[AT] Crankshaft Manufacture

[Stephen Offiler]

Hi Bob - sure, you're welcome.  The only part of the process I've really
seen is the grinding - it looks just like that in any modern engine
rebuilding shop.  I could imagine most of the rest and not be too far off.
I like the offset chuck setup used to turn the crank journals.  Those
lathes are pretty ancient, but they're keeping them running,  and the
requirement for precision comes only at the end, with the grind.  That's
where you see some real attention to measurements (versus mostly rough
measurements and go/nogo tools in the earlier processes).  And as Spencer
noted, these guys know what they're doing.  Their pace and movements
suggest to me they get paid by the piece, not the hour.  You can see
there's no OSHA in this part of the world, wherever it is.  I've seen other
videos on this channel that are pretty clearly Pakistan (dirt floors, child
labor, open chemicals, no PPE...)

Steve O.

On Sat, Jan 8, 2022 at 2:22 PM rbrooks at hvc.rr.com <rbrooks at hvc.rr.com>
wrote:

> Steve
>
> Thanks for posting this!!  I have seen the process in videos before. But
> it was worth the time to see it again!!
>
> Bob
>
> Sent from my iPhone
>
> On Jan 8, 2022, at 11:39 AM, Spencer Yost <spencer at rdfarms.com> wrote:
>
> I’ll have to watch in bits and pieces but I’ve made it through step two.
> Pretty cool and thanks for sharing it.  It’s pretty clear the two guys I
> have watched so far have made a few crankshafts before. Very efficient and
> methodical with their movements
>
> I decided to read through some of the comments too. Most were positive and
> well thought out. Some added value with additional information.  Of course
> there are a few jerks who pointed out some of the things they are doing
> wrong.   So far I haven’t seen anything but 100% effort and results
> considering the conditions and the strong likelihood there was little if
> any formal  training (that’s actually just a supposition in my part). So
> IMHO the negative comments were completely misguided and out of place.
> Nothing real nasty but clearly along the lines of “the little lights aren’t
> twinkling“ (If you haven’t watched the movie Christmas vacation then that
> one will fly right over your head)
>
> Spencer Yost
>
> Sent from my iPhone
>
> On Jan 8, 2022, at 9:15 AM, Stephen Offiler <soffiler at gmail.com> wrote:
>
> 
> OK, this is a long video (40 min) and it isn't truly antique tractor, but
> bear with me - this is pretty close to how the crankshaft was made in all
> of our old iron.  Some of the machines and fixtures might even be the very
> same ones from many decades ago.  (For Cecil Bearden - this is a Belarus
> crankshaft).  And if you don't have 40 min, you can set Youtube playback
> speed up to 2X.  You won't miss anything.
>
> https://youtu.be/-inYCr-fV3Q
>
> Steve O.
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