Subject: Re: [Mgs] Shims

From: PaulHunt73 via Mgs <[email-masked]>
Date: Mon, 2 Sep 2019 08:59:36 +0100 st9Q1NW6s6GMs4hEMieZAty68pSdhNvM+Ltz98Z/m2Xbbl7AVe9kWwyU

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No experience with a Sprite but why does it matter?  Each piston comes =
out as far as it needs to to press the pad against the disc.  After that =
they both press on the disc with equal and opposite force.  As long as =
the disc isn't rubbing on the caliper I can't see the problem.  It's not =
a Jaguar, Ferrari or Maserati where such things might be desirable.

PaulH.
  ----- Original Message -----=20

     Ira, I have always used the measure-shim-measure method. The goal =
is of course, to center the rotor on the caliper.
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<DIV><FONT size=3D2>No experience with a Sprite but why does it =
matter?&nbsp; Each=20
piston comes out as far as it needs to to press the pad against the =
disc.&nbsp;=20
After that they both press on the disc with equal and opposite =
force.&nbsp; As=20
long as the disc isn't rubbing on the caliper I can't see the =
problem.&nbsp;=20
It's&nbsp;not&nbsp;a Jaguar, Ferrari or Maserati where such things might =
be=20
desirable.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>PaulH.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV><FONT size=3D2></FONT><FONT size=3D2></FONT><BR></DIV>
  <DIV dir=3Dauto>
  <DIV>&nbsp; &nbsp;Ira, I have always used the measure-shim-measure =
method. The=20
  goal is of course, to center the rotor on the=20
caliper.</DIV></DIV></BLOCKQUOTE></BODY></HTML>

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From: i erbs via Mgs <[email-masked]>
Date: Mon, 2 Sep 2019 07:21:06 -0700

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It mstters so the rotor and hub fit properly on the spindle

Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone

On Mon, Sep 2, 2019, 1:28 AM PaulHunt73 via Mgs <[email-masked]> wrote:

> No experience with a Sprite but why does it matter?  Each piston comes out
> as far as it needs to to press the pad against the disc.  After that they
> both press on the disc with equal and opposite force.  As long as the disc
> isn't rubbing on the caliper I can't see the problem.  It's not a Jaguar,
> Ferrari or Maserati where such things might be desirable.
>
> PaulH.
>
> ----- Original Message -----
>
>    Ira, I have always used the measure-shim-measure method. The goal is of
> course, to center the rotor on the caliper.
>
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.75
>
> Unsubscribe: http://autox.team.net/mailman/options/mgs/[email-masked]
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<div dir=3D"auto">It mstters so the rotor and hub fit properly on the spind=
le<br><br><div data-smartmail=3D"gmail_signature">Ira Erbs<br>Portland, OR<=
br>typos and artifacts are the fault of my phone</div></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Sep 2, 2019,=
 1:28 AM PaulHunt73 via Mgs &lt;<a href=3D"mailto:[email-masked]">mgs@a=
utox.team.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u=

<div bgcolor=3D"#ffffff">
<div><font size=3D"2">No experience with a Sprite but why does it matter?=
=C2=A0 Each=20
piston comes out as far as it needs to to press the pad against the disc.=
=C2=A0=20
After that they both press on the disc with equal and opposite force.=C2=A0=
 As=20
long as the disc isn&#39;t rubbing on the caliper I can&#39;t see the probl=
em.=C2=A0=20
It&#39;s=C2=A0not=C2=A0a Jaguar, Ferrari or Maserati where such things migh=
t be=20
desirable.</font></div>
<div><font size=3D"2"></font>=C2=A0</div>
<div><font size=3D"2">PaulH.</font></div>
<blockquote style=3D"BORDER-LEFT:#000000 2px solid;PADDING-LEFT:5px;PADDING=
-RIGHT:0px;MARGIN-LEFT:5px;MARGIN-RIGHT:0px">
  <div style=3D"FONT:10pt arial">----- Original Message ----- </div>
  <div><font size=3D"2"></font><font size=3D"2"></font><br></div>
  <div dir=3D"auto">
  <div>=C2=A0 =C2=A0Ira, I have always used the measure-shim-measure method=
. The=20
  goal is of course, to center the rotor on the=20
caliper.</div></div></blockquote></div>
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From: PaulHunt73 via Mgs <[email-masked]>
Date: Mon, 2 Sep 2019 16:05:15 +0100 seLTUjC1w8krRoJqHdv8ITBFWvYF131g19cOpxGISm2AtmX5ivHIx8mOq+L+hLkGDdauaWL6BSAiEw==

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That sounds more like bearing shims - the ones to give a specified =
end-float of the hub on the spindle which is needed on the MGB roller =
bearings at least.  After that the disc position is what it is.

There is a long article here =
https://www.mgexp.com/article/mg-midget-wheel-bearings.html which =
describes Midget/Sprite  and MGB bearings, saying that the former is not =
designed to be shimmed whereas the latter is.  Nevertheless they go on =
to describe shimming the Midget and Sprite, but on the same basis as for =
the MGB i.e. to get a certain play in the bearings.

PaulH.

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<DIV><FONT size=3D2>That sounds more like bearing shims&nbsp;- the ones =
to give=20
a&nbsp;specified end-float of the hub on the spindle which is needed on =
the MGB=20
roller bearings at least.&nbsp; After that the disc position is what it=20
is.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>There is a long article here <A=20
href=3D"https://www.mgexp.com/article/mg-midget-wheel-bearings.html">http=
s://www.mgexp.com/article/mg-midget-wheel-bearings.html</A>&nbsp;which=20
describes Midget/Sprite&nbsp; and MGB bearings, saying that the former =
is not=20
designed to be shimmed whereas the latter is.&nbsp; Nevertheless they go =
on to=20
describe shimming the Midget and Sprite, but on the same basis as for =
the MGB=20
i.e. to get a certain play in the bearings.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>PaulH.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"=20
dir=3Dltr>
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV><FONT size=3D2></FONT><BR></DIV>
  <DIV dir=3Dauto>It mstters so the rotor and hub fit properly on the=20
  spindle<BR><BR>
  <DIV data-smartmail=3D"gmail_signature"><FONT=20
size=3D2></FONT>&nbsp;</DIV></DIV></BLOCKQUOTE></BODY></HTML>

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