i found a coouple of tine cracks in the head lugs , after farther inspection i decided to repair the cracks with a bit of brazing , i drilled holes at the end of the cracks to stop any spreading and it was then i discovered the lugs were poorly brazed , virtually no filling at the miters , i pumped in some some flux paste with a syringe through the relief holes and then heated it up and flowed in some 34% silver bronze rod using the torch to pull the filler through until it was visible at all joints and had emerged out the cracks too ,
while i was at it i added some new gear lever bosses ( i hate band on items ) might be nice, then i decided that a brazed on cable stop would be nice to go along with the brazed on dia compe center pull bosses , then i thought i may as well add a couple of bottle bosses along with threaded inserts in the stay bridges . still lots of cleaning up before i prime it and take it on a test ride to check my questionable brazing before i commit £70 worth of kandy pearl paint to it !
below is the test fit of the brake bosses , not bad right out the packet but needed a tiny bit of shaping .
Notice the scorched flux , too much heat . Learning all the time , I now use 40% silver rod with suitable flux and run the whole joint a lot cooler . Just barely red is hot enough . The flux stays clear now and cleans up real easily.
The boss on the stay bridge was 40% silver joined . Still need more practice to get nice clean joints with minimal flashing .
more soon once i get it all cleaned ,sanded and ready for paint , i may add an integrated saddlebag support to the rear of the frame hence the low cable bridge position , its basically 4 10mm long, 4mm ID . bits of tube brazed to the seat stays , the bag support is made of 4mm stainless steel rod brazed together , the ends of the rack then slide into the 4 tubes . i got the idea from my old george elrick frame .
i will need mine much higher up to meet the bag .