11-09-2019, 11:04 AM
Thanks Stuart
That is how it should be done. I was involved with Javelins for decades. The final version of reasonably reliable Laystall produced post production cranks were nitrided and were apparently finally ground. Many were later compromised by reconditoners regrinding with wrong technique and burning surface. A very few were renitrided; usually with a linish, but I suspect some escaped this. Exact final size was a bit variable.
That is how it should be done. I was involved with Javelins for decades. The final version of reasonably reliable Laystall produced post production cranks were nitrided and were apparently finally ground. Many were later compromised by reconditoners regrinding with wrong technique and burning surface. A very few were renitrided; usually with a linish, but I suspect some escaped this. Exact final size was a bit variable.