Re: Stress proof frame rods
Posted by: C Benson (IP Logged)
Date: October 15, 2003 03:22PM
<HTML>Hi,,,I dont recall that post,,,But i probably would have made mentoin of a steel called ''stressproof'' a trade name,,,,this was the suggestion of Dan Fay,,,one of the engineers at Morgan Construction of Worcester,,,,they design steel [and other] rolling mills,,We talked a lot on steam and Stanley problems,,,this steel is a bit expensive,,,and i'm not sure how well it likes a 60d tool bit,,,,but from a strength and fatigue point of view ,, Dan said it was the choice,,,,Dan did a lot of machining himself so if it was real ugly ,,,I think he would have given me a clue it was hell hinge stock,,,which as you all know is off the chart,,,worse 'n sash weights,,,or chevy cast camshafts, I bont recall any coment on gettin brittle if it was brazed etc I'd be curious on that,,,,XXXXXX Many [lots] of new steels are vastly superior to the antique stuff,,,,Flexing is the culpert,,,larger rods and/or Davids stifner plates are both a good idea,,tho he comments the engine has a bit more viberation in short cutoff,,,as its not so flexable,,,,but thats not a problem I think,,,Don't forget Dave has done a lot of experimenting w/Stanley cutoff,,,,XXXXX On the other side // what ya can get away with,,,,Carl would just make up a steel shaft,threaded,,an weld it onto the broken rod,,,,Dont recall a failure on this fix,,,any comments here??? XXXXX Another cause of failure would be the loostning of the MAIN BEARING NUTS,,,,a lose nut on one side will raise havoc on side opposite,,,think about this one and what it would look like in motion,,,,The nuts on the rearend also loosten,,,,what else is new,,,Hope this is helpful,,,,Good luck all,,,Cheers Ben /ps I included the note on Dan as I thought it might be good that it be known ,the source,,,,,cb</HTML>