Subject: [Shop-talk] Tire Pressure Gauges

From: Jeff Scarbrough <[email-masked]>
Date: Sun, 29 May 2022 13:11:04 -0400

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A couple of tire pressure gauge questions:

I got tired of cheap Horrible Freight tire inflators, so I sprung for a
brace of Milton S-506 inflators, thinking of they were good enough for the
gas station of my youth, they ought to be ok now.  One in the garage, one
in the shop...they don't see a ton of use.  Last week, I was filling
bicycle tires in the garage with the hotdog compressor, and couldn't get
the air up sufficiently in the tire.  Finally went to get another
gauge...my electronic gauge quit, and my 50 years old Bridgeport Brass
gauge needs rebuilding, so I grabbed the.othwr Milton inflator.  Turns out,
I had missed blowing up the bicycle tires only by a miracle of Chinese
rubber.  One inflator reads 50 psi while the other one reads 90.

So, like when two inmates at the asylum both claim to be Napoleon, at least
one of them is lying. And at least one will need repairing.

So, two questions:.

1.  Any suggestions for a good reliable electronic or analog pressure gauge
to verify/calibrate the inflators?  (I also need one to put in my
daughter's car, so gloveboxability is a plus).

2.  Anyone ever repair a Milton (or Bridgeport) tire gauge?  Any
suggestions?  The Milton's aren't very old, especially in terms of what we
old guys expect from our expensive American made tools.

Bonus question:. How might one calibrate a pressure gauge against a primary
source?  I'm thinking of a water column or something, but 35 psi is
approximately 80 feet of water.  I'm finding that impractical for home use.

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<div dir=3D"auto">A couple of tire pressure gauge questions:<div dir=3D"aut=
o"><br></div><div dir=3D"auto">I got tired of cheap Horrible Freight tire i=
nflators, so I sprung for a brace of Milton S-506 inflators, thinking of th=
ey were good enough for the gas station of my youth, they ought to be ok no=
w.=C2=A0 One in the garage, one in the shop...they don&#39;t see a ton of u=
se.=C2=A0 Last week, I was filling bicycle tires in the garage with the hot=
dog compressor, and couldn&#39;t get the air up sufficiently in the tire.=
=C2=A0 Finally went to get another gauge...my electronic gauge quit, and my=
 50 years old Bridgeport Brass gauge needs rebuilding, so I grabbed the.oth=
wr Milton inflator.=C2=A0 Turns out, I had missed blowing up the bicycle ti=
res only by a miracle of Chinese rubber.=C2=A0 One inflator reads 50 psi wh=
ile the other one reads 90.</div><div dir=3D"auto"><br></div><div dir=3D"au=
to">So, like when two inmates at the asylum both claim to be Napoleon, at l=
east one of them is lying. And at least one will need repairing.</div><div =
dir=3D"auto"><br></div><div dir=3D"auto">So, two questions:.=C2=A0</div><di=
v dir=3D"auto"><br></div><div dir=3D"auto">1.=C2=A0 Any suggestions for a g=
ood reliable electronic or analog pressure gauge to verify/calibrate the in=
flators?=C2=A0 (I also need one to put in my daughter&#39;s car, so glovebo=
xability is a plus).</div><div dir=3D"auto"><br></div><div dir=3D"auto">2.=
=C2=A0 Anyone ever repair a Milton (or Bridgeport) tire gauge?=C2=A0 Any su=
ggestions?=C2=A0 The Milton&#39;s aren&#39;t very old, especially in terms =
of what we old guys expect from our expensive American made tools.</div><di=
v dir=3D"auto"><br></div><div dir=3D"auto">Bonus question:. How might one c=
alibrate a pressure gauge against a primary source?=C2=A0 I&#39;m thinking =
of a water column or something, but 35 psi is approximately 80 feet of wate=
r.=C2=A0 I&#39;m finding that impractical for home use.</div></div>

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From: Pat Horne <[email-masked]>
Date: Mon, 30 May 2022 11:46:06 -0500

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Agreed. My main concern for the last decade or so is that some of the not =E2=
=80=9Creal=E2=80=9D expensive manufacturers I used to use have cheapened the=
ir products so it=E2=80=99s hard to judge quality.

