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Almost done (FINALY!) welding up these bastards.
Damned slow going. Not only do I suck *** at welding, I can only get to a small section at a time before I have to stop and re-position.
That Stainless really likes to shrink, too, so I'd do a little section on one side, then flip it over and do a section on the opposite side, over and over and over.
Decided to bolt them back up and see if they had warped. So far, so good.
Next step is to get the up-sweep parts on the back fitted. That will allow me to position the rear frame mounts. Once all that's tacked up, that's pretty much the end of the fabrication phase and on to tear down.
I talked that over at length with Pat at Led Sled and the guys on the Quad Cam Bastards forum. The consensus seems to be that as long as you have a top mount, you can get away with not having a front mount.
OK. Don't forget that you only have one down tube, and it has an S bend in it. Not exactly the strongest design.
Pal of mine was a development engineer at BSA way back. They investigated frame torsional rigidity, using a test rig to compare BSA and Triumph twin frames and included a Norton 'featherbed' for interest. They concluded that the reason the Nortons handled so well was that the engine/gearbox were bolted in to the frame everywhere they came close! As a bare frame it wasn't very strong, compared with the other two.
Now I realise you're not building a racer here, but the Sporty engine provides a substantial structure and I agree with the good Dr - make the best use of it! That engine provides the solid foundations on which to attach a few flimsy tubes. And with those forks we want ya to enjoy and survive the riding experience and tell us all about it......
Very nice work Omaha....... I like they way the front pipe travels over the cam... I'm thinking of doing the same to my 77 FXE but a 2-1.......
Looks bad ***.....
Very nice work Omaha....... I like they way the front pipe travels over the cam... I'm thinking of doing the same to my 77 FXE but a 2-1.......
Looks bad ***.....
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