. The first drilling is a hole in the sleeve before brazing. I used the hole in the sleeve to add filler and then had to complete the hole in the actual tube with a 2nd drilling. Same thing for the pucker hole. This approach didn't seem to have any benefits and so I only tried it once with a longer sleeve.
There are many ways to skin this cat!