Just shows Keith is human.

For sure. I really doubt just by watching the video anybody would have picked up on the wrong drill hole anyway but of course there's no point in pretending that no mistake was made since we all make them.

If you don't have any "casenit", another method is to grind up some charcoal, take some stainless steel foil and put the gear in a foil envelope and fill and pack charcoal dust around it and put it in your heat treating oven for a few hours. If you have the inert gas atmosphere attachment, then you can just put the gear in a steel or ceramic pie pan and cover the gear with charcoal dust and dispense with the stainless foil.

Which is what Abom said he does in one of his videos, once the inevitable happened. I hope the comments section on here doesn't degenerate into the Abomesque everyone makes mistakes, happens to the best of us, only proves he's human nonsense; I mean, who the f**k cares.

That's fine if you find a way to accurately work out where each hole is, remembering that the holes are blind meaning you can't just drill from the other side of the shaft to come though the new front gear. I suppose it is possible to figure out exactly where each hole is positioned but the time and effort to do that for the benefit gained would not be warranted, especially if the holes were not originally accurately positioned using a super spacer or the like - each hole would have to be plotted accurately on the DRO in X and Y position. Even if it that were done, how do you position the gear with its new holes to accurately line up with the existing holes when the gear is pressed onto the shaft? With the tightness that the gear pressed onto the shaft, the gear could not be rotated after it is pressed on so the hole alignments would have to be dead nuts, especially the dowel holes, or the dowel pins would not fit through. So overall, the way Keith did it is a much simpler, much less time consuming way for a job where the end result is not a NASA spacecraft type job. Retired machinist in Land Down Under.

@@bobhudson6659 I would have used original gear and transfer punches. As for fitting, heat gear freeze shaft. Drops right on and can rotate. Been there done that. Since he oversized pins anyways would not have been an issue. Too many holes in cast iron makes it weak.

I have not seen Kurtis build up gear teeth on his videos, only many internal bores and some external shafts (and then machining everything to original sizings). Keith also discussed the option of building up teeth using bronze welding at the beginning of this video but with the overall number of damaged teeth, he said best way out is remaking. This Keith (Rucker) and also Keith Fenner have several videos where they indeed braze on material and recut the teeth, but that is maybe for lesser number of teeth replacements or where the total gear replacement is not warranted, meaning not cost effective. Retired machinist in Land Down Under.