Peace,
Pat

Pat Horne=20
We support Habitat for Humanity

On May 30, 2022, at 11:31 AM, Jeff Scarbrough <[email-masked]> wrote:

=EF=BB=BF
An electronic gauge based on a bridge strain sensor should be equally durabl=
e, as long as it's made from quality components.  So, it's good electronics a=
nd good alloys that we are looking for. =20

On Mon, May 30, 2022 at 11:11 AM Pat Horne <[email-masked]> wrote:
> I have no research to base my assumption on but I think that a Bourdon tub=
e gauge will be the longest lasting gauge as long as it is used within limit=
s & should maintain its accuracy for as long as it is used.=20
>=20
> Electronic gauges & pencil gauges can change calibration over time but a t=
ube slightly straightening should not change calibration in the comparativel=
y few times we check our tires. I=E2=80=99ve seen Bourdon gauges that are in=
stalled on water pumps where the readings shake violently that are still acc=
urate after decades of 24/7 operation.=20
>=20
> Peace,
> Pat
>=20
> Pat Horne=20
> We support Habitat for Humanity
>=20
>=20
> On May 30, 2022, at 6:41 AM, Robert Rochlin <[email-masked]> wrote:
>=20
> =EF=BB=BFHi Guys,
> 	I=E2=80=99ve been using a Jaco tire gauge for years.  It is accurat=
e, doesn=E2=80=99t use batteries, and is warranted for life. The best part i=
s that it glows in the dark (really) and is very easy to read.  For most of m=
y life I used pencil type inflation gauges, which, while accurate, were real=
ly difficult to read.=20
> https://www.amazon.com/dp/B010A6B6KG/ref=3Dredir_mobile_desktop?_encoding=3D=
UTF8&aaxitk=3D3fb0d5ac19778cf96082216834cd8c21&content-id=3Damzn1.sym.488a18=
be-6d86-4de0-8607-bd4ea4b560f3%3Aamzn1.sym.488a18be-6d86-4de0-8607-bd4ea4b56=
0f3&hsa_cr_id=3D9387928130101&pd_rd_plhdr=3Dt&pd_rd_r=3D33e3d461-fb6d-4c4e-a=
750-20dec79ddb4f&pd_rd_w=3D4N9UY&pd_rd_wg=3DLAyD2&ref_=3Dsbx_be_s_sparkle_mc=
d_asin_0_img
>=20
> 	Best,=20
> 	Bob
> 	=E2=80=9972 TR6
>=20
>> On May 30, 2022, at 12:09 AM, John T. Blair <[email-masked]> wrote:
>>=20
>> At 08:54 PM 5/29/2022, Randy wrote:
>>=20
>> >I've had some of those and I found if i kept them in the glovebox the ba=
tteries=20
>> >didn't last very long, especially in the summer.
>>=20
>> I have to agree.  I have a little nicer electronic one than the one Bob s=
uggested. =20
>> I've had the batteries go bad in several of my electronic gauges and leak=
 and=20
>> made a mess in the gauges.  Trying to clean them and make the usable agai=
n is
>> a real pain.  So I strongly suggest that you take the batteries out of th=
e gauge=20
>> when not in use and store them in a plastic baggie.  That way, when the l=
eak, they=20
>> don't mess up the gauge.
>>=20
>> John
>>=20
>>=20
>>=20
>>  =09
>> This email has been checked for viruses by Avast antivirus software.=20
>> www.avast.com
>>=20
>>=20
>>=20
>>=20
>>=20
>> John T. Blair  WA4OHZ     email:  [email-masked]
>> Va. Beach, Va                  Phone:  (757) 495-8229
>>=20
>>           48 TR1800    48 #4 Midget    65 Morgan 4/4 Series V (B1106)
>>      75 Bricklin SV1 (#0887)    77 Spitfire    71 Saab Sonett III
>>                        65 Rambler Classic
>>=20
>> Morgan:    http://autox.team.net/morgan/
>> Bricklin:     http://www.bricklin.org
>>=20
>> If you can read this             - Thank a teacher!
>> If you are reading it in English - Thank a Vet!!
>>=20
>> =46rom Dennis Prager - The American Trilogy:
>>      e pluribus Unum, "from many, one."
>>      In God We Trust
