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<p>Which is what I do. And danged if I still don't have the right
one!</p>
<p>Ron Cook, Salix, IA<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 2/25/2020 12:47 PM, Stephen Offiler
wrote:<br>
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<div dir="ltr">As a matter of fact I turn 58 today, and I maintain
my physical fitness to the best of my ability, so you're
probably right in that regard. But sorry, I reject the notion
that bringing the wrong wrench is a blood-pressure-raising
event, and I stand fast by my comment. This simply isn't an
argument against the metric system. Seriously, just bring
several wrenches...
<div><br>
</div>
<div>SO</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Feb 25, 2020 at 1:28
PM <<a href="mailto:deanvp@att.net" moz-do-not-send="true">deanvp@att.net</a>>
wrote:<br>
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<p class="MsoNormal">Steve, </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">You may not have reached the age
where getting down and under a vehicle and then getting
back up is a major effort. Having the wrong wrench when
I get under there is not a happy event. Should I give
up DIY wrenching? Not a chance as long as my body is
still warm. If I didn’t keep trying to do this stuff I
would have been 6’ under a long time ago, </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Dean VP</p>
<p class="MsoNormal">Apache Junction, AZ</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b>From:</b> AT <<a
href="mailto:at-bounces@lists.antique-tractor.com"
target="_blank" moz-do-not-send="true">at-bounces@lists.antique-tractor.com</a>>
<b>On Behalf Of </b>Stephen Offiler<br>
<b>Sent:</b> Tuesday, February 25, 2020 8:18 AM<br>
<b>To:</b> Antique Tractor Email Discussion Group <<a
href="mailto:at@lists.antique-tractor.com"
target="_blank" moz-do-not-send="true">at@lists.antique-tractor.com</a>><br>
<b>Subject:</b> Re: [AT] Supposedly why our old tractors
are not metric and a fairly simple tutorial</p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">You might want to re-think the
whole DIY wrenching thing if that's all it takes to
get your blood pressure up.</p>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">SO</p>
</div>
</div>
<p class="MsoNormal"> </p>
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<div>
<p class="MsoNormal">On Tue, Feb 25, 2020 at 10:13 AM
ustonThomas Mehrkam <<a
href="mailto:tmehrkam@sbcglobal.net"
target="_blank" moz-do-not-send="true">tmehrkam@sbcglobal.net</a>>
wrote:</p>
</div>
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<p class="MsoNormal">It was a evil plot to sell us
another set of tools. The proof is I still need two
sets to service my modern pickup.</p>
<div
id="gmail-m_5469930678955342265gmail-m_-2345801240008035631yMail_cursorElementTracker_1582634531805">
<p class="MsoNormal"> </p>
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<p class="MsoNormal" style="margin-bottom:12pt">It
sells a lot of blood pressure meds. Especially
when I crawl under the darn thing only to find
that one d@m bolt is metric causing a cussing
wrench throwing fit as I crawl back out to get
that evil metric wrench.</p>
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<p class="MsoNormal"><a
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target="_blank" moz-do-not-send="true">Sent
from AT&T Yahoo Mail on Android</a></p>
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<div>
<p class="MsoNormal"><span
style="font-family:Roboto;color:rgb(109,0,246)">On
Tue, Feb 25, 2020 at 3:40 AM, Thomas
Martin</span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:Roboto;color:rgb(109,0,246)"><<a
href="mailto:tmartin@xtra.co.nz"
target="_blank" moz-do-not-send="true">tmartin@xtra.co.nz</a>>
wrote:</span></p>
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<p class="MsoNormal"><br>
> On 25 February 2020 at 17:12 John Hall
<<a href="mailto:jtchall@nc.rr.com"
target="_blank" moz-do-not-send="true">jtchall@nc.rr.com</a>>
wrote:<br>
> <br>
> <br>
> Don't know why they couldn't change pipe
threads, after all the rest of <br>
> the planet uses 60 deg, not 55 for the
British threads. Can't really see <br>
> how it is simpler than what we use. I
mean how exactly do the Japanese <br>
> explain such? Never seen a German print
in inches either for that <br>
> matter. If metric is so much better, then
go all in I say.<br>
<br>
Well the rest of the world for a long time was
British or used British technology<br>
before Sellars came along with his 60º thread
form in the US. The US wasn't a great exporter<br>
at the time, focusing more on internal
expansion & self-sufficiency<br>
> <br>
> You missed the part about leaving out the
bastard pipe threads, didn't <br>
> you? We did so much hydraulic work at one
point that all I stocked was <br>
> NPTF, it works for NPT. As you know, NPT
covers the vast majority, <br>
> while NPTF will cover the majority of
whats left. The scraps can be left <br>
> to those who specialize in oddities.<br>
> <br>
> Never needed an IH bearing that I
couldn't source from wherever. The <br>
> only roller bearing I ever needed that
was manufacture specific was the <br>
> plunger bearing on a New Holland baler.
