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Re: [Mgs] mga 1500 with early 5 main mgb engine

To: "mgs@autox.team.net" <mgs@autox.team.net>
Subject: Re: [Mgs] mga 1500 with early 5 main mgb engine
From: Max Heim <mvheim@sonic.net>
Date: Sun, 30 Jul 2023 17:52:40 -0700
Delivered-to: mharc@autox.team.net
Delivered-to: mgs@autox.team.net
References: <8ba46f6ebee14b168b5e753f84b72499@ranteer.com>
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Hmm, the back of that tach case has obviously been modified. Are you =
sure it still contains the matching internals? I say this because for 20 =
years I ran my Mk. I MGB with the original tach case, faceplate & =
needle, but with a cheap auto parts store mini-tach inside the case. The =
only modifications were two small screw holes to attach the mechanism.

An original MGB Mk. I tach would have had a loop in the white wire, =
attached to the back of the case with a thumb nut and a thin U-shaped =
brass bracket. I am not seeing that on yours.

Actually, I guess it is unclear whether you are talking about an MGA =
tach or an early MGB tach...

--
Max Heim
'66 MGB

> On Jul 30, 2023, at 5:22 PM, dave northrup <dave@ranteer.com> wrote:
>=20
> Negative ground, car runs smoothly, need to install the electric tach =
which supposedly was previously installed in this car and working.
> =20
> On the back view, what hooks up where?  I am pretty sure the tab, and =
the screw, are ground.
> =20
> The other two =E2=80=93 one needs to go to power and the other to the =
coil.  I think one is a female bullet connector; the other is male.  =
Which goes to power and which to the coil?
> <tach front view.jpg><tach rear =
view.jpg>_______________________________________________
>=20
> Donate: http://www.team.net/donate.html =
<http://www.team.net/donate.html>
> Suggested annual donation  $12.75
>=20
> Archive: http://www.team.net/pipermail/mgs =
<http://www.team.net/pipermail/mgs> http://autox.team.net/archive =
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>=20
> Unsubscribe: =
http://autox.team.net/mailman/options/mgs/mvheim@sonic.net =
<http://autox.team.net/mailman/options/mgs/mvheim@sonic.net>

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">Hmm, =
the back of that tach case has obviously been modified. Are you sure it =
still contains the matching internals? I say this because for 20 years I =
ran my Mk. I MGB with the original tach case, faceplate &amp; needle, =
but with a cheap auto parts store mini-tach inside the case. The only =
modifications were two small screw holes to attach the mechanism.<div =
class=3D""><br class=3D""></div><div class=3D"">An original MGB Mk. I =
tach would have had a loop in the white wire, attached to the back of =
the case with a thumb nut and a thin U-shaped brass bracket. I am not =
seeing that on yours.</div><div class=3D""><br class=3D""></div><div =
class=3D"">Actually, I guess it is unclear whether you are talking about =
an MGA tach or an early MGB tach...</div><div class=3D""><br =
class=3D""><div class=3D"">
--<br class=3D"">Max Heim<br class=3D"">'66 MGB

</div>

<div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Jul 30, 2023, at 5:22 PM, dave northrup &lt;<a =
href=3D"mailto:dave@ranteer.com"; class=3D"">dave@ranteer.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><meta =
charset=3D"UTF-8" class=3D""><div class=3D"WordSection1" style=3D"page: =
WordSection1; caret-color: rgb(0, 0, 0); font-family: Verdana; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: =
none;"><div style=3D"margin: 0in; font-size: 11pt; font-family: Calibri, =
sans-serif;" class=3D"">Negative ground, car runs smoothly, need to =
install the electric tach which supposedly was previously installed in =
this car and working.<o:p class=3D""></o:p></div><div style=3D"margin: =
0in; font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div><div style=3D"margin: 0in; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">On the back view, what =
hooks up where?&nbsp; I am pretty sure the tab, and the screw, are =
ground.<o:p class=3D""></o:p></div><div style=3D"margin: 0in; font-size: =
11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div><div style=3D"margin: 0in; font-size: 11pt; =
font-family: Calibri, sans-serif;" class=3D"">The other two =E2=80=93 =
one needs to go to power and the other to the coil.&nbsp; I think one is =
a female bullet connector; the other is male.&nbsp; Which goes to power =
and which to the coil?<o:p class=3D""></o:p></div></div><span =
id=3D"cid:0E29209D-766E-429B-8731-A221A402F560">&lt;tach front =
view.jpg&gt;</span><span =
id=3D"cid:730CBBD9-8EEC-4550-A299-42A08DE3277F">&lt;tach rear =
view.jpg&gt;</span><span style=3D"caret-color: rgb(0, 0, 0); =
font-family: Verdana; font-size: 13px; font-style: normal; =
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; float: none; display: inline !important;" =
class=3D"">_______________________________________________</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Verdana; font-size: =
13px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
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text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Verdana; font-size: =
13px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><a =
href=3D"mailto:Mgs@autox.team.net"; style=3D"font-family: Verdana; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D"">Mgs@autox.team.net</a><br =
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13px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
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text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;" class=3D"">Donate:<span =
class=3D"Apple-converted-space">&nbsp;</span></span><a =
href=3D"http://www.team.net/donate.html"; style=3D"font-family: Verdana; =
font-size: 13px; font-style: normal; font-variant-caps: normal; =
font-weight: 400; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" =
class=3D"">http://www.team.net/donate.html</a><br style=3D"caret-color: =
rgb(0, 0, 0); font-family: Verdana; font-size: 13px; font-style: normal; =
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text-decoration: none;" class=3D""><span style=3D"caret-color: rgb(0, 0, =
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normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; float: none; display: inline !important;" =
class=3D"">Suggested annual donation &nbsp;$12.75</span><br =
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13px; font-style: normal; font-variant-caps: normal; font-weight: 400; =
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