>>      Liberty - the  power  of  choosing,  thinking,  and  acting  for=20
>>                   oneself; freedom  from  control  or  restriction=20
>>=20
>>=20
>>=20
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation  $12.96
>> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/ar=
chive
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/rroch=
[email-masked]
>>=20
>=20
>=20
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/arc=
hive
>=20
> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/patint=
[email-masked]
>=20
>=20
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> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/arc=
hive
>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Agreed. My main concern for the last decade=
 or so is that some of the not =E2=80=9Creal=E2=80=9D expensive manufacturer=
s I used to use have cheapened their products so it=E2=80=99s hard to judge q=
uality.<div><br></div><div>Peace,</div><div>Pat<br><br><div dir=3D"ltr">Pat H=
orne&nbsp;<div>We support Habitat for Humanity</div><div><br></div></div><di=
v dir=3D"ltr"><br>On May 30, 2022, at 11:31 AM, Jeff Scarbrough &lt;fishplat=
[email-masked]&gt; wrote:<br><br></div><div dir=3D"ltr">=EF=BB=BF<div dir=3D"lt=
r">An electronic gauge based on a bridge strain sensor should be equally dur=
able, as long as it's made from quality components.&nbsp; So, it's good elec=
tronics and good alloys that we are looking for.&nbsp;&nbsp;</div><br><div c=
lass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, May 30, 2=
022 at 11:11 AM Pat Horne &lt;<a href=3D"mailto:[email-masked]">patin=
[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" s=
tyle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padd=
ing-left:1ex"><div dir=3D"auto">I have no research to base my assumption on b=
ut I think that a Bourdon tube gauge will be the longest lasting gauge as lo=
ng as it is used within limits &amp; should maintain its accuracy for as lon=
g as it is used.&nbsp;<br><br>Electronic gauges &amp; pencil gauges can chan=
ge calibration over time but a tube slightly straightening should not change=
 calibration in the comparatively few times we check our tires. I=E2=80=99ve=
 seen Bourdon gauges that are installed on water pumps where the readings sh=
ake violently that are still accurate after decades of 24/7 operation.&nbsp;=
<div><br></div><div>Peace,</div><div>Pat</div><div><br><div dir=3D"ltr">Pat H=
orne&nbsp;<div>We support Habitat for Humanity</div><div><br></div></div><di=
v dir=3D"ltr"><br>On May 30, 2022, at 6:41 AM, Robert Rochlin &lt;<a href=3D=
"mailto:[email-masked]" target=3D"_blank">[email-masked]</a>&gt;=
 wrote:<br><br></div><div dir=3D"ltr">=EF=BB=BFHi Guys,<div><span style=3D"w=
hite-space:pre-wrap">	</span>I=E2=80=99ve been using a Jaco tire gauge fo=
r years.&nbsp; It is accurate, doesn=E2=80=99t use batteries, and is warrant=
ed for life. The best part is that it glows in the dark (really) and is very=
 easy to read.&nbsp; For most of my life I used pencil type inflation gauges=
, which, while accurate, were really difficult to read.&nbsp;</div><div><a h=
ref=3D"https://www.amazon.com/dp/B010A6B6KG/ref=3Dredir_mobile_desktop?_enco=
ding=3DUTF8&amp;aaxitk=3D3fb0d5ac19778cf96082216834cd8c21&amp;content-id=3Da=
mzn1.sym.488a18be-6d86-4de0-8607-bd4ea4b560f3:amzn1.sym.488a18be-6d86-4de0-8=
607-bd4ea4b560f3&amp;hsa_cr_id=3D9387928130101&amp;pd_rd_plhdr=3Dt&amp;pd_rd=
_r=3D33e3d461-fb6d-4c4e-a750-20dec79ddb4f&amp;pd_rd_w=3D4N9UY&amp;pd_rd_wg=3D=