Motion industries finally was <br>
> able to cross it, but I couldn't find it
any where else, not even <br>
> aftermarket ag parts. And the bearing
housing had to come from New <br>
> Holland, nothing even close. That set up
cost me close to $300<br>
> <br>
I think there is a slight time frame
difference in our work experience,<br>
My experience with Cat, IH, & AC was in
the 60s & 70 and included <br>
machinery built in the 50s. Cat & IH did
insist on bearings that were <br>
only Cat & IH inclusive, whereas AC
crawlers that used more Timken style<br>
bearings, could be sourced from any bearing
supply co. Five times cheaper<br>
than Cat Or IH equivalents.<br>
An interesting aside was that, rarely was
there a need for machining with<br>
AC, Cat or, IH as regards remedial repair of
parts. Good designs leave little<br>
room for improvement.<br>
<br>
> We have an entire section of bastard taps
at work, it has just as many <br>
> oddball metrics as it does english. It
all depends on the industries you <br>
> support as to what is in your tool crib.<br>
><br>
Around here, its fruit and meat processing. <br>
At the local Heinz cannery, all the peach
& pear lines were American sourced,<br>
and the makers delighted in shaft sizes like
1-7/16", 1-9/16" & 1-15/16"<br>
with ODs to match. Only source was the
manufacturer.<br>
Another delight was the spaghetti extruder, it
had a 50hp motor driving <br>
the extruder through reduction gears, every
every shaft was a nominal size +<br>
a 1/16" Guess where the bearings had to come
from. It had one bad design <br>
fault in that the heaviest reduction had no
hunting teeth, and it had some<br>
very bad wear patterns revealed on
dismantling, had a blank forged in Australia,<br>
it was about 600mm with a 152mm face. :-)<br>
> <br>
> I've found that engineers don't always
make stuff weird so you have to <br>
> buy from them, its often so you don't
make a substitution that <br>
> compromises the design. But there are
some that need a plate glass <br>
> stomach.....<br>
"Plate glass stomach"? <br>
Don't know that saying, although I have
modified modified maker's efforts<br>
for the better, when their designs were found
wanting. Flattering when they<br>
come up with the same improvement...<br>
<br>
Tom<br>
> <br>
> John<br>
> <br>
> On 2/24/2020 10:41 PM, Thomas Martin
wrote:<br>
> >> On 25 February 2020 at 15:17
John Hall <<a
href="mailto:jtchall@nc.rr.com"
target="_blank" moz-do-not-send="true">jtchall@nc.rr.com</a>>
wrote:<br>
> >><br>
> >><br>
> >> Fun fact. Did you know metric
pipe threads are actually in inches? They<br>
> >> are actually 55 deg threadform
(British Whitworth) but the pitch is in<br>
> >> metric. And the real fun part is
that the rest of the planet can't even<br>
> >> decide how to spec them on
drawing/print/blueprint. Different countries<br>
> >> have different designations for
the same thing. Off the top of my head,<br>
> >> I think there are a combined 7
different ways of designating metric pipe<br>
> >> threads (taper and straight), as
opposed to just 2. Now we won't split<br>
> >> hairs with short projection,
dryseal or other specialty threads--lets<br>
> >> stick to 99.999% of pipe
threads.<br>
> >><br>
> >> FWIW, I have 30 years in a
machine shop and have continually used both<br>
> >> english and metric without an
issue. Its the rest of the planet that<br>
> >> makes a big ordeal out of it, we
just grab a print and go with it.<br>
> >> English, German, Japanese--its
all the same--until we have to use<br>
> >> Translate Google to figure out
the notes.<br>
> >><br>
> >> One more fun fact. Next time you
need some roller bearings for your old<br>
> >> tractor and start measuring them
only to find they aren't exactly<br>
> >> english, convert them to
metric--you might ought to sit down first.<br>
> >><br>
> >> I won't even get into European
conduit threads--I've only had to do them<br>
> >> twice.<br>
> >><br>
> >> John Hall<br>
> >><br>
> > Well, John<br>
> > Europe did adopt BSP (British
Standard Pipe) threads<br>
> > back in the 19th century, difficult
to change horses now.<br>
> > Quite a simple setup compared to the
American system!<br>
> > Did you know that the US has 11
diffent derivatives of<br>
> > National Pipe threads?<br>
> > As for 11-1/2 tpi NPT, I bet many a
lathe manufacturer<br>
> > swore when Norton invented the quick
change gearbox for<br>
> > lathes and provision had to be made
for that.<br>
> > In fact would say I have cut more
peculiar threads of US<br>
> > origin that elsewhere.<br>
> > That goes for bearings also. Both
Caterpillar and IH used to<br>
> > get bearings, especially
taper-roller, ground to their<br>
> > specific sizes, so that only they
could supply, at a cost<br>
> > 5 to 10 times the cost of a standard
size! Extortionate!<br>
> > Competition finally forced them into
standardization in the finish.<br>
> > FMC was another who engaged in the
practice in another field.<br>
> ><br>
> > Tom<br>
> >
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