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Re: [Healeys] Oil pressure gage fitting

To: Kees Oudesluijs <coudesluijs@chello.nl>
Subject: Re: [Healeys] Oil pressure gage fitting
From: Harold Manifold <manifold@telus.net>
Date: Sat, 2 Sep 2023 08:58:52 -0700
Cc: healeys@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <1950836568.2250461.1693429036086.ref@mail.yahoo.com> <1950836568.2250461.1693429036086@mail.yahoo.com> <1095651096.2923035.1693578277321@mail.yahoo.com> <3ca2851f-01f5-4081-84f3-8da6c2866812@chello.nl>
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Hello,

I have a spare one of these adapters but it came off of a 3000 engine from
a MkI and it might be different from what was used on the 100.

Here are the specs. Small side that threads into the block is 1/8" BSPT -
tapered thread 28 TPI. The large side is 1/4 BSPP - parallel thread 19 TPI.
Note that NPT may be close in size but has a different thread form than
BSP. I made mistakes identifying fittings when I started restoring my car
and learned the hard way to measure twice. All of the pipe and tubing
fittings on my car were either BSPT or BSPP.

I hope this helps.... Harold

On Sat, Sep 2, 2023 at 1:58=E2=80=AFAM Kees Oudesluijs via Healeys <
healeys@autox.team.net> wrote:

> AFAIAC these fittings are always BSP,  usually tapered male, parallel
> female threads. BSP fittings and adaptors are cheap and widely available =
in
> e.g. DIY shops or plumbers, at least in EU, but I also saw these in in US
> hardware shops.
> BSP (UK) threads are similar to NPT (USA) but the top angle of the thread
> profile is 55degrees for BSP and 60degrees for NPT. You usually can feel
> the difference as BSP has a rounded top while the NPT has a flatttened to=
p
> that feels sharper.
>
>
> Op 1-9-2023 om 16:24 schreef warthodson--- via Healeys:
>
> Surely, someone has the specs on this adaptor?
> Gary Hodson
>
> On Wednesday, August 30, 2023 at 06:06:57 PM CDT, warthodson--- via
> Healeys <healeys@autox.team.net> <healeys@autox.team.net> wrote:
>
>
> What are the thread specifications for the adapter/fitting between the
> block & the oil press. gage flex line on a 100?
> I would like to know the TPI, thread form, and are the threads straight o=
r
> tapered & anything else important that I forgot to ask about.
> Thanks,
> Gary Hodson
>
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<div dir=3D"ltr">Hello,<div><br></div><div>I have a spare one of these adap=
ters but it came off of a 3000 engine from a MkI and it might be different =
from what was used on the 100.</div><div><br></div><div>Here are the specs.=
 Small side that threads into the block is 1/8&quot; BSPT - tapered thread =
28 TPI. The large side is 1/4 BSPP - parallel thread 19 TPI. Note that NPT =
may be close=C2=A0in size but has a different thread form than BSP. I made =
mistakes identifying=C2=A0fittings when I started restoring my car and lear=
ned the hard way to measure twice. All of the pipe and tubing fittings on m=
y car were either BSPT or BSPP.</div><div><br></div><div>I hope this helps.=
... Harold</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=
=3D"gmail_attr">On Sat, Sep 2, 2023 at 1:58=E2=80=AFAM Kees Oudesluijs via =
Healeys &lt;<a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.ne=
t</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin=
:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"=
><u></u>

 =20
   =20
 =20
  <div>
    <p>AFAIAC these fittings are always BSP,=C2=A0 usually tapered male,
      parallel female threads. BSP fittings and adaptors are cheap and
      widely available in e.g. DIY shops or plumbers, at least in EU,
      but I also saw these in in US hardware shops.<br>
      BSP (UK) threads are similar to NPT (USA) but the top angle of the
      thread profile is 55degrees for BSP and 60degrees for NPT. You
      usually can feel the difference as BSP has a rounded top while the
      NPT has a flatttened top that feels sharper.</p>
    <p><br>
    </p>
    <div>Op 1-9-2023 om 16:24 schreef
      warthodson--- via Healeys:<br>
    </div>
    <blockquote type=3D"cite">
     =20
      <div style=3D"font-family:&quot;Comic Sans MS&quot;,sans-serif;font-s=
ize:16px">
        <div dir=3D"ltr">Surely, someone has the specs
          on this adaptor?</div>
        <div dir=3D"ltr">Gary Hodson=C2=A0</div>
        <div><br>
        </div>
      </div>
      <div id=3D"m_3481490811091343187ydp6a52811cyahoo_quoted_4528925213">
        <div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Aria=
l,sans-serif;font-size:13px;color:rgb(38,40,42)">
          <div> On Wednesday, August 30, 2023 at 06:06:57 PM CDT,
            warthodson--- via Healeys <a href=3D"mailto:healeys@autox.team.=
net" target=3D"_blank">&lt;healeys@autox.team.net&gt;</a>
            wrote: </div>
          <div><br>
          </div>
          <div><br>
          </div>
          <div>
            <div id=3D"m_3481490811091343187ydp6a52811cyiv6054805142">
              <div>
                <div style=3D"font-family:&quot;Comic Sans MS&quot;,sans-se=
rif;font-size:16px">
                  <div dir=3D"ltr">What are the thread specifications for
                    the adapter/fitting between the block &amp; the oil
                    press. gage flex line on a 100?</div>
                  <div dir=3D"ltr">I would like to know the TPI, thread
                    form, and are the threads straight or tapered &amp;
                    anything else important that I forgot to ask about.</di=
v>
                  <div dir=3D"ltr">Thanks,</div>
                  <div dir=3D"ltr">Gary Hodson</div>
                  <div dir=3D"ltr"><br>
                  </div>
                </div>
              </div>
            </div>
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