LAyD2&amp;ref_=3Dsbx_be_s_sparkle_mcd_asin_0_img" target=3D"_blank">https://=
www.amazon.com/dp/B010A6B6KG/ref=3Dredir_mobile_desktop?_encoding=3DUTF8&amp=
;aaxitk=3D3fb0d5ac19778cf96082216834cd8c21&amp;content-id=3Damzn1.sym.488a18=
be-6d86-4de0-8607-bd4ea4b560f3%3Aamzn1.sym.488a18be-6d86-4de0-8607-bd4ea4b56=
0f3&amp;hsa_cr_id=3D9387928130101&amp;pd_rd_plhdr=3Dt&amp;pd_rd_r=3D33e3d461=
-fb6d-4c4e-a750-20dec79ddb4f&amp;pd_rd_w=3D4N9UY&amp;pd_rd_wg=3DLAyD2&amp;re=
f_=3Dsbx_be_s_sparkle_mcd_asin_0_img</a></div><div><br></div><div><span styl=
e=3D"white-space:pre-wrap">	</span>Best,&nbsp;</div><div><span style=3D=
"white-space:pre-wrap">	</span>Bob</div><div><span style=3D"white-space:pre=
-wrap">	</span>=E2=80=9972 TR6</div><div><div><br><blockquote type=3D"cite"=
><div>On May 30, 2022, at 12:09 AM, John T. Blair &lt;<a href=3D"mailto:jbla=
[email-masked]" target=3D"_blank">[email-masked]</a>&gt; wrote:</div><br=
><div>
<div>
<font size=3D"3">At 08:54 PM 5/29/2022, Randy wrote:<br><br>
&gt;I've had some of those and I found if i kept them in the glovebox the
batteries <br>
&gt;didn't last very long, especially in the summer.<br><br>
I have to agree.&nbsp; I have a little nicer electronic one than the one
Bob suggested.&nbsp; <br>
I've had the batteries go bad in several of my electronic gauges and leak
and <br>
made a mess in the gauges.&nbsp; Trying to clean them and make the usable
again is<br>
a real pain.&nbsp; So I strongly suggest that you take the batteries out
of the gauge <br>
when not in use and store them in a plastic baggie.&nbsp; That way, when
the leak, they <br>
don't mess up the gauge.<br><br>
John<br><br>
</font><div id=3D"gmail-m_-6151468905483891959DAB4FAD8-2DD7-40BB-A1B8-4E2AA1=
F9FDF2">
<br><br>
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<a width=3D"1" height=3D"1"> </a></div></div>
<br>
<br>
<br>
<div>John T. Blair&nbsp; WA4OHZ&nbsp;&nbsp;&nbsp;&nbsp; email:&nbsp;
<a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]</=
a></div>
<div>Va. Beach,
Va&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;
Phone:&nbsp; (757) 495-8229</div>
<br>
<div>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 48
TR1800&nbsp;&nbsp;&nbsp; 48 #4 Midget&nbsp;&nbsp;&nbsp; 65 Morgan 4/4
Series V (B1106)</div>
<div>&nbsp;&nbsp;&nbsp;&nbsp; 75 Bricklin SV1 (#0887)&nbsp;&nbsp;&nbsp;
77 Spitfire&nbsp;&nbsp;&nbsp; 71 Saab Sonett III</div>
<div>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
65 Rambler Classic</div>
<br>
<div>Morgan:&nbsp;&nbsp;&nbsp;
<a href=3D"http://autox.team.net/morgan/" target=3D"_blank">
http://autox.team.net/morgan/</a></div>
<div>Bricklin:&nbsp;&nbsp;&nbsp;&nbsp;
<a href=3D"http://www.bricklin.org/" target=3D"_blank">
http://www.bricklin.org</a></div>
<br>
<div>If you can read
this&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=

- Thank a teacher!</div>
<div>If you are reading it in English - Thank a Vet!!</div>
<br>
<div> =46rom Dennis Prager - The American Trilogy:</div>
<div>&nbsp;&nbsp;&nbsp;&nbsp; e pluribus Unum, "from many,
one."</div>
<div>&nbsp;&nbsp;&nbsp;&nbsp; In God We Trust</div>
<div>&nbsp;&nbsp;&nbsp;&nbsp; Liberty - the&nbsp; power&nbsp; of&nbsp;
choosing,&nbsp; thinking,&nbsp; and&nbsp; acting&nbsp; for&nbsp; </div>
<div>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;
oneself; freedom&nbsp; from&nbsp; control&nbsp; or&nbsp;
restriction&nbsp; </div>
<br>
<br